Image sensor structure and packaging method thereof

The present invention discloses a CMOS image sensor structure and packaging method thereof. The method includes the following steps: providing an image sensor chip and a transparent package substrate that is ground and cut, the front side of the image sensor chip being provided with an image sensing region and a pad region surrounding the image sensing region; bonding a first end of a metal wire onto the pad, the other end being suspended outside the image sensor chip; bonding the transparent package substrate and the image sensor chip having the metal wire to form an image sensor package, which can be assembled by surface mount technology (SMT) or pressure welding via the exposed and suspended metal wire. In the present invention, an auxiliary substrate is optionally used and an optical glass is directly fixed to the image sensor chip, and the image sensor chip is directly connected to a circuit board. The image sensor products using this packaging method have better performance, reliability ...

Specific bar code and forming method of the same

The present disclosure discloses a specific bar code and a forming method of the bar code, comprising: forming without a particular order on the printing stock: at least a one-dimensional bar code and color information and/or grayscale information in an area corresponding to the one-dimensional bar code, which are superimposed on the printing stock, respectively, wherein data information is generated by identifying the color information and the grayscale information; and if acquired by a portable electronic device having an image capture function, identifying the one-dimensional bar code and the color information and/or grayscale information, respectively, wherein a false positive ratio of identifying the one-dimensional bar code is less than 40%. By superimposing colorful background on the one-dimensional bar code, the present disclosure expands the coding capacity and implements one-code-for-one-article identification so as to bring additional values to vendors for applications such as traceability of one code for one article, while maintaining the features of one-dimensional bar code.

Control Method for Camera Module, and Camera Module

The present disclosure provides a control method for a camera module. The camera module comprises an imaging module, a sleeve module, a lens module which is mounted in the sleeve module and can move along an optical axis direction relative to the sleeve module, at least one coil, at least one magnetic component, and elastic components disposed between the lens module and the sleeve module. The method comprises: pressing the elastic components against the lens module, wherein a deformation of the elastic components perpendicular to the optical axis direction applies a radial positive pressure to the lens module, a frictional force in the optical axis direction is generated by the positive pressure on a contact surface of the elastic components and the lens module so that the frictional force can keep the lens module in a static state in the optical axis direction relative to the elastic components; and supplying current to the at least one coil, wherein the at least one coil or the at least one magnetic component optionally matches the lens module, and the lens module is subject to an electromagnetic force in the optical axis direction, the electromagnetic force acting as a driving force for the lens module to do rectilinear motion along the optical axis direction so as to drive the lens module to move. 1. A control method for a camera module , wherein the camera module comprises an imaging module , a sleeve module , a lens module which is mounted in the sleeve module and can move along an optical axis direction relative to the sleeve module , at least one coil , at least one magnetic component , and elastic components disposed between the lens module and the sleeve module , the control method comprising steps of:a1. pressing the elastic components against the lens module, wherein deformation of the elastic components perpendicular to the optical axis direction applies a radial positive pressure to the lens module, a frictional force in the optical axis direction is ...

Backside illumination image sensor and method for reducing dark current of backside illumination image sensor

A backside illumination image sensor and a method for reducing a dark current of the backside illumination image sensor. The backside illumination image sensor comprises: a photodiode, a first conductive type isolated layer ( 120 ); a gate structure of a pass transistor, corresponding to the first conductive type isolated layer ( 120 ) and formed on an upper surface of a first conductive type semiconductor substrate ( 100 ), the gate structure ( 130 ) comprising: gate oxide ( 131 ), a gate layer ( 132 ), and a gate sidewall ( 133 ), and the gate structure ( 130 ) correspondingly covering the photodiode; and a floating diffusion zone ( 140 ), formed in the first conductive type semiconductor substrate ( 100 ) and having second conductive type heavy doping. In the backside illumination image sensor, a defect does not easily appear on a surface, right above the photodiode, of the first conductive type semiconductor substrate ( 100 ), so that a dark current is effectively prevented from being produced.

Method for controlling a camera module, and associated camera module

The present disclosure provides a control method for a camera module. The camera module comprises an imaging module, a sleeve module, a lens module which is mounted in the sleeve module and can move along an optical axis direction relative to the sleeve module, at least one coil, at least one magnetic component, and elastic components disposed between the lens module and the sleeve module. The method comprises: pressing the elastic components against the lens module, wherein a deformation of the elastic components perpendicular to the optical axis direction applies a radial positive pressure to the lens module, a frictional force in the optical axis direction is generated by the positive pressure on a contact surface of the elastic components and the lens module so that the frictional force can keep the lens module in a static state in the optical axis direction relative to the elastic components; and supplying current to the at least one coil, wherein the at least one coil or the at least one magnetic component optionally matches the lens module, and the lens module is subject to an electromagnetic force in the optical axis direction, the electromagnetic force acting as a driving force for the lens module to do rectilinear motion along the optical axis direction so as to drive the lens module to move.

Limiter based analog demodulator

A limiter based analog demodulator includes a power amplifier receiving a base-band signal and a local clock operating at the base-band frequency. A first multiplier receives an output from the power amplifier and the local clock to provide an in phase signal. A quadrature phase shifter receives the local clock and a second multiplier receives the output from the power amplifier and an output from the phase shifter to provide a quadrature signal. Analog filters receive the in phase and quadrature signals and analog to digital converters connected to the analog filters provide digitized in phase and quadrature signals. The phase detector then receives the digitized in phase and quadrature signals.

Limiter Based Analog Demodulator

A phase detector includes a decimator to decimate a digitized in-phase signal and a digitized quadrature signal to N times a symbol rate, where N is an integer greater than one. A burst detector to detect bursts in an output of the decimator. A carrier offset block to determine an offset angle based on an output of the burst detector. A rotator to generate a rotated signal by rotating the output of the decimator based on the offset angle determined by the carrier offset block. An equalizer to perform coherent demodulation of the rotated signal.

Specific Bar Code and Forming Method of the Same

The present disclosure discloses a specific bar code and a forming method of the bar code, comprising: forming without a particular order on the printing stock: at least a one-dimensional bar code and color information and/or grayscale information in an area corresponding to the one-dimensional bar code, which are superimposed on the printing stock, respectively, wherein data information is generated by identifying the color information and the grayscale information; and if acquired by a portable electronic device having an image capture function, identifying the one-dimensional bar code and the color information and/or grayscale information, respectively, wherein a false positive ratio of identifying the one-dimensional bar code is less than 40%. By superimposing colorful background on the one-dimensional bar code, the present disclosure expands the coding capacity and implements one-code-for-one-article identification so as to bring additional values to vendors for applications such as traceability of one code for one article, while maintaining the features of one-dimensional bar code. 1. A forming method of a specific bar code , comprising:providing a printing stock;forming without a particular order on the printing stock: at least a one-dimensional bar code and color information and/or grayscale information in an area corresponding to the one-dimensional bar code, which are superimposed on the printing stock, respectively, wherein data information is generated by identifying the color information and/or the grayscale information; andif a device identifies information of the one-dimensional bar code and the color information and/or the grayscale information, or if the device only identifies the information of the one-dimensional bar code, a false positive rate of identifying the information of the one-dimensional bar code is less than 40%.2. The forming method according to claim 1 , wherein the one-dimensional bar code comprises bars and nulls; and the color ...

Method and system for manufacturing a pixel image sensor

Pixel image sensors with lateral photodiode elements and vertical overflow drain systems. According to at least one embodiment of the present invention, an image sensor pixel includes a lateral photodiode element and a vertical overflow drain system for draining excessive charges accumulated in the charge collecting region of the lateral photodiode element and for resetting the charge collecting region of the lateral photodiode element.

Method and system for printing stock anti-counterfeiting by means of feature image

A method for printing stock anti-counterfeiting by using a feature image and a corresponding system is disclosed. The method comprises obtaining a feature code for identifying a printing stock by recognizing a first feature of the feature image printed on the printing stock; searching for pre-recorded first anti-counterfeiting information of the printing stock; obtaining second anti-counterfeiting information of the printing stock by recognizing a second feature of the feature image printed on the printing stock; and comparing whether a similarity between the second anti-counterfeiting information and the first anti-counterfeiting information reaches a first match threshold value to determine whether the printing stock is true or false. The first anti-counterfeiting information is embodied as a distinguishable material feature of the printing stock in a feature image region or features of color, shape and position of the image printed in the feature image region.

Digital to analog converter with integral intersymbol interference cancellation

A digital to analog converter (DAC) for a communications system with reduced intersymbol interference incorporates dynamic element matching (DEM) with a matching element array having 2M bits for an input corresponding to M+1 levels thereby employing only one half the range of the DEM and array to produce the DAC output.

Customizing equipment for individualized contact lenses

A customizing equipment for individualized contact lenses comprises an uniform illumination system, a gray image generation system, a projection optical system, a stage system and an alignment system, among which the uniform illumination system generates uniform parallel illuminative light, which generates gray images through the gray image generator controlled by a computer after going through the gray image generation system according to detection results of aberration of human eyes, and images on the image plane of given radius of curvature with photoresist on the samples' surface, which is fixed on the stage system and adjusted to the correct position through the alignment system, after the gray images are zoomed and the curvature of the image field is corrected through the projection optical system, so that the photoresist on the samples' surface will be exposed according to the gray levels of the gray images, after which the exposed samples are developed and etched to obtain the device ...

BACKSIDE ILLUMINATED IMAGE SENSOR WITH THREE-DIMENSIONAL TRANSISTOR STRUCTURE AND FORMING METHOD THEREOF

A method for forming a backside illuminated image sensor with a three-dimensional transistor structure is provided, where forming a gate of the three-dimensional transistor structure includes: forming a source follower transistor and/or a reset transistor with a three-dimensional transistor structure, wherein the source follower transistor and/or the reset transistor correspond to a protruding structure; and forming an insulating sidewall around the protruding structure, forming a groove between the insulating sidewall and a channel region of a transistor corresponding to the protruding structure, and forming a gate of the transistor in the groove, wherein the gate of the transistor is isolated by the insulating sidewall.

CMOS image sensor with substrate noise barrier

An image sensor element includes a vertical overflow drain structure to eliminate substrate charge diffusion causing CMOS image sensor noise. An extra chemical mechanical polish step used to shorten the micro-lens to silicon surface distance in order to reduce optical cross talking. One embodiment uses N type substrate material with P- epitaxial layer to form a vertical overflow drain. Deep P well implantation is introduced to the standard CMOS process to prevent latch-up between an N well to an N type substrate. A photo diode is realized by stacked N well/Deep N well and stacked P well/Deep P well to improve performance.

Image sensor and manufacturing method thereof

An image sensor and a manufacturing method thereof are provided. The image sensor includes: a photo diode; a first-conductive-type isolating layer; a second-conductive-type lightly-doped region formed in the first-conductive-type semiconductor substrate; a first-conductive-type lightly-doped region formed under the second-conductive-type lightly-doped region, where the second-conductive-type lightly-doped region is isolated from the second-conductive-type region by the first-conductive-type lightly-doped region; a gate structure of a transfer transistor; and a floating diffusion region which is second-conductive-type heavily-doped. In the image sensor, the second-conductive-type lightly-doped region is formed to be connected with the floating diffusion region, thus, a distance between the floating diffusion region and the photo diode may be reduced which may enable photo-induced carriers to be transmitted from the photo diode to the floating diffusion region more rapidly, and further increase the transmission efficiency of the photo-induced carriers.

LIMITER BASED ANALOG DEMODULATOR

A limiter based analog demodulator includes a power amplifier receiving a base-band signal and a local clock operating at the base-band frequency. A first multiplier receives an output from the power amplifier and the local clock to provide an in phase signal. A quadrature phase shifter receives the local clock and a second multiplier receives the output from the power amplifier and an output from the phase shifter to provide a quadrature signal. Analog filters receive the in phase and quadrature signals and analog to digital converters connected to the analog filters provide digitized in phase and quadrature signals. The phase detector then receives the digitized in phase and quadrature signals.

Pixel image sensor

Pixel image sensors with lateral photodiode elements and vertical overflow drain systems. According to at least one embodiment of the present invention, an image sensor pixel includes a lateral photodiode element and a vertical overflow drain system for draining excessive charges accumulated in the charge collecting region of the lateral photodiode element and for resetting the charge collecting region of the lateral photodiode element.

Backside illuminated image sensor with three-dimensional transistor structure and forming method thereof

A method for forming a backside illuminated image sensor with a three-dimensional transistor structure is provided, where forming a gate of the three-dimensional transistor structure includes: forming a source follower transistor and/or a reset transistor with a three-dimensional transistor structure, wherein the source follower transistor and/or the reset transistor correspond to a protruding structure; and forming an insulating sidewall around the protruding structure, forming a groove between the insulating sidewall and a channel region of a transistor corresponding to the protruding structure, and forming a gate of the transistor in the groove, wherein the gate of the transistor is isolated by the insulating sidewall.

Method for detecting focal plane based on grating talbot effect

The present disclosure relates to a method for detecting focal plane based on a grating Talbot effect, the function of which is to detect position of a silicon wafer in a photolithography machine in real time so as to implement an adjustment of leveling and foal plane of the silicon wafer in a high resolution. The detection system utilizes a phase change of “self-image” generated by a grating Talbot effect caused by defocusing of the silicon wafer, so as to accomplish the detecting for focal plane of the silicon wafer in the photolithography machine in a high resolution: if the silicon wafer is at a focal plane, the imaged wavefront by the grating is a planar wavefront; and when the silicon wafer is defocused, the imaged wavefront is a spherical wavefront. Such a detection system has a simple structure, a higher anti-interference capability and a perfect adaption of the process.

Method for detecting focus plane based on Hartmann wavefront detection principle

The present disclosure relates to a method for detecting focus plane based on Hartmann wavefront detection principle, the function of which is to detect the position of a silicon wafer in a photolithograph machine in real time so as to accomplish adjustment of the leveling and focus of the silicon wafer. By utilizing microlens array to detect the wavefront carrying information about the position of the silicon wafer based on the Hartmann wavefront detection principle, the spherical wavefront is divided by the respective subunits of the microlens array and is imaged on the respective focus planes of the subunits. If the silicon wafer is located on the focal plane, the incident wavefront for the microlens array is a planar wavefront so that the diffraction light spots are on the focus of the respective subunits of the microlens array; and if the silicon wafer is defocused, the incident wavefront for the microlens array is a spherical wavefront so that the diffraction light spots are shifted ...

Dynamic random access memory (DRAM) and production method, semiconductor packaging component and packaging method

A dynamic random access memory (DRAM) and a production method, a semiconductor packaging component and a packaging method. The production method comprises: providing a memory wafer, the memory wafer being provided with a memory bare chip which is provided with a top metal layer which is provided with a power source bonding pad, a signal bonding pad, and a micro bonding pad, and an internal bus led out of the memory bare chip being electrically connected to the micro bonding pad; repairing the memory wafer; if a yield of the memory wafer is greater than or equal to a preset threshold, rearranging the micro bonding pad to form a butt-joint bonding pad which is electrically connected to the micro bonding pad and the power source bonding pad. A structure of the DRAM is not significantly changed, a data bandwidth of the DRAM is increased, and a high yield is ensured.

Customizing equipment for individualized contact lenses

A customizing equipment for individualized contact lenses comprises an uniform illumination system, a gray image generation system, a projection optical system, a stage system and an alignment system, among which the uniform illumination system generates uniform parallel illuminative light, which generates gray images through the gray image generator controlled by a computer after going through the gray image generation system according to detection results of aberration of human eyes, and images on the image plane of given radius of curvature with photoresist on the samples' surface, which is fixed on the stage system and adjusted to the correct position through the alignment system, after the gray images are zoomed and the curvature of the image field is corrected through the projection optical system, so that the photoresist on the samples' surface will be exposed according to the gray levels of the gray images, after which the exposed samples are developed and etched to obtain the device ...

Focus detection apparatus for projection lithography system

Disclosed is a focus detection apparatus for a projection lithography system. The apparatus includes: a laser; a focus optical unit configured to focusing the emitted laser beam; a force detection unit configured to reflect the focused laser beam at the backside; a position detection unit configured to detect variations in position of a light spot formed by the reflected laser beam, and output a strength signal indicating the strength of the interaction force between the force detection unit and the object; a differential amplifier configured to output a Z-direction differential signal based on the strength signal and a reference signal; a Z-direction feedback control unit configured to perform feedback control; and a scan signal generator configured to output a signal for controlling the movement of the stage in the XY plane. The focus detection apparatus has high precision, efficiency and process applicability.

IMAGE SENSOR, THE OPERATING METHOD AND USAGE THEREOF

To solve the defect of the present image sensor used for obtaining both visible information and information indicating variation, such as low frame rate and being not applicable for portable apparatus, the present invention proposed an image sensor, operating method and usage thereof. The image sensor comprises an optoelectronic array, configured to convert optical signals of a first image and reference images at different moments into electronic signals, and the resolution of the optoelectronic array satisfying the requirement of visualization; a first module, configured to read the electronic signals of said first image by way of sampling, to read the electronic signals of each of said reference images by way of sampling, and to obtain the information indicating variation of the first image with respect to the reference images; and a second module, configured to read at least part of the electronic signals of one or more images, and to obtain at least part of visible information of the one or more images. The image sensor according to the present invention can output the visible information of the image at a suitable frame rate, and can also work at high frame rate and output the information indicating variation of the image, without consuming external resource and being especially applicable to the portable apparatus such as mobile phones.

Method and System for Printing Stock Anti-Counterfeiting by means of Feature Image

The present disclosure relates to a method for printing stock anti-counterfeiting by using a feature image and a corresponding system, wherein the above method comprises obtaining a feature code for identifying a printing stock by recognizing a first feature of the feature image printed on the printing stock; correspondingly searching for pre-recorded first anti-counterfeiting information of the printing stock in a database by using the feature code; obtaining second anti-counterfeiting information of the printing stock by recognizing a second feature of the feature image printed on the printing stock; and comparing whether a similarity between the second anti-counterfeiting information and the first anti-counterfeiting information reaches a first match threshold value through a manual comparing method or an intelligent device comparing method, wherein if the similarity is higher than the first match threshold value, the printing stock is true, else if the similarity is lower than the first match threshold value, the printing stock is false, and wherein the first anti-counterfeiting information is embodied as a distinguishable material feature of the printing stock in a feature image region or features of color, shape and position of the image printed in the feature image region. 1. A method for printing stock anti-counterfeiting by means of a feature image , characterized in comprising steps of:obtaining a feature code for identifying a printing stock by recognizing a first feature of the feature image printed on the printing stock, and correspondingly searching for pre-recorded first anti-counterfeiting information of the printing stock in a database by using the feature code;obtaining second anti-counterfeiting information of the printing stock by recognizing a second feature of the feature image printed on the printing stock; andcomparing whether a similarity between the second anti-counterfeiting information and the first anti-counterfeiting information reaches ...

Limiter based analog demodulator

A phase detector includes a decimator to decimate a digitized in-phase signal and a digitized quadrature signal to N times a symbol rate, where N is an integer greater than one. A burst detector to detect bursts in an output of the decimator. A carrier offset block to determine an offset angle based on an output of the burst detector. A rotator to generate a rotated signal by rotating the output of the decimator based on the offset angle determined by the carrier offset block. An equalizer to perform coherent demodulation of the rotated signal.

Image Sensor Structure and Packaging Method Thereof

The present invention discloses a CMOS image sensor structure and packaging method thereof. The method includes the following steps: providing an image sensor chip and a transparent package substrate that is ground and cut, the front side of the image sensor chip being provided with an image sensing region and a pad region surrounding the image sensing region; bonding a first end of a metal wire onto the pad, the other end being suspended outside the image sensor chip; bonding the transparent package substrate and the image sensor chip having the metal wire to form an image sensor package, which can be assembled by surface mount technology (SMT) or pressure welding via the exposed and suspended metal wire. In the present invention, an auxiliary substrate is optionally used and an optical glass is directly fixed to the image sensor chip, and the image sensor chip is directly connected to a circuit board. The image sensor products using this packaging method have better performance, reliability, and ultra-low packaging costs.

BACKSIDE ILLUMINATION IMAGE SENSOR AND METHOD FOR REDUCING DARK CURRENT OF BACKSIDE ILLUMINATION IMAGE SENSOR

A backside illumination image sensor and a method for reducing a dark current of the backside illumination image sensor. The backside illumination image sensor comprises: a photodiode, a first conductive type isolated layer ( 120 ); a gate structure of a pass transistor, corresponding to the first conductive type isolated layer ( 120 ) and formed on an upper surface of a first conductive type semiconductor substrate ( 100 ), the gate structure ( 130 ) comprising: gate oxide ( 131 ), a gate layer ( 132 ), and a gate sidewall ( 133 ), and the gate structure ( 130 ) correspondingly covering the photodiode; and a floating diffusion zone ( 140 ), formed in the first conductive type semiconductor substrate ( 100 ) and having second conductive type heavy doping. In the backside illumination image sensor, a defect does not easily appear on a surface, right above the photodiode, of the first conductive type semiconductor substrate ( 100 ), so that a dark current is effectively prevented from being produced.

DIGITAL TO ANALOG CONVERTER WITH INTEGRAL INTERSYMBOL INTERFERENCE CANCELLATION

A digital to analog converter (DAC) for a communications system with reduced intersymbol interference incorporates dynamic element matching (DEM) with a matching element array having 2M bits for an input corresponding to M+1 levels thereby employing only one half the range of the DEM and array to produce the DAC output.

Focus detection apparatus for projection lithography system

Disclosed is a focus detection apparatus for a projection lithography system. The apparatus comprises: a laser; a focus optical unit configured to focusing the emitted laser beam; a force detection unit configured to reflect the focused laser beam at the backside; a position detection unit configured to detect variations in position of a light spot formed by the reflected laser beam, and output a strength signal indicating the strength of the interaction force between the force detection unit and the object; a differential amplifier configured to output a Z-direction differential signal based on the strength signal and a reference signal; a Z-direction feedback control unit configured to perform feedback control; and a scan signal generator configured to output a signal for controlling the movement of the stage in the XY plane. The focus detection apparatus has high precision, efficiency and process applicability.

Image Sensor and Manufacturing Method Thereof

The invention discloses an image sensor () and a method of fabricating the image sensor. The image sensor () includes: a substrate () with a metal interconnection layer () formed on a first side thereof; a first type of doped area () located in the substrate (); a second type of doped area () located in the substrate () adjacent to the first type of doped area () to form a photoelectric diode; an electrode layer () located on a second side of the substrate (), wherein the electrode layer () is light-transmissive; and an insulation layer () located between the electrode layer () and the substrate (); wherein there is a predetermined potential difference between the electrode layer () and the substrate () such that a second type of conductive layer () is generated on the surface of the second side of the substrate (). 1. An image sensor , comprising:a substrate with a metal interconnection layer formed on a first side thereof;a first type of doped area located in the substrate;a second type of doped area located in the substrate adjacent to the first type of doped area to form a photoelectric diode;an electrode layer located on a second side of the substrate, wherein the electrode layer is light-transmissive; andan insulation layer located between the electrode layer and the substrate;wherein there is a predetermined potential difference between the electrode layer and the substrate such that a second type of conductive layer is generated on a surface of the second side of the substrate.2. The image sensor according to claim 1 , wherein the first type of doped area is exposed from the second side of the substrate claim 1 , and the predetermined potential difference causes a surface of the first type of doped area to be inverted into the second type of conductive layer.3. The image sensor according to claim 1 , wherein the second type of doped area is exposed from the second side of the substrate and covers the first type of doped area claim 1 , and the predetermined ...

Method and Apparatus for Sending Information Codes with Audio Signals and Obtaining Information Codes

The invention relates to a method and apparatus for sending an information code via an audio signal and retrieving an information code. The method of sending an information code via an audio signal includes the steps of: modulating the information code and a sync header into the audio signal in a second band; and transmitting the modulated audio signal in the second band directly, or superimposing and then transmitting the modulated audio signal in the second band with an audio signal in a first band, wherein the first band is different from the second band.

Image sensor and manufacturing method thereof

An image sensor and a manufacturing method thereof are provided. The image sensor includes: a photo diode; a first-conductive-type isolating layer; a second-conductive-type lightly-doped region formed in the first-conductive-type semiconductor substrate; a first-conductive-type lightly-doped region formed under the second-conductive-type lightly-doped region, where the second-conductive-type lightly-doped region is isolated from the second-conductive-type region by the first-conductive-type lightly-doped region; a gate structure of a transfer transistor; and a floating diffusion region which is second-conductive-type heavily-doped. In the image sensor, the second-conductive-type lightly-doped region is formed to be connected with the floating diffusion region, thus, a distance between the floating diffusion region and the photo diode may be reduced which may enable photo-induced carriers to be transmitted from the photo diode to the floating diffusion region more rapidly, and further increase the transmission efficiency of the photo-induced carriers.

METHOD FOR DETECTING FOCUS PLANE BASED ON HARTMANN WAVEFRONT DETECTION PRINCIPLE

The present disclosure relates to a method for detecting focus plane based on Hartmann wavefront detection principle, the function of which is to detect the position of a silicon wafer in a photolithograph machine in real time so as to accomplish adjustment of the leveling and focus of the silicon wafer. By utilizing microlens array to detect the wavefront carrying information about the position of the silicon wafer based on the Hartmann wavefront detection principle, the spherical wavefront is divided by the respective subunits of the microlens array and is imaged on the respective focus planes of the subunits. If the silicon wafer is located on the focal plane, the incident wavefront for the microlens array is a planar wavefront so that the diffraction light spots are on the focus of the respective subunits of the microlens array; and if the silicon wafer is defocused, the incident wavefront for the microlens array is a spherical wavefront so that the diffraction light spots are shifted on the focus plane of the microlens array. Based on Hartmann wavefront detection principle, the detection of the spherical wavefront may be implemented by the microlens array shifting the imaged light spots for the plane wavefront and the spherical wavefront, so as to accomplish the defocusing measurement for the silicon wafer. The system for detecting focus plane has a simple configuration, a higher accuracy and efficiency, so it is applied to measurement for detecting the focus plane in various types of photolithography machines in a high accuracy and in real time. 1. A method for detecting focus plane based on Hartmann wavefront detection principle , which is implemented by a system for detecting focus plane constituted of a light source and beam collimating and expanding unit , frontal set of lens , measured silicon wafer , posterior set of lens , microlens array and CCD detector , wherein the front set of lens and the posterior set of lens forms a 4f system , and the measured ...

Image Sensor and Payment Authentication Method

The invention relates to an image sensor and a payment authentication method. The image sensor includes: a sensing module configured to optically sense an image and to convert an optical signal of the image into an image signal; and an encryption module configured to encrypt the image signal and to output the encrypted image signal. The payment authentication method includes the steps of: converting an individual image into an image signal by an image sensor, wherein the image sensor includes a sensing module configured to optically sense an image and to convert an optical signal of the image into an image signal and an encryption module configured to encrypt the image signal; encrypting the image signal by the image sensor; and transmitting the image signal processed in the preceding step. With the image sensor and the payment authentication method of the invention, the security of mobile and remote payment may be greatly improved. 1. An image sensor , wherein the image sensor comprises:a sensing module configured to optically sense an image and to convert an optical signal of the image into an image signal; andan encryption module configured to encrypt the image signal and to output the encrypted image signal.220-. (canceled) This application claims priority to the Chinese Application for Patent No. 201110435920.2, entitled “Image Sensor and Payment Authentication Method,” filed on Dec. 22, 2011, the entire disclosure of which is hereby expressly incorporated by reference herein.The present disclosure relates to an image sensor and particularly to an image sensor and a payment authentication method.Mobile and remote payment has increasingly become a necessity for people to pay for their shopping along with rapid development of smart phones and mobile internet, but how to perform secured, rapid and convenient payment authentication has remained as an issue to be addressed. At present, a payment authentication scheme commonly used in mobile and remote payment is by ...

METHOD FOR DETECTING FOCAL PLANE BASED ON GRATING TALBOT EFFECT

The present disclosure relates to a method for detecting focal plane based on a grating Talbot effect, the function of which is to detect position of a silicon wafer in a photolithography machine in real time so as to implement an adjustment of leveling and foal plane of the silicon wafer in a high resolution. The detection system utilizes a phase change of “self-image” generated by a grating Talbot effect caused by defocusing of the silicon wafer, so as to accomplish the detecting for focal plane of the silicon wafer in the photolithography machine in a high resolution: if the silicon wafer is at a focal plane, the imaged wavefront by the grating is a planar wavefront; and when the silicon wafer is defocused, the imaged wavefront is a spherical wavefront. Such a detection system has a simple structure, a higher anti-interference capability and a perfect adaption of the process. 1. A method for detecting focal plane based on Grating Talbot Effect , wherein:a system for detecting focal plane constituted of a light source, a beam collimator and expander unit, a 4f optical system formed of a first set of lens and a second set of lens, a measured silicon wafer, a diffraction grating and a CCD detector, if the measured silicon wafer is on a cofocal plane of the 4f system, an emergence planar wavefront of the beam collimator and expander unit is still a planar wavefront after passing through the 4f optical system, and a Talbot self-image is formed by itself through the diffraction grating; and', 'if the measured silicon wafer is defocused, the emergence planar wavefront of the beam collimator and expander unit becomes a spherical wavefront after passing through the 4f optical system, difference are generated in the period and phase of the Talbot self-image formed by itself through the diffraction grating, and the measurements of the Talbot self-images for the planar wavefront and the spherical wavefront are accomplished by the CCD detector so as to complete the ...

HORIZONTAL FIVE-AXIS PLATE CONVERSION MACHINING CENTER

A horizontal five-axis turning plate type machining center includes a support base, a lathe bed arranged on the support base and a column arranged on the support base, wherein the lathe bed and the column are fixedly connected through a connecting arm, a turning plate device is arranged on the support base, an X-direction sliding plate capable of sliding in an X direction on the lathe bed is arranged on a side, facing the column, of the lathe bed, and a third driving unit capable of driving a workbench to perform position conversion between a turning plate and the X-direction sliding plate is arranged on the turning plate. 1. A horizontal five-axis turning plate type machining center , comprising a support base , a lathe bed arranged on the support base and a column arranged on the support base , wherein the lathe bed and the column are fixedly connected through a connecting arm , the support base is provided with a turning plate device which comprises a turning plate having a lower part hinged to the support base and a first driving unit capable of driving the turning plate to turn over , and an X-direction sliding plate capable of sliding in an X direction on the lathe bed and a second driving unit capable of driving the X-direction sliding plate to slide are arranged on a side , facing the column , of the lathe bed; and a third driving unit capable of driving a workbench to perform position conversion between the turning plate and the X-direction sliding plate is arranged on the turning plate , the X-direction sliding plate is provided with a locking mechanism capable of locking the workbench , the column is provided with a Y-direction sliding plate , the Y-direction sliding plate is provided with a Z-direction ram , and the Z-direction ram is provided with a milling head.2. The horizontal five-axis turning plate type machining center according to claim 1 , wherein the lower part of the turning plate is provided with a first supporting slideway claim 1 , a lower ...

Backside illuminated image sensor and manufacturing method therefor

The present invention relates to a backside illuminated image sensor and a manufacturing method therefor. The backside illuminated image sensor comprises: a silicon wafer layer, which comprises a photodiode for generating an electrical signal by sensing light, wherein the silicon wafer layer is provided with a front surface and a back surface; a rear-end layer, which is provided on the front surface of the silicon wafer layer, wherein the rear-end layer comprises a transistor gate, a gate oxide layer, a wire layer and a dielectric layer; a light incidence layer, which comprises a micro-lens layer and a light filtering film layer, wherein the light incidence layer is provided on the back surface of the silicon wafer layer; and the rear-end layer further comprises: a light-absorbing layer, which is provided in a pre-set position of the rear-end layer, wherein the light-absorbing layer is used for absorbing a light ray transmitted from the silicon wafer layer. The light-absorbing layer employed in the present invention absorbs a light ray transmitted from a device layer, thereby greatly reducing the chance that the transmitted light ray is reflected to other pixels, so as to reduce the mutual crosstalk between adjacent pixels.

Dynamic Random Access Memory (DRAM) and Production Method, Semiconductor Packaging Component and Packaging Method

A dynamic random access memory (DRAM) and a production method, a semiconductor packaging component and a packaging method. The production method of the DRAM comprises: providing a memory wafer, the memory wafer being provided with a memory bare chip, and the memory bare chip being provided with a top metal layer, the top metal layer being provided with a power source bonding pad, a signal bonding pad, and a micro bonding pad, and an internal bus led out of the memory bare chip being electrically connected to the micro bonding pad; repairing the memory wafer; if a yield of the memory wafer is greater than or equal to a preset threshold, rearranging the micro bonding pad to form a butt joint bonding pad, the butt joint bonding pad being electrically connected to the micro bonding pad and the power source bonding pad. The semiconductor packaging method comprises: providing a first wafer of the DRAM; providing a second wafer having a logic chip; realizing wafer level packaging of the first wafer and the second wafer through electrical connection of adaptive butt joint bonding pads. A structure of the DRAM is not significantly changed, a data bandwidth of the DRAM is increased, and meanwhile, a high yield is ensured. 1. A method for forming a dynamic random access memory (DRAM) , comprising:providing a memory wafer, where memory dies are formed on the memory wafer, a top metal layer is formed on the memory dies, power source pads, signal pads and micro pads are formed on the top metal layer, and an internal bus is led out from the memory dies to be electrically connected with the micro pads;repairing the memory wafer;after the repair, if a yield of the memory wafer is greater than or equal to a predetermined threshold, redistributing the micro pads to form bonding pads which are electrically connected with the micro pads and the power source pads.2. (canceled)3. The method according to claim 1 , wherein the memory dies comprise a plurality sets of internal buses claim 1 ...

Vehicle parking method, vehicle parking device, parking system, and vehicle

Centro de mecanizado de tipo horizontal de cinco ejes de conversión de placa

Un centro de mecanizado de conversión de placas horizontal de cinco ejes, que comprende una base de soporte (1), una mesa de torno (2) proporcionada en la base de soporte (1) y una columna de soporte (3) proporcionada en la base de soporte (1). La mesa del torno (2) y la columna del soporte (3) están conectadas fijamente mediante un brazo de conexión (4); la base de soporte (1) está provista además de un dispositivo de conversión de placa (5); el lado de la base del torno (2) que mira hacia la columna de soporte (3) está provisto de una placa deslizante (8) en la dirección X que puede deslizarse sobre la base del torno (2) en la dirección X. (Traducción automática con Google Translate, sin valor legal)

四脊打孔的超宽带喇叭天线

本实用新型公开了一种四脊打孔的超宽带喇叭天线，涉及通信天线技术领域。所述天线包括喇叭天线本体，所述喇叭天线本体包括腔体，所述腔体的底部设置有盖板，所述腔体的侧板上设置有连接器，所述腔体的正面设置有四个呈圆周状排列的脊，所述脊的正面曲线方程为：脊曲线方程+R角圆曲线方程；所述脊的背面是椭圆形曲线；在双曲线变化的脊结构上设有通孔，所述通孔的大小随着脊的结构从内到外，依次变化，且孔中心距离脊正面曲线的距离依次变化，距离根据工作频带宽度内某一特定频点来决定。所述天线可以支持工作在1GHz到18GHz，且在1GHz到18GHz内具有良好的增益特性和较小的驻波，满足5G频段的收发需求。

Utilisation de rhgm-csf pour la fabrication d'un medicament a usage externe pour le traitement de cervicite et/ou de l'erosion cervicale

Method and system for determining well spacing for in-situ leaching mining of high-permeability sandstone-type uranium/copper deposit

The present disclosure relates to a method and a system for determining a well spacing for in-situ leaching mining of a high-permeability sandstone-type uranium/copper deposit. The method includes: constructing a three-dimensional geological model of a sandstone reservoir in a mining region, constructing a spatially-discretized volume element model, a lithology model and a grade model of the sandstone reservoir, and obtaining a fused space model; adding drilling engineering in the fused space model, and setting filter parameters of a pump well and an injection well; carrying out solute particle transport simulation computation on the injection well and the pump well, computing well spacing related parameters; obtaining a current well spacing, and continuously carrying out solute particle transport simulation computation until the current well spacing exceeds a set threshold, and drawing relation curves according to a plurality of groups of well spacing related parameters, so as to determine an optimal well spacing.

用于粉尘环境的氧气分析测量装置

本实用新型涉及气体测量装置，特别是一种用于粉尘环境的氧气分析测量装置。包括含氧分析仪，被测气体容器，真空过滤器，被测气体容器通过管道与含氧分析仪的入口连通，含氧分析仪的出口通过管道与真空过滤器的进气端连通，还包括气动真空发生器，气动真空发生器的供应口通过管道与仪表气气源管道连通，气动真空发生器的真空吸入口通过管道与真空过滤器的出气端连通。体积小、重量轻、能耗低、无振动、低噪音、无污染、价格低，完全满足立式磨硅粉加工系统氧分析仪要求，使用寿命至少4年以上。

Rapid mining method for sandstone-type uranium resources in uranium and coal superposed area

A rapid mining method for sandstone-type uranium resources in a uranium and coal superposed area, which relates to the technical field of mining engineering is provided. The method includes: arranging a high-density adjustable well pattern in an in-situ leaching mining area; determining a length and a position of a filter located on the in-situ leaching mining area through a digital well construction technology; and in a production stage, carrying out operations such as pumping/injection centralized filtration, intensified leaching, high-intensity extraction, high-intensity injection, and change of layout of the high-density adjustable well pattern to rapidly obtain sandstone-type uranium resources in a uranium and coal superposed area. A recovery speed of the sandstone-type uranium resources can be improved, and service life of the in-situ leaching mining area can be shortened.

Walnut drying apparatus

Method for two-phase partitioning production of medium-chain fatty acid (mcfa) by dry anaerobic digestion

The present disclosure provides a method for two-phase partitioning production of a medium-chain fatty acid (MCFA) by dry anaerobic digestion. In the present disclosure, due to a slow heat transfer of the dry anaerobic digestion, a same dry anaerobic digestion device is naturally divided into two phases, and the MCFA is synthesized while producing electron acceptors and electron donors in the same dry anaerobic digestion device. Meanwhile, the dry anaerobic digestion device is provided with a high-efficiency decomposing microbial inoculant on an upper part and inoculated with sludge having a carbon chain extension function on a lower part. In this way, a material residence time is regulated, and cycles of hydrolytic acidification and carbon chain extension are shortened, thereby achieving the high-value conversion of agricultural waste while increasing a conversion rate of organic acids in the dry anaerobic digestion.

Method for two-phase partitioning production of medium-chain fatty acid (MCFA) by dry anaerobic digestion

The present disclosure provides a method for two-phase partitioning production of a medium-chain fatty acid (MCFA) by dry anaerobic digestion. In the present disclosure, due to a slow heat transfer of the dry anaerobic digestion, a same dry anaerobic digestion device is naturally divided into two phases, and the MCFA is synthesized while producing electron acceptors and electron donors in the same dry anaerobic digestion device. Meanwhile, the dry anaerobic digestion device is provided with a high-efficiency decomposing microbial inoculant on an upper part and inoculated with sludge having a carbon chain extension function on a lower part. In this way, a material residence time is regulated, and cycles of hydrolytic acidification and carbon chain extension are shortened, thereby achieving the high-value conversion of agricultural waste while increasing a conversion rate of organic acids in the dry anaerobic digestion.

Digital to analog converter with integral intersymbol interference cancellation

Digital to analog converter with integral intersymbol interference cancellation

A digital to analog converter (DAC) for a communications system with reduced intersymbol interference incorporates dynamic element matching (DEM) with a matching element array (12) having 2M bits for an input (10) corresponding to M+1 levels thereby employing only one half the range of the DEM and array to produce the DAC output (16).

Light weighting method for a three-dimensional model

Method for two-phase partitioning production of medium-chain fatty acid (mcfa) by dry anaerobic digestion

The present disclosure provides a method for two-phase partitioning production of a medium-chain fatty acid (MCFA) by dry anaerobic digestion. In the present disclosure, due to a slow heat transfer of the dry anaerobic digestion, a same dry anaerobic digestion device is naturally divided into two phases, and the MCFA is synthesized while producing electron acceptors and electron donors in the same dry anaerobic digestion device. Meanwhile, the dry anaerobic digestion device is provided with a high-efficiency decomposing microbial inoculant on an upper part and inoculated with sludge having a carbon chain extension function on a lower part. In this way, a material residence time is regulated, and cycles of hydrolytic acidification and carbon chain extension are shortened, thereby achieving the high-value conversion of agricultural waste while increasing a conversion rate of organic acids in the dry anaerobic digestion.

Digital to analog converter with integral intersymbol interference cancellation

A digital to analog converter (DAC) for a communications system with reduced intersymbol interference incorporates dynamic element matching (DEM) with a matching element array (12) having 2M bits for an input (10) corresponding to M+1 levels thereby employing only one half the range of the DEM and array to produce the DAC output (16).

Digital to analog converter with integral intersymbol interference cancellation

CMOS image sensor with substrate noise barrier

Wafer-level packaging method for semiconductor and semiconductor package

Disclosed are a wafer-level packaging method for a semiconductor and a semiconductor package. The wafer-level packaging method for the semiconductor comprises: providing a first wafer having one or more memory chip units, each memory chip unit having a storage array circuit and a peripheral circuit, a first scribe line being provided between adjacent memory chip units; providing a second wafer having one or more logic chip units, an area of each logic chip unit corresponding to an area of N memory chip units, N being a natural number greater than or equal to one, a second scribe line being provided between adjacent logic chip units, the second scribe line matching the first scribe line at the periphery of the N memory chip units; and bonding the first wafer to the second wafer to enable the logic chip units to match with the N memory chip units correspondingly. The wafer-level packaging method for the semiconductor expands the application range of a package of a memory wafer.

Carbon Composite, and Preparation Method and Use Thereof

Provided are a carbon composite and a preparation method thereof. The preparation method includes: distilling a bio-tar to obtain a distilled substrate; mixing the distilled substrate and a biochar material to obtain a polymerization starting material; polymerizing the polymerization starting material to obtain a polymer; and mixing the polymer with an activator to obtain a mixture and subjecting the mixture to activation to obtain the carbon composite; wherein the distilling is conducted at a temperature of 120° C. to 150° C.; the activator includes sodium bicarbonate, and a mass ratio of the polymer to the activator is in a range of 1:1 to 1:4; and the activation is conducted at an activation temperature of 700° C. to 800° C. in an anoxic atmosphere for 1 h to 2 h, and the activation temperature is obtained by heating at a speed of 5° C./min to 10° C./min.

Three-dimensional carbon-based copolymerization composite, and preparation method and use thereof

Provided are a three-dimensional carbon-based copolymerization composite, and a preparation method and use thereof. The preparation method includes dissolving a hydroxyquinone compound and a diamine compound to obtain a dissolved system, and subjecting the dissolved system to first reaction to obtain first reaction system; mixing the first reaction system and monomer, and subjecting a resulting mixed system to amidation to obtain an amidation reaction system; subjecting a graphitized carbon to first dispersion, ball milling, and second dispersion sequentially to obtain a graphitized carbon dispersion; and mixing the amidation reaction system, the graphitized carbon dispersion, a cross-linking agent, and an initiator, and subjecting a resulting mixture to polymerization to obtain the three-dimensional carbon-based copolymerization composite, wherein a molar ratio of the diamine compound to the hydroxyquinone compound is 1:(2-3); and the monomer comprises a carboxyl group and a double bond in a structure thereof.

Illumination field non-uniformity detection system, detection method, correction method, and device

The present disclosure provides illumination field non-uniformity detection system, detection method, correction method, and device provided. The system includes a displacement control module, configured for controlling a displacement platform to drive a photodetector and an image sensor to move within an illumination field; an illumination signal acquisition module, configured for controlling the photodetector to collect different response signals at various collecting frequencies within the illumination field and controlling the image sensor to collect response images within the illumination field; a data processing module, configured for obtaining, based on the different response signals, multiple illumination fields with different light radiation intensities and a light intensity distribution considered to be uniform; based on the multiple illumination fields considered to be uniform, obtaining multiple corrected image sensor grayscale matrices; fitting the multiple corrected image sensor grayscale matrices to obtain a parameter matrix; and a non-uniformity detection module, configured for correcting the response images based on the parameter matrix; and characterizing a non-uniformity of the light intensity distribution within the illumination field using non-uniform metrics of the grayscale distribution of the corrected response images. The system enables systematic detection.

Automatic replenishment, air-staging and grate-firing straw bundle combusting boiler

The invention discloses an automatic replenishment, air-staging and grate-firing straw bundle combusting boiler which comprises a boiler body, an air distributing unit, a water circulating unit, a smoke discharging unit and a control unit. In work, a straw bundle is placed on a first combustion platform through a feed port, an electric heating bar is heated to a certain temperature, then the straw bundle is ignited, the air distributing unit introduces the air heated by an air preheater into an combustion chamber of the boiler body through an air distributing nozzle, ash generated by combustion of the straw bundle falls onto a second combustion platform to continue to be combusted, the high-temperature smoke generated by combustion exchanges heat with the water circulating unit and is then guided out under the effect of an induced draft fan, part of the smoke enters a smoke analyzer through a smoke sampling pipeline, the rest of the smoke enters a wet precipitator, the purified smoke is discharged out of a chimney, a water circulating layer of the water circulating unit can absorb the heat of the high-temperature smoke, a hot water outlet water pool can convey circulating water into the water circulating layer, and the circulating water subjected to heat exchanging flows back to a hot water outlet tank.

Horizontal five-axis plate conversion machining center

A horizontal five-axis turning plate type machining center includes a support base, a lathe bed arranged on the support base and a column arranged on the support base, wherein the lathe bed and the column are fixedly connected through a connecting arm, a turning plate device is arranged on the support base, an X-direction sliding plate capable of sliding in an X direction on the lathe bed is arranged on a side, facing the column, of the lathe bed, and a third driving unit capable of driving a workbench to perform position conversion between a turning plate and the X-direction sliding plate is arranged on the turning plate.

Automatic replenishment, air-staging and grate-firing straw bundle combusting boiler

The invention discloses an automatic replenishment, air-staging and grate-firing straw bundle combusting boiler which comprises a boiler body, an air distributing unit, a water circulating unit, a smoke discharging unit and a control unit. In work, a straw bundle is placed on a first combustion platform through a feed port, an electric heating bar is heated to a certain temperature, then the straw bundle is ignited, the air distributing unit introduces the air heated by an air preheater into an combustion chamber of the boiler body through an air distributing nozzle, ash generated by combustion of the straw bundle falls onto a second combustion platform to continue to be combusted, the high-temperature smoke generated by combustion exchanges heat with the water circulating unit and is then guided out under the effect of an induced draft fan, part of the smoke enters a smoke analyzer through a smoke sampling pipeline, the rest of the smoke enters a wet precipitator, the purified smoke is discharged out of a chimney, a water circulating layer of the water circulating unit can absorb the heat of the high-temperature smoke, a hot water outlet water pool can convey circulating water into the water circulating layer, and the circulating water subjected to heat exchanging flows back to a hot water outlet tank.

Automatic supplementing, air-staging and grate-firing straw bundle combusting boiler

The invention discloses an automatic supplementing, air-staging and grate-firing straw bundle combusting boiler which comprises a boiler body, an air distributing unit, a water circulating unit, a smoke discharging unit and a control unit. In work, a straw bundle is placed on a first combustion chamber through a feed port, an electric heating bar is heated to a certain temperature, then the straw bundle is ignited, the air distributing unit introduces the air heated by an air preheater into an combustion chamber of the boiler body through an air distributing nozzle, ash generated by combustion of the straw bundle falls into a second combustion chamber to continue to be combusted, the high-temperature smoke generated by combustion exchanges heat with the water circulating unit and is then guided out under the effect of an induced draft fan, part of the smoke enters a smoke analyzer through a smoke sampling pipeline, the rest of the smoke enters a wet precipitator, the purified smoke is discharged out of a chimney, a water circulating layer of the water circulating unit can absorb the heat of the high-temperature smoke, a hot water outlet water pool can convey circulating water into the water circulating layer, and the circulating water subjected to heat exchanging flows back to a hot water outlet tank.

Carbon composite, and preparation method and use thereof

Provided are a carbon composite and a preparation method thereof. The preparation method includes: distilling a bio-tar to obtain a distilled substrate; mixing the distilled substrate and a biochar material to obtain a polymerization starting material; polymerizing the polymerization starting material to obtain a polymer; and mixing the polymer with an activator to obtain a mixture and subjecting the mixture to activation to obtain the carbon composite; wherein the distilling is conducted at a temperature of 120° C. to 150° C.; the activator includes sodium bicarbonate, and a mass ratio of the polymer to the activator is in a range of 1:1 to 1:4; and the activation is conducted at an activation temperature of 700° C. to 800° C. in an anoxic atmosphere for 1 h to 2 h, and the activation temperature is obtained by heating at a speed of 5° C./min to 10° C./min.

Three-dimensional carbon-based copolymerization composite, and preparation method and use thereof

Provided are a three-dimensional carbon-based copolymerization composite, and a preparation method and use thereof. The preparation method includes dissolving a hydroxyquinone compound and a diamine compound to obtain a dissolved system, and subjecting the dissolved system to first reaction to obtain first reaction system; mixing the first reaction system and monomer, and subjecting a resulting mixed system to amidation to obtain an amidation reaction system; subjecting a graphitized carbon to first dispersion, ball milling, and second dispersion sequentially to obtain a graphitized carbon dispersion; and mixing the amidation reaction system, the graphitized carbon dispersion, a cross-linking agent, and an initiator, and subjecting a resulting mixture to polymerization to obtain the three-dimensional carbon-based copolymerization composite, wherein a molar ratio of the diamine compound to the hydroxyquinone compound is 1:(2-3); and the monomer comprises a carboxyl group and a double bond in a structure thereof.

Application of tetrahydroquinolone-amide-thiazole compounds

The present disclosure provides an application of tetrahydroquinolone-amide-thiazole compounds with a structure shown in Formula (I) or pharmaceutically acceptable salts or stereoisomers thereof in the preparation of coronavirus Mpro inhibitors. The present disclosure discloses a class of compounds with tetrahydroquinolinone amide thiazole as the core structure being able to effectively inhibit the activity of SARS-CoV-2 Mpro, and the structure is significantly different from any known inhibitor of coronavirus Mpro. The tetrahydroquinolone-amide-thiazole core structure and its derivatives discovered in the present disclosure are expected to become new drugs against coronavirus, which can be used to treat diseases caused by coronavirus. R2 S O 0 R N N R3 H H N R4 O N H 4 (I)