Magnetic tunneling junction and fabrication method thereof

A fabrication method of a magnetic tunnel junction includes the steps of: forming a magnetic tunnel junction constructed having a first magnetic layer, a tunnel barrier formed at an upper surface of the first magnetic layer and a second magnetic layer formed at an upper surface of the tunnel barrier; and thermally treating the junction rapidly for 5 seconds ˜10 minutes at a temperature of 200˜600° C. to re-distribute oxygens in the tunnel barrier and make the interface between the tunnel barrier and the magnetic layer to be even. The tunneling magnetoresistance and thermal stability of the magnetic tunnel junction can be improved through the rapid thermal annealing.

Magnetic tunneling junction and fabrication method thereof

A fabrication method of a magnetic tunnel junction includes the steps of: forming a magnetic tunnel junction constructed having a first magnetic layer, a tunnel barrier formed at an upper surface of the first magnetic layer and a second magnetic layer formed at an upper surface of the tunnel barrier; and thermally treating the junction rapidly for 5 seconds~10 minutes at a temperature of 200~600° C. to re-distribute oxygens in the tunnel barrier and make the interface between the tunnel barrier and the magnetic layer to be even. The tunneling magnetoresistance and thermal stability of the magnetic tunnel junction can be improved through the rapid thermal annealing.

HUMAN BODY WEARABLE ANTENNA HAVING DUAL BANDWIDTH

Disclosed is a human body wearable dual band antenna. The disclosed human body wearable antenna comprises: a substrate; a zeroth-order resonance antenna formed on the bottom of the substrate, for receiving a signal from a wireless device which is implanted in a human body; and a micro strip antenna formed on the top of the substrate, for transmitting the signal to a wireless device which is external to the human body. The dual band human body wearable antenna according to the present invention can relay communications between the wireless device which is implanted in the human body and the wireless device which is external to the human body. 1. A wearable antenna comprising:a substrate;a zeroth order resonance antenna formed on a lower part of the substrate, the zeroth order resonance antenna configured to receive a signal from a wireless device implanted in a body; anda microstrip antenna formed on an upper part of the substrate, the microstrip antenna configured to transmit the signal to a wireless device external to the body.2. The wearable antenna of claim 1 , wherein the zeroth order resonance antenna comprises a radiator and a ground plane claim 1 , the radiator formed on a lower part of the substrate claim 1 , the ground plane formed on a lower part of the substrate surrounding the radiator.3. The wearable antenna of claim 1 , further comprising a short-circuit column inserted in a via hole penetrating the upper part and the lower part of the substrate claim 1 , the short-circuit column electrically joined with a first feed line of the microstrip antenna formed on the upper part of the substrate and with a second feed line of the zeroth order resonance antenna formed on the lower part of the substrate.4. The wearable antenna of claim 3 , wherein the zeroth order resonance antenna comprises:a radiator formed on a lower part of the substrate;a ground plane formed on a lower part of the substrate; andat least one inductor joined with the radiator and the ground ...

Fabrication method for a magnetic tunneling junction

Magnetic tunneling junction and fabrication method thereof

A fabrication method of a magnetic tunnel junction includes the steps of: forming a magnetic tunnel junction constructed having a first magnetic layer (15), a tunnel barrier (16) formed at an upper surface of the first magnetic layer and a second magnetic layer (17) formed at an upper surface of the tunnel barrier; and thermally treating the junction rapidly for 5 seconds ∼10 minutes at a temperature of 200∼600°C to re-distribute oxygens in the tunnel barrier and make the interface between the tunnel barrier and the magnetic layer to be even. The tunneling magnetoresistance and thermal stability of the magnetic tunnel junction can be improved through the rapid thermal annealing.

Manufacturing method for a magnetic tunnel junction

Herstellungsverfahren für einen magnetischen tunnelübergang

Human body wearable antenna having dual bandwidth

Disclosed is a human body wearable dual band antenna. The disclosed human body wearable antenna comprises: a substrate; a zeroth-order resonance antenna formed on the bottom of the substrate, for receiving a signal from a wireless device which is implanted in a human body; and a micro strip antenna formed on the top of the substrate, for transmitting the signal to a wireless device which is external to the human body. The dual band human body wearable antenna according to the present invention can relay communications between the wireless device which is implanted in the human body and the wireless device which is external to the human body.