Uv light sensor with stray light suppression, and a method for detecting uv light

The invention relates to a UV light sensor produced in a CMOS method, comprising a substrate that has a surface, one or more sensor elements that detect radiation and are designed in said substrate, at least one passivation layer arranged over said substrate surface, and a functional layer that is arranged over said passivation layer and designed in the form of at least one filter. The problem addressed by the invention of providing a UV light sensor which is sensitive exclusively within the UV wavelength range is solved, in terms of arrangement, by means of filters designed directly on a planar passivation layer, and stray light suppressing means around said at least one sensor element and/or around the UV light sensor. In terms of the method, the problem is solved by measuring two output signal from at least two photo diodes fitted with different filters, and by determining a mathematical relationship between the two output signals.

含有輻射不透明劑的功能單元

本發明涉及一種功能單元，此功能單元具有一或多個功能元件及一個帶有表面的印刷電路板基板。本發明的目的是為功能單元提出能夠抑制要測量之波長範圍之外的干擾輻射的措施，以使功能單元對於要測量之波長範圍之外的其他波長範圍不具備敏感性，因此測量值不會因為干擾輻射而產生誤差，為達到上述目的，本發明提出的方法是將功能單元埋在印刷電路板基板內，或是將功能單元設置在印刷電路板基板上，並以輻射不透明劑將功能單元及/或該至少一個功能元件環繞住。

Uv-licht-sensor mit streulichtunterdrückung und verfahren zur detektion von uv-licht