Photo-detector having a uniform output characteristic and fabricating method therefor
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsMasaki Shimoyama, Shuichi Kodama, Kazuhiro Kondo
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Abstract
In a photo-detector, a window pane member for covering a photosensitive semiconductor is selected from among plural samples having light transmittances different from each other in compliance with an intensity of output of the photosensitive semiconductor detected under a constant quantity of light incident on the photosensitive semiconductor, thereby compressing dispersion of outputs in the plural photo-detectors into a small range as a whole.
Claims2
A method for fabricating a photo-detector comprising the steps of:
- mounting a photosensitive semiconductor on a base means and making an electrical connection with a pair of leads;
- preparing a plurality of light-transmitting members having light transmittances different from each other;
- measuring the intensity of the output of said photosensitive semiconductor under a predetermined quantity of light incident on said photosensitive semiconductor;
- selecting one of said light-transmitting members in accordance with said intensity of the output of the photosensitive semiconductor;
- and
- disposing said selected one of the light-transmitting members to cover said photosensitive semiconductor.
A method for fabricating a photo-detector comprising the steps of:
- preparing a plurality of light-transmitting members having light transmittances different from each other;
- measuring the intensity of the output of a photosensitive semiconductor under a predetermined quantity of light incident on said photosensitive semiconductor;
- selecting one of said light-transmitting members in accordance with said intensity of the output of the photosensitive semiconductor;
- mounting said photosensitive semiconductor on a base means and making an electrical connection with a pair of leads;
- and
- disposing said selected one of the light-transmitting members to cover said photosensitive semiconductor.
Dependencies are inferred from the claim text.