Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1992-05-22
1994-03-29
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
257187, 257290, 257459, H01J 4014, H01L 2714
Patent
active
052987396
ABSTRACT:
A light absorbing layer is formed in a photodetector that receives and detects light guided therein. Carriers are generated in the light absorbing layer in response to the guided light. Unwanted carriers likely to be generated in regions other than the light absorbing layer when light is guided into the photodetector are swept out by a carrier sweeping arrangement to improve the time response and light-current characteristics of the photodetector.
REFERENCES:
patent: 3492549 (1970-01-01), Janning
patent: 3993963 (1976-11-01), Logan et al.
patent: 4553317 (1985-11-01), Sakaki et al.
patent: 4794609 (1988-12-01), Hana et al.
patent: 4879470 (1989-11-01), Sugawa et al.
patent: 4990990 (1991-02-01), Albrecht et al.
patent: 5027177 (1991-06-01), Vasudev
patent: 5109444 (1992-04-01), Habda et al.
Hiroki Tamayo
Nojiri Hidetoshi
Allen Stephone B.
Canon Kabushiki Kaisha
Nelms David C.
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