Photodetector capable of sweeping out unwanted carriers and an o

Details Photodetector capable of sweeping out unwanted carriers and an o Photodetector capable of sweeping out unwanted carriers and an o

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.

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