Semiconductor light receiving element

Details Semiconductor light receiving element Semiconductor light receiving element

1990-02-28

1991-04-23

Mintel, William

Fishing, trapping, and vermin destroying

357 16, 357 58, 437126, 437 22, 437154, 437904, H01L 2714

Patent

active

050103814

ABSTRACT:
A semiconductor light detector for detecting multiple wavelengths of light includes a semiconductor substrate, a plurality of first conductivity type semiconductor layers successively disposed on the semiconductor substrate with increasing energy band gap from the substrate towards a light incident surface of the detector, a first second conductivity type semiconductor region extending from the light incident surface and reaching the first conductivity type layer closest to the surface, and one or more additional second semiconductor regions successively surrounding the first second semiconductor region, reaching the surface and respective first conductivity type semiconductor layers.

REFERENCES:
patent: 4651187 (1987-03-01), Sugimoto et al.
patent: 4684969 (1987-08-01), Taguchi
patent: 4857982 (1989-08-01), Forrest
"Compound Semiconductor Device Handbook", Science Forum Co., Ltd., 1988, p. 609.

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