1984-09-14
1986-05-06
Davie, James W.
357 13, 357 16, H01L 2714, H01L 3100
Patent
active
045875448
ABSTRACT:
The invention relates to an avalanche photodetector having a charge-multiplication region which is spatially separated from the detector surfaces. This photodetector includes an absorptive region, a first region overlying the absorptive region, a second region overlying the first region and having a central zone which is thinner than a peripheral zone and a third region overlying the second region. The high electric field required for avalanche multiplication is then restricted to the portion of the first region adjacent the central zone while the field at the periphery is less than that necessary for avalanche multiplication.
REFERENCES:
patent: 4116733 (1978-09-01), Olsen et al.
patent: 4442444 (1984-04-01), Osaka
patent: 4471370 (1984-09-01), Chen et al.
patent: 4473835 (1984-09-01), Forrest et al.
patent: 4481523 (1984-12-01), Osaka et al.
Nishida et al., Applied Physics Letters 35, 251 (1979).
Olsen et al., Journal of Electronic Materials 9, 977 (1980).
Burke William J.
Cohen Donald S.
Davie James W.
Epps Georgia Y.
Morris Birgit E.
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