Silicon photosensor with optical thin film filter

Details Silicon photosensor with optical thin film filter Silicon photosensor with optical thin film filter

1975-03-31

1976-12-07

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

350166, 357 30, H01J 3912

Patent

active

039964612

ABSTRACT:
Disclosed is silicon photodiode having a multilayer thin film optical filter deposited directly on the detecting surface thereof. The multilayer filter is an interference type filter designed to limit the normal response of a silicon photodiode so that its spectral response is essentially the same as that of the human eye. The multilayer filter is applied to the diode during fabrication using low cost mass production techniques. The multilayer filter materials are very durable and provide excellent passivation and environmental protection for the diode surface.

REFERENCES:
patent: 3247392 (1966-04-01), Thelan
patent: 3348074 (1967-10-01), Diemer
patent: 3528726 (1970-09-01), Austin
patent: 3649359 (1972-03-01), Apfel et al.
patent: 3697153 (1972-10-01), Zycha
patent: 3759604 (1973-09-01), Thelan
patent: 3781090 (1973-12-01), Sumita

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