Light shield for a semiconductor device comprising blackened pho

Details Light shield for a semiconductor device comprising blackened pho Light shield for a semiconductor device comprising blackened pho

1974-12-18

1976-07-13

Larkins, William D.

357 32, 357 54, H01L 2714, H01L 3100

Patent

active

039697517

ABSTRACT:
A light shield for selectively shielding light-sensitive elements in a semiconductor device from incident light comprises an opaque layer of material which is substantially nonreflective to light such as, for example, blackened photoresist, blackened metal, or a plastic containing particles of black carbon.

REFERENCES:
patent: 3535469 (1970-10-01), Miller
patent: 3569997 (1971-03-01), Lehovec
patent: 3581161 (1971-05-01), Cunningham et al.
patent: 3609475 (1971-09-01), Kaposhilin
patent: 3622419 (1971-11-01), London et al.
patent: 3748546 (1973-07-01), Allison
patent: 3771149 (1973-11-01), Collins et al.
patent: 3801880 (1974-04-01), Harada et al.
patent: 3821616, Kravitz

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