Photo coupler

Details Photo coupler Photo coupler

1976-01-26

1977-01-04

Edlow, Martin H.

357 17, 357 55, 357 68, H01L 3112

Patent

active

040018598

ABSTRACT:
A photo coupler comprises a multilayer insulating substrate having a cavity on a predetermined portion and a first conductive layer at the bottom of the cavity and a second conductive layer on one surface of the insulating substrate. A light emitting diode is disposed in the cavity with a substantial light emitting zone thereof being in the cavity and is electrically connected to the first conductive layer. A photo responsive device is placed above the cavity on the substrate with the photo sensitive surface of the device facing the light emitting diode and being electrically connected to the second conductive layer.

REFERENCES:
patent: 3436548 (1969-04-01), Biard
patent: 3486029 (1969-12-01), Barrett
patent: 3535532 (1970-10-01), Merryman
patent: 3636358 (1972-01-01), Groshurtz
patent: 3699407 (1972-10-01), Gurtler
patent: 3728593 (1973-04-01), Coleman
patent: 3748480 (1973-07-01), Coleman
patent: 3881113 (1975-04-01), Rideout
patent: 3925801 (1975-12-01), Haitz
patent: 3946423 (1976-03-01), Augustine

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