Optically transmissive screening electrode

Details Optically transmissive screening electrode Optically transmissive screening electrode

H - Electricity

01

L

345/27

H01L 31/0256 (2006.01) H01L 33/00 (2006.01)

Patent

CA 1080837

ABSTRACT In synthetic resin-sealed optocouplers, undesired field effects occur when high voltages are connected between the transmitter and the receiver. Such field effects can be eliminated by the provision of optically transmissive screening electrodes on the oxide frame of the collector-base diode and the base-emitter diode. As screening electrode material it is advisable to use polysilicon in a layer thickness such that the reflection at this layer of the optical radiation employed is minimised.

265318

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