Monolithic opto-coupler for data or energy transmission - has beam detectors arranged in monocrystalline silicon islands dielectrically isolated by inorganic amorphous silicon connection

摘要

The optocoupler is monolithically constructed. In one embodiment, beam detectors (2) are arranged in fully dielectrically isolated monocrystalline silicon islands. The dielectric isolation of the monocrystalline islands (4) consists of a light transparent, inorganic amorphous silicon connection (1) with sufficient thickness for a high isolation voltage. A light emitter may be arranged wholly or partly opposite the islands. ADVANTAGE - Highly complex integrated circuit is produced using simpler assembly technology and maximum adaption to planar technology, with breakdown voltage stability of at least 1000 V.