Screening electrodes for optical semiconductor components

US4240087A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Gerhard Krause · Rosenheim, DE
• Werner Spaeth · Holzkirchen, DE

Key dates

• Filing date: Nov 2, 1978
• Grant date: Dec 16, 1980
• Expiry date: Nov 2, 1998

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H20/833

Abstract

An optoelectronic coupler with a semiconductor transmitter and a semiconductor receiver has a transparent conductive screen formed of semiconductor material overlying the active area of at least one of the transmitter and receiver, in the path of optical radiation passing between the transmitter and receiver, and directly electrically connected to a semiconductor zone of the active area, to protect the coupler from changes in its electrical characteristics due to high intensity electric fields.