Method for producing an optocoupler

US4857746A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Werner Kuhlmann · Stephanskirchen, DE
• Werner Spaeth · Holzkirchen, DE
• Guenter Waitl · Regensburg, DE
• Joerg Klann · Thannhausen, DE

Key dates

• Filing date: Sep 28, 1987
• Grant date: Aug 15, 1989
• Expiry date: Sep 28, 2007

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01L2224/16145
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In order to manufacture respectively optocouplers or reflex light barriers particularly efficiently, semiconductor light transmitters and semiconductor light receivers are situated on a single substrate. The optic coupling or optic isolation of light transmitter and light receiver takes place in the substrate. Only then are semiconductor elements separated into discrete units.