Photo-coupler semiconductor device and method of manufacturing the same

摘要

A photo-coupler semiconductor device includes a semiconductor light emitter and a semiconductor light detector coupled optically with each other through an optical guide. A portion of the optical guide close to the semiconductor light detector is made of glass. The glass portion of the optical guide is brought into intimate contact with a glass layer which is formed on a light sensitive region of the semiconductor light detector. The intimate contact is made by melting the glass portion on the glass layer.