Patent ID: 7235804

Claim:
A method for manufacturing an optocoupler having a plurality of photo-couplers each of which comprises a pair of a light-emitting element and a light-receiving element, the method comprising: a step of mounting a multichannel monolithic chip, which has a plurality of the photo-couplers formed on a single semiconductor substrate, on an insulating substrate, a step of insulating and separating the light-emitting elements and the light-receiving elements by dicing a first cut groove between the light-emitting elements and the light-receiving elements, which constitute the photo-couplers in the chip on the insulating substrate, a step of filling a transparent insulating resin into the first cut groove, a step of dividing the individual photo-couplers by dicing a second cut groove between the adjacent photo-couplers, and a step of connecting each of the light-emitting elements and each of the light-receiving elements to an external terminal using a bonding wire and molding the entirety of the insulating substrate with a light-blocking resin.