Patent ID: 7666710
Filing Date: 2010-02-23
Classification: H01L

Abstract:
1. A method of manufacturing photo couplers, comprising: providing a substrate having receiver lead-frames and transmitter lead-flames, each of the receiver lead-frames having two first pins and a first side, each of the transmitter lead-frames having two second pins and a second side, wherein the first side of each of the receiver lead-frames and the second side of each of the transmitter lead-frames are arranged alternately with a distance and the first pins of each of the receiver lead-frames and the second pins of each of the transmitter lead-frames are arranged transversely outwardly; disposing a light-receiving element on the first side of each of the receiver lead-frames and a light-transmitting element on the second side of each of the transmitter lead-frames respectively; cutting ones of the receiver lead-frames and the transmitter lead-frames from the substrate and flipping the cut ones upside-down; aligning the ones of the receiver lead-frames and the transmitter lead-frames cut from the substrate to another ones of the receiver lead-frames and the transmitter lead-frames remaining on the substrate such that the light-transmitting element on each of the second sides faces to the light-receiving element on each of the first sides; and fastening the ones of the receiver lead-frames and the transmitter lead-frames cut onto the substrate.