Patent ID: 9099602
Filing Date: 2015-08-04
Classification: H01L

Abstract:
1. A photocoupler, comprising: a support substrate including an insulating layer, an input terminal, and an output terminal; a first MOSFET provided on the support substrate, the first MOSFET having a first surface having a first electrode pad and a first bonding region; a second MOSFET, having a second surface having a second electrode pad and a second bonding region, provided on the support substrate next to the first MOSFET so that the first and second electrode pads are located on a same side of the substrate; a light receiving element including p-n junction and provided on the first and second bonding regions, the light receiving element having a first surface and a second surface opposite to the first surface, the first surface including a central region, a first outer region located at the first bonding region of the first MOSFET, and a second outer region located at the second bonding region at the second MOSFET, a first electrode being located at the first and second outer regions, a second electrode being located at the first and second outer regions, the second surface being insulated from the first and second electrode pads; a light emitting element connected to the input terminal, the light emitting element having a first surface and a second surface opposite to the first surface, the first surface including a first electrode and a second electrode, the second surface having a light emitting region; a bonding layer configured to bond the light emitting element to the central region of the light receiving element, the bonding layer being transparent and insulative; a first bonding wire coupling the first electrode pad of the first MOSFET to the first and second electrodes of the light receiving element; and a second bonding wire coupling the second electrode pad of the second MOSFET to the first and second electrodes of the light receiving element, wherein the light emitting element overlaps a portion of the light receiving element, the first MOSFET and the second MOSFET.