Patent ID: 9559787
Date: 2017-01-31
CPC Classifications: H01L,H04B

Claim:
1. A photocoupling device, comprising: a first semiconductor chip including a first main surface where a first optical element is formed; a first chip mounting part mounted with the first semiconductor chip; a plurality of first leads electrically coupled to the first semiconductor chip; a first light-transmissive resin covering the first optical element; a second semiconductor chip including a second main surface where a second optical element opposing the first optical element is formed; a second chip mounting part mounted with the second semiconductor chip; a plurality of second leads electrically coupled to the second semiconductor chip; a second light-transmissive resin covering the second optical element; a light-transmissive insulating film positioned between the first light-transmissive resin and the second light-transmissive resin; and a sealed part sealing with resin the first semiconductor chip, the first chip mounting part, a part of each of the first leads, the first light-transmissive resin, the second semiconductor chip, the second chip mounting part, a part of each of the second leads, the second light-transmissive resin, and the insulating film, wherein the insulating film includes a body part positioned between the first optical element and the second optical element and a plurality of joining parts joined to the body part, wherein the sealed part includes a first surface positioned on a first chip mounting part side, a second surface positioned opposite to the first surface, a first side surface positioned between the first surface and the second surface, and a second side surface positioned opposite to the first side surface, wherein, out of the joining parts, a first joining part is exposed at the first side surface of the sealed part, and wherein, out of the joining parts, a second joining part is exposed at the second side surface of the sealed part.