Patent ID: 9633984
Date: 2017-04-25
CPC Classifications: H01L

Claim:
1. A semiconductor module comprising: a first semiconductor element provided with a first light receiving circuit and a first output circuit; a second semiconductor element provided with a second light receiving circuit and a second output circuit; a first light emitting element electrically connected to the second output circuit and mounted on the first semiconductor element such that first light emitted from the first light emitting element is received by the first light receiving circuit; a second light emitting element electrically connected to the first output circuit and mounted on the second semiconductor element such that second light emitted from the second light emitting element is received by the second light receiving circuit; a first insulator interposed between the first semiconductor element and the first light emitting element, the first insulator being pervious to the first light; a second insulator interposed between the second semiconductor element and the second light emitting element, the second insulator being pervious to the second light; a first bonding resin provided between the first light emitting element and the first insulator as well as between the first insulator and the first semiconductor element, the first bonding resin being pervious to the first light; and a second bonding resin provided between the second light emitting element and the second insulator as well as between the second insulator and the second semiconductor element, the second bonding resin being pervious to the second light, wherein an inner creepage distance along a thing interposed between the first semiconductor element and the first light emitting element is 1 mm or more.