Patent ID: 9728478
Date: 2017-08-08
CPC Classifications: H01L

Claim:
1. A method of manufacturing a resin-encapsulated semiconductor device including a first resin encapsulated body and a second resin encapsulated body, the method comprising: forming a plurality of inner wiring lines on one main surface of a substrate; forming an external terminal on a part of a surface of at least one inner wiring line of the plurality of inner wiring lines on a side opposite to the substrate; connecting electrically a first semiconductor element and the plurality of inner wiring lines to each other; encapsulating, in a first resin, the one main surface side of the substrate on which the plurality of inner wiring lines, the external terminal, and the first semiconductor element are arranged; grinding a surface of the first resin opposite to a surface on which the first resin is in contact with the substrate, to thereby expose a rear surface of the external terminal and a surface of the first semiconductor element opposite to a face side thereof; opening another main surface of the substrate except for edge portions thereof, to thereby expose the plurality of inner wiring lines and the first resin; connecting electrically a second semiconductor element and the plurality of inner wiring lines to each other via a metal body; encapsulating, in a second resin, the second semiconductor element, the metal body, and the plurality of inner wiring lines to integrally form the first resin and the second resin so as to be in intimate contact with each other, to thereby form a resin encapsulated body; and separating the resin encapsulated body into individual resin-encapsulated semiconductor devices.