Patent ID: 8252632
Filing Date: 2012-08-28
Classification: H01L

Abstract:
1. A manufacturing method of a semiconductor device comprising the steps of: (a) preparing a lead frame having a chip mounting portion and a first lead arranged in a vicinity of the chip mounting portion; (b) supplying the chip mounting portion with an Ag paste; (c) mounting a semiconductor chip over the chip mounting portion via the Ag paste; (d) after the step (c), curing the Ag paste to bond the chip mounting portion and a back surface of the semiconductor chip via the Ag paste; and (e) after the step (d), connecting the first lead and a first pad of the semiconductor chip with a conductor electrically, wherein the Ag paste contains an Ag filler, a first thermosetting resin serving as a base resin, and previously cured spacer resin comprised of a second thermosetting resin.