Patent ID: 9355941
Filing Date: 2016-05-31
CPC Classification: H01L

Claim Text:
1. A method of manufacturing a semiconductor device comprising the steps of: (a) preparing a lead frame including a chip-mounting portion having a chip-mounting surface, a first lead disposed to be separated from the chip-mounting portion, a second lead disposed to separate the chip-mounting portion and the first lead; (b) mounting a semiconductor chip to the chip-mounting portion via a first conductive bonding material, the semiconductor chip having a front surface to which a first electrode and a second electrode are formed and a back surface, positioned opposite to the front surface, to which a third electrode is formed; (c) electrically connecting the second electrode and the second lead via a metal plate having a chip-connecting portion, a lead-connecting portion, and an intermediate portion positioned between the chip-connecting portion and the lead-connecting portion; (d) electrically connecting the first electrode and the first lead via a wire; and (e) sealing the semiconductor chip, the metal plate, and the wire by a resin such that the first lead, the second lead, and the chip-mounting portion are partly exposed, wherein the metal plate prepared in the step (c) has: wherein forming the metal plate comprises forming a first step portion between the intermediate portion and the chip-connecting portion,