Patent ID: 9111922
Filing Date: 2015-08-18
Classification: H01L

Abstract:
1. A semiconductor device comprising: a chip-mounting portion made of a metal having a chip-mounting surface; a 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, and mounted to the chip-mounting portion via a first conductive bonding material; a first lead disposed to be separated from the chip-mounting portion and electrically connected to the first electrode; a second lead disposed to be separated from the chip-mounting portion and the first lead and electrically connected to the second electrode; and a metal plate having a chip-connecting portion electrically connected to the second electrode via a second conductive bonding material, a lead-connecting portion electrically connected to the second lead via a third conductive bonding material, and an intermediate portion positioned between the chip-connecting portion and the lead-connecting portion and electrically connecting the second electrode and the second lead, wherein the metal plate has: the chip-connecting portion, the intermediate portion, and the lead-connecting portion arranged in this order from above the second electrode of the semiconductor chip along a first direction; a first step portion provided between the intermediate portion and the chip-connecting portion; and a lower surface of the intermediate portion positioned at a higher position from the chip-mounting surface than a lower surface of the chip-connecting portion, the first step portion has: a first joint portion for joining the intermediate portion and the chip-connecting portion; a first shear surface formed toward the front surface of the semiconductor chip from a lower end of the first joint portion and connected to the lower surface of the chip-connecting portion; and a second shear surface formed toward a direction opposite to the semiconductor chip from an upper end of the first joint portion and connected to an upper surface of the chip-connecting portion.