Patent ID: 8593817
Filing Date: 2013-11-26
Classification: H01L,H02M,Y10T

Abstract:
1. A power semiconductor module for use in a converter, which has a rectifier circuit and an inverter circuit, comprising: a housing; a first power semiconductor chip, which is a component part of the rectifier circuit and has a first semiconductor body with an upper chip metallization and a lower chip metallization; a second power semiconductor chip, which is a component part of the inverter circuit and has a second semiconductor body with an upper chip metallization and a lower chip metallization; and at least one ceramic substrate; wherein the first power semiconductor chip and the second power semiconductor chip are arranged in the housing; wherein the upper chip metallization of the first power semiconductor chip is adjoined by an aluminum-based bonding wire with an aluminum fraction of at least 99% by weight aluminum; wherein the upper chip metallization of the second power semiconductor chip is adjoined by a copper-based bonding wire with a copper fraction of at least 99% by weight copper; and wherein the lower chip metallization of the first power semiconductor chip is adjoined directly by a fusion soldering layer or the lower chip metallization of the second power semiconductor chip is adjoined directly by one of the following: a silver-containing sintering layer; an adhesive bonding layer or a diffusion soldering layer.