Patent ID: 11973064
Assignee: ROBERT BOSCH GMBH
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A semiconductor power module, comprising:
a first power transistor and a second power transistor that are situated in parallel between a first collector strip conductor and a first emitter strip conductor, a first connection surface of each of the first and second power transistors being electroconductively connected to the first collector strip conductor, a second connection surface of each of the first and second power transistors being electroconductively connected to the first emitter strip conductor, so that a current flowing between the first collector strip conductor and the first emitter strip conductor is divided between the first and second power transistors when the first and second power transistors are each conductively connected via an applied control voltage, a first external power contact being directly contacted with the first collector strip conductor at a first contact area, a second external power contact being contacted with the first emitter strip conductor at a second contact area via a first connecting element, and the second contact area being positioned mechanically asymmetrically between the first and second power transistors connected to the first emitter strip conductor in such a way that an electrical symmetry with identical effective control voltages results at the first and second power transistors;
wherein a heat dissipation system that includes an electrically insulating intermediate layer is situated in an area of the second external power contact, the electrically insulating intermediate layer being integrally joined to the first connecting element via a first solder layer and integrally joined to the first collector strip conductor via a second solder layer, the electrically insulating intermediate layer forming an electrically insulated heat dissipation path between the first connecting element and the first collector strip conductor, which dissipates heat of the second external power contact.