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1. (WO2018145910) COOLING APPARATUS, ELECTRONICS ASSEMBLY, AND METHOD OF PRODUCING THE SAME

Pub. No.:    WO/2018/145910    International Application No.:    PCT/EP2018/051813
Publication Date: Fri Aug 17 01:59:59 CEST 2018 International Filing Date: Fri Jan 26 00:59:59 CET 2018
IPC: H01L 23/373
H01L 23/473
H01L 21/48
Applicants: MAHLE INTERNATIONAL GMBH
Inventors: ANGERMANN, Hans-Heinrich
SCHMIDGALL, Stefan
Title: COOLING APPARATUS, ELECTRONICS ASSEMBLY, AND METHOD OF PRODUCING THE SAME
Abstract:
The present invention relates to a cooling apparatus (2) for cooling power electronics (3), having a flat tube (5) for carrying a coolant (6), wherein the flat tube (5) consists of an aluminum material. Warping of the cooling apparatus (2) can be prevented if an electrically insulating Al2O3 ceramic plate (9) is attached by brazing to the exterior of the flat tube (5) on an upper face (7) and another is attached by brazing to the exterior of the flat tube (5) on a lower face (8), wherein at least one of the ceramic plates (9) comprises a metal coating (11) on an outer face (10) facing away from the flat tube (5) for mounting components (4) of power electronics (3) by soft soldering, the metal coating consists of Al or Cu and, in the case of a Cu coating, a DCB process is used.