Patent ID: 7005739

Claim:
Power semiconductor module comprising at least one electrically conductive base plate, an electrically conductive cover plate, stiff module housing elements and a plurality of semiconductor chips, said semiconductor chips being electrically connected by means of first main electrodes to the at least one base plate, said semiconductor chips being electrically connected by means of second main electrodes and via flexible, compressible contact elements to the cover plate, said cover plate being attached to said stiff module housing elements, forming a module housing, said stiff module housing elements limiting the compression of the flexible contact elements, wherein the power semiconductor module comprises at least one preassembled and fully testable submodule with a base plate and a group of several of said semiconductor chips, said semiconductor chips being arranged on said base plate of said submodule, said at least one base plate of the at least one submodule is moveable towards the cover plate.