Power semiconductor module and method of manufacturing a power semiconductor

摘要

A power semiconductor module, and method for its manufacture, comprising a first housing part having a cutout and a DC voltage load connection apparatus forming a structural unit, wherein the DC voltage load connection apparatus has first and second DC voltage load connection elements. The first DC voltage load connection element has a first leadthrough section arranged in the cutout, and the second DC voltage load connection element has a second leadthrough section arranged in the cutout forming a gap therebetween. The first and second leadthrough sections are sheathed by an elastomer, which fills the gap, is cohesively connected to the first and second leadthrough sections and seals off the first and second leadthrough sections with respect to the first housing part. The inventive power semiconductor module exhibits a high resistance to thermal cycling, and the distance between the DC voltage load connection elements can be configured to be small.

主权项

1. A power semiconductor module comprising:
a substrate; at least one power semiconductor component arranged on said substrate and connected to said substrate; a first housing part which includes a cutout and a DC voltage load connection apparatus forming a structural unit, the DC voltage load connection apparatus having first and second electrically conductive DC voltage load connection elements, each of said first and second electrically conductive DC voltage load connection elements being electrically conductively connected to at least one power semiconductor component; said first DC voltage load connection element including a first external connection section arranged outside said first housing part, a first internal connection section arranged inside said first housing part, and a first leadthrough section arranged in said cutout; said second DC voltage load connection element including a second external connection section arranged outside said first housing part, a second internal connection section arranged inside said first housing part, and a second leadthrough section arranged in said cutout; wherein a gap is formed between said first and second leadthrough sections; and an electrically nonconductive elastomer which sheaths said first and second leadthrough sections, and fills said gap, said elastomer being cohesively connected to said first and second leadthrough sections and being non-cohesively connected to said first housing part; whereby said elastomer seals off said first and second leadthrough sections with respect to said first housing part.