Patent ID: 6787900
Filing Date: 2004-09-07
Classification: H01L

Abstract:
A semiconductor module mountable on an external heat sink, said semiconductor module comprising:an insulating substrate for said semiconductor module, said insulating substrate including a substrate, a first conductive pattern formed on a first main surface of said substrate which is on the opposite side from said external heat sink, and a second conductive pattern formed on a second main surface of said substrate which is on the same side as said external heat sink and for contact with said external heat sink; and a mounting frame made of metal and having a mounting surface for direct contact with said external heat sink, said mounting frame including a flange along a periphery thereof for engagement with a peripheral part of said insulating substrate at said first main surface, said flange pressing said peripheral part of said insulating substrate toward said external heat sink to force said insulating substrate into pressure contact with said external heat sink, wherein said mounting frame further includes: a first metal plate having said mounting surface, and a second metal plate disposed directly on and in contact with said first metal plate and having a protrusion along a periphery thereof projecting from a periphery of said first metal plate to define said flange.