Patent ID: 7652358
Filing Date: 2010-01-26
Classification: H01L,H05K

Abstract:
1. A semiconductor device including a main substrate and one or more sub substrates, the semiconductor device comprising: first heat generating devices mounted on the sub substrates; sub-substrate heatsinks mounted to the first heat generating devices; and a main-substrate heatsink mounted to the main substrate; wherein the sub-substrate heatsinks and the main-substrate heatsink are secured to each other, such that the sub substrates and the main substrate are positioned orthogonally to each other; and the sub-substrate heatsinks have an L-shaped cross-sectional area, are mounted, at their one end portions, to the first heat generating devices such that the one end portions are parallel to the sub substrates and, also, are secured, at the other end portions, to the main-substrate heatsink.