Patent ID: 8335086
Filing Date: 2012-12-18
Classification: H01L,H05K

Abstract:
1. A semiconductor module, comprising: a module board; an electronic component placed on the module board; and a top panel that is disposed to face the module board with the electronic component therebetween, and that is adhered to the electronic component with adhesive, wherein the top plate includes a resin layer and a metal layer, and also has an insulating characteristic, wherein said metal layer includes a metal layer formed at a front side of the resin layer and a metal layer formed at a rear side of the resin layer, wherein the top panel further includes an insulating layer formed on the resin layer so as to cover the metal layer formed at the front side of the resin layer and an insulating layer formed on the resin layer so as to cover the metal layer formed at the rear side of the resin layer, and wherein warp which is caused to occur in the top panel under temperature change due to difference in coefficient of thermal expansion between the resin layer and the metal layer formed at the front side of the resin layer is cancelled by warp which is caused to occur in the top panel under temperature change due to difference in coefficient of thermal expansion between the resin layer and the metal layer formed at the rear side of the resin layer.