Patent ID: 6369332
Filing Date: 2002-04-09
Classification: H01L,H05K

Abstract:
A metal-base multilayer circuit substrate having a first circuit conductor layer on one side of a circuit substrate, and a second circuit conductor layer on the other side of said circuit substrate, which metal-base multilayer circuit substrate comprises a metal plate and said circuit substrate bonded thereon through the side containing the first circuit conductor layer by a first insulating adhesive layer containing at least one member selected from the group consisting of metal oxides and metal nitrides,wherein said metal plate is an outermost layer of said multilayer circuit substrate, and said metal plate has a thickness of 0.5 to 3 mm, and wherein the first insulating adhesive layer is selected such that the heat resistance between said metal plate and the second circuit conductor layer is at most 2.5Â°C./W.