Patent ID: 6590774
Filing Date: 2003-07-08
Classification: F02P,H01L

Abstract:
An ignition apparatus for an internal combustion engine comprising a single body molded case having an input-output terminal in said molded case, and a semiconductor switching device provided in said molded case and mounted via an electric insulation plate on a heat sink, said molded case providing a single body containing said input-output terminal, said semiconductor switching device, said electric insulation plate and said heat sink,wherein said electric insulation plate comprises beryllia, and wherein there are provided a first solder bonding between said semiconductor switching device and said electric insulation plate, and a second solder bonding between said electric insulation plate and said heat sink, and further wherein the thickness of said first solder and said second solder, respectively, falls within 0.05 mm to 0.2 mm.