Patent ID: 7242582
Filing Date: 2007-07-10
Classification: H01L

Abstract:
1. A semiconductor module mounting structure comprising a cardlike semiconductor module, heat receiving members, metallic radiator gaps, and sealing resin gaps, wherein said cardlike semiconductor module comprises a semiconductor chip, a sealing resin accommodating said semiconductor chip and having two principal surfaces substantially parallel to each other, and metallic radiator plates having flat heat dissipating surfaces exposed from the principal surfaces of said sealing resin and fixed on central regions of said principal surfaces of said sealing resin; said heat receiving members have heat receiving surfaces bonded to said heat dissipating surfaces of said metallic radiator plates directly or via insulating sheets having electrical insulating properties, to absorb heat from said heat dissipating surfaces of said metallic radiator plates; said metallic radiator gaps are filled with thermal conductive grease and are positioned between said heat dissipating surfaces of said metallic radiator plates and said heat receiving members or said insulating sheets; and said sealing resin gaps are filled with thermal conductive grease and are positioned between said principal surfaces of said sealing resin and said heat receiving members or said insulating sheets at regions surrounding said metallic radiator plates, wherein said sealing resin gaps have grease reservoirs as enlarged portions larger than said metallic radiator gaps.