Patent ID: 7041535

Claim:
A method of manufacturing a power module, comprising the steps of: mounting electronic components including at least a heat generating component on one main surface of a wiring substrate and at least one non-heat generating component on a surface opposite the one main surface, with at least one non-heat generating component being in a position other than a position immediately opposite to the position of the heat generating component; forming a curable composition layer containing (A) a thermosetting resin, (B) a thermoplastic resin, (C) a latent curing agent, and (D) an inorganic filler between a heat sink and the wiring substrate on a side of the heat generating component and pressing at least one of the heat sink and the wiring substrate against the other so that a thermally conductive and electrically insulating member is bonded in such a manner as to be deformed complementarily to unevenness in shape and height of the heat generating component; and subsequently forming the thermally conductive and electrically insulating member by allowing the curable composition layer to be cured by heating.