Patent ID: 7589970

Claim:
An assembled structure of a power semiconductor device and a heat sink, said assembled structure comprising: the power semiconductor device having a first perforation, a first side and a second side adjacent to said first side; a first insulating member including a first opening and a second opening corresponding to said first perforation and a sidewall defining a receiving portion between said first opening and said second opening, said receiving portion including an inner bottom surface, wherein said sidewall of said first insulating member is substantially in contact with said first side of said power semiconductor device and protruded relative to said second side of said power semiconductor device; a heat sink; and a fastening element including a head portion and a body portion, the distance from said first opening to the inner bottom surface of said receiving portion of said first insulating member substantially being not less than the height of said head portion of said fastening element, wherein said body portion is penetrated through said first opening, said receiving portion, said second opening and said first perforation such that said power semiconductor device is fastened onto said heat sink, and said head portion is received in said receiving portion so as to isolate said head portion of said fastening element from adjacent electronic components.