Patent ID: 6431259
Filing Date: 2002-08-13
Classification: H01L

Abstract:
A spring clip for fixing a heat sink having a step-shaped first spring clip receptacle with a tooth to a semiconductor module having a basin-shaped second spring clip receptacle with a bearing area and a curb, comprising:a spring clip body, including: a smooth end face adapted to the bearing area of the basin-shaped second spring clip receptacle; a first bending edge from which said spring clip body bends upward at an obtuse angle with respect to said smooth end face such that said spring clip body does not bear on the curb of the basin-shaped second spring clip receptacle during assembly; a section beginning from said first bending edge and having a length corresponding approximately to that of said smooth end face; a second bending edge at an end of said section, from which said spring clip body bends downward at an angle of approximately 90Â°; a clip arc bending downward from said second bending edge and having a length adapted to a distance between the basin-shaped second spring clip receptacle of the semiconductor module and the step-shaped first spring clip receptacle of the heat sink; and a third bending edge at an end of said clip arc, from which said spring clip body bends upward toward said smooth end face at an angle of approximately 90Â°.