Patent ID: 7230831
Filing Date: 2007-06-12
Classification: H01L

Abstract:
1. A heat sink for surface-mounted semiconductor devices on a main circuit board of an electronic module including a surface-mounted semiconductor device, the heat sink comprising a three-dimensionally structured thermally conductive plate with a press-on region and with snap-action hooks, the snap-action hooks being resiliently connected to the press-on region of the heat sink and being configured for latching, with pressure generation of the press-on region onto a rear side of the surface-mounted semiconductor device, into corresponding passage openings of the circuit board, the snap-action hooks further comprising limbs including stop corners that limit the engagement of the snap-action hooks with the passage openings of the circuit board, and a plastically deformable thermally conductive composition disposed on the heat sink and being arranged to form an intermediate layer between the rear side of the surface-mounted semiconductor device and the press-on region of the heat sink.