Heat sink for surface-mounted semiconductor devices and mounting method

摘要

A heat sink for surface-mounted semiconductor devices is provided on a superordinate circuit board of an electronic module. The heat sink includes a three-dimensionally structured thermally conductive plate with a press-on region and snap-action hooks. The snap-action hooks are arranged approximately at right angles with respect to the press-on region and are spring-elastically connected to the press-on region of the heat sink via a spring-elastic connecting region of the heat sink. The snap-action hooks engage with edge regions of a thermally conductive coupling plate with the press-on region generating pressure. The coupling plate is fixed to a rear side of a semiconductor chip of the surface-mounted semiconductor device.