A laser-activated semiconductor switching device includes a semiconductor assembly
including a multi-layer semiconductor structure having a first principal surface,
and a laser assembly. The laser assembly includes at least one laser device and
is directly connected to said first principal surface. The first principal surface
includes a window area from which a metallization layer and an emitter layer of
the semiconductor assembly are masked, such that laser light emitted from the laser
assembly impinges through the window area directly onto a base layer of said semiconductor
assembly to initiate current conduction by said switching device.