A surface mounting device incorporating a high power RF semiconductor transistor comprises a common lead plane, an input lead plane, a collector lead plane, a transistor die electrically and thermally connected to the collector lead plane, bonding wires for connecting emitters and bases of the transistor...http://www.google.fr/patents/US5075759?utm_source=gb-gplus-shareBrevet US5075759 - Surface mounting semiconductor device and method
