Patent ID: 7622776
Filing Date: 2009-11-24
Classification: H01L

Abstract:
1. A semiconductor device comprising: a substrate including a compound semiconductor; a semiconductor layer formed on a surface of the substrate; a plurality of gate electrodes formed on the semiconductor layer; a plurality of source electrodes formed on the semiconductor layer; a plurality of drain electrodes formed on the semiconductor layer; a plurality of via holes, each of which is configured to extend from a rear surface of the substrate through the semiconductor layer to each of a rear side of the plurality of source electrodes; a ground electrode formed on an inner wall of the plurality of via holes and on a rear surface of the substrate, the ground electrode connecting to predetermined of the plurality of source electrodes; and a first air bridge interconnection formed on surface sides of the plurality of source electrodes, the first air bridge connecting to the predetermined of the plurality of source electrodes on surface sides of the predetermined of the plurality of source electrodes.