Patent ID: 9153683
Filing Date: 2015-10-06
Classification: H01L

Abstract:
1. A semiconductor device comprising: a substrate having a base layer, a buffer layer formed over the base layer, and a compound semiconductor layer formed over the buffer layer, a first transistor with a channel being formed in the compound semiconductor layer and having a drain, a gate electrode, and a source, the drain, the gate electrode, and the source being arranged with respect to each other along a first direction, and a buried electrode extending through a thickness of the compound semiconductor layer such that an end portion of the buried electrode protrudes into the buffer layer, at least a portion of the buried electrode being arranged on a side of the gate electrode in the first direction opposite to the source, and a connection member electrically connecting the buried electrode and the source, wherein a Schottky junction is formed at a lateral sidewall of the buried electrode contacting the compound semiconductor layer.