Patent ID: 9680053
Date: 2017-06-13
CPC Classifications: H01L

Claim:
1. A nitride semiconductor device comprising: a field effect transistor having: a semiconductor stacked body formed on a substrate, and including a first nitride semiconductor layer, and a second nitride semiconductor layer formed on the first nitride semiconductor layer and having a bandgap wider than that of the first nitride semiconductor layer; a source electrode and a drain electrode formed away from each other on the semiconductor stacked body; and a gate electrode provided between the source electrode and the drain electrode and formed away from the source electrode and the drain electrode; and a pn light-emitting body formed on the semiconductor stacked body, and including a p-type nitride semiconductor layer and an n-type nitride semiconductor layer to emit a light beam having an energy value higher than an electron trapping level existing in the semiconductor stacked body, wherein: the p-type nitride semiconductor layer of the pn light-emitting body is electrically connected to the gate electrode, and functions as a gate of the field effect transistor, the pn light-emitting body has one or more facing surface pairs each consisting of a first surface of the p-type nitride semiconductor layer and a second surface of the n-type nitride semiconductor layer which faces the first surface, and each of the first surface and the second surface in at least one pair of the facing surface pairs is formed so as to extend in a direction perpendicular to an upper surface of the substrate.