Patent ID: 8928003
Filing Date: 2015-01-06
Classification: H01L

Abstract:
1. A nitride semiconductor device comprising: a substrate; a buffer layer that is formed on the substrate; an electron traveling layer that is formed on the buffer layer and is formed of a nitride compound; an electron supplying layer that is formed on the electron traveling layer, and whose band gap energy is different than the electron traveling layer, and that is formed from at least one layer; a recess portion that is formed in a region from a surface of the electron supplying layer at least to the electron supplying layer; a source electrode and a drain electrode that are formed on the electron supplying layer at positions opposing one another across the recess portion; a gate insulating film that is formed from the recess portion over a surface of the electron supplying layer, so as to cover the recess portion interior; a gate electrode that is formed on the gate insulating film that is within the recess portion; and an electrode for carrier transport that is formed between the gate electrode and the drain electrode, and is connected to the source electrode, and is for transporting carrier to the source electrode.