Patent ID: 8816399
Filing Date: 2014-08-26
Classification: H01L

Abstract:
1. A semiconductor device, comprising: an electron transit layer that is formed on a substrate and formed of a group III nitride-based compound semiconductor; an electron supply layer that is formed on the electron transit layer and formed of a group III nitride-based compound semiconductor having a higher band gap energy than the electron transit layer; a field plate layer that is formed on the electron supply layer, is formed of a non-p-type group III nitride-based compound semiconductor, and has a lower band gap energy than the electron supply layer; a first electrode that is formed so as to form an ohmic contact with a two-dimensional electron gas layer generated in the electron transit layer at an interface between the electron transit layer and the electron supply layer; and a second electrode that is formed so as to form a Schottky contact with the two-dimensional electron gas layer, wherein the second electrode forms an ohmic contact, at a side wall of the field plate layer, with two-dimensional hole gas generated in the field plate layer at an interface between the field plate layer and the electron supply layer.