Patent ID: 8748995

Claim:
A nitride semiconductor device, comprising: a nitride semiconductor multilayer formed on a substrate, and including an active region surrounded by an isolation region; a first ohmic electrode and a second ohmic electrode, each having a finger-like structure and formed above the active region to be spaced apart from each other; a first insulating film covering the first and second ohmic electrodes, and having a first opening exposing an upper surface of the first ohmic electrode, and a second opening exposing an upper surface of the second ohmic electrode; a first electrode interconnect formed on the first ohmic electrode in contact with the first ohmic electrode in the first opening, and having a same longitudinal direction as the first ohmic electrode; a second electrode interconnect formed on the second ohmic electrode in contact with the second ohmic electrode in the second opening, and having a same longitudinal direction as the second ohmic electrode; a second insulating film covering the first and second electrode interconnects and having a first via exposing an upper surface of the first electrode interconnect; and a first metal layer formed above the active region with the second insulating film interposed therebetween, and coupled to the first electrode interconnect, wherein in a short direction of the first electrode interconnect, a width of the first ohmic electrode is smaller than a width of the first via at a lower end.