Patent ID: 9209253
Filing Date: 2015-12-08
Classification: H01L

Abstract:
1. A nitride based semiconductor device, comprising: a first metallic junction layer; a Schottky junction layer on the first metallic junction layer; a first group III nitride semiconductor layer on the Schottky junction layer; a first insulating pattern layer on the first group III nitride semiconductor layer, the first insulating pattern layer including curved protrusions; a second group III nitride semiconductor layer laterally grown on the first group III nitride semiconductor layer that is exposed through the first insulating pattern layer, the second group III nitride semiconductor layer including V-shaped groove patterns on a surface; a third group III nitride semiconductor layer directly disposed on the second group III nitride semiconductor layer; a second insulating pattern layer on the third group III nitride semiconductor layer, the second insulating pattern layer including striped patterns; a fourth group III nitride semiconductor layer laterally grown on the third group III nitride semiconductor layer that is exposed through the second insulating pattern layer; a first type group III nitride semiconductor layer on the fourth group III nitride semiconductor layer, the first type group III nitride semiconductor layer being simultaneously doped with aluminum (Al) and silicon (Si); an ohmic junction layer on the first type group III nitride semiconductor layer; a second metallic junction layer on the ohmic junction layer; and a metallic supporting substrate on the second metallic junction layer.