Seoul Opto Device Co., Ltd.

Jae Bin Choi

Hong Jae Yoo

Disclosed is a group III nitride compound semiconductor device having a substrate, buffer layers on the substrate, and a group III nitride compound semiconductor layer on the top layer of the buffer layers. The buffer layers comprises a first buffer layer formed on the substrate and a second buffer layer formed on the first buffer layer. The first buffer layer is made of transition metal nitride, and the second buffer layer is made of nitride of gallium and a transition metal.

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Ansan-si, South Korea

Jae Bin Choi