Epistar Corporation

Formosa Epitaxy Incorporation

Yi-Chao Lin

Chun-Ju Tun

Cheng-Huang Kuo

Chen-Fu Chiang

Jai-Tai Kuo

Chang-Hseih Wu

Sheng-Bo Wang

Jia-Tay Kuo

Chang-Hsieh Wu

Yao-Zhong Liu

Chao-Kai Chang

A light emitting apparatus includes a housing, a connector, a light source, a control module board, and an antenna. The housing includes an inner space. The light source is located in the inner space. The control module board is located in the connector, wherein an accommodation space is formed by the housing and the control module board. The antenna is located in the accommodation space.

Light emitting apparatus having antenna located in accommodation space formed by housing and control module

A light-emitting device includes a current source module having a first transistor, a first voltage control module providing a negative voltage and a second voltage control module having a second transistor. The second voltage control module is electrically connected to the current source module and the first voltage control module.

Light-emitting device

A compound semiconductor device is disclosed. The compound semiconductor device comprises a substrate having at least a first doped region and at least a second doped region; a semiconductor layer disposed on the substrate; and a buffer layer located between said substrate and said semiconductor layer; wherein doping conditions of said first doped region and said second doped region are different from each other; wherein said semiconductor layer has different thicknesses on locations corresponding to said first doped region and said second doped region respectively, and is formed as a structure with difference in thickness.

Compound semiconductor device and method of fabricating the same

A compound semiconductor device and method of fabricating the same according to the present invention is disclosed. The compound semiconductor device comprises a substrate having at least a first doped region and at least a second doped region, and a semiconductor layer disposed on the substrate, wherein doping conditions of said first doped region and said second doped region may be different from each other.

Growing community of inventors

Taoyuan County, Taiwan

Yi-Chao Lin