Epistar Corporation

Lextar Electronics Corporation

Jui-Yi Chu

Cheng-Ta Kuo

Chun-Kai Wang

Yu-Pin Hsu

Hsin-Hsien Wu

Kuo-Lung Fang

Yi-Chieh Lin

Schang-Jing Hon

Jun-Rong Chen

Hsiu-Mei Chou

Chi-Wen Kuo

Kun-Fu Huang

Wei-Yu Yen

Shih Pu Yang

Tsung-Kuang Chen

The invention provides a light-emitting diode device and a method for fabricating the same. The light-emitting diode device includes a metal substrate. A light-emitting diode structure is bonded on the metal substrate. The light-emitting diode structure includes a first type semiconductor substrate and a second type semiconductor layer. The first type semiconductor layer has a first surface and a second surface opposite to the first surface. The second type semiconductor layer is in contact with the metal substrate. A light-emitting layer is disposed between the first type semiconductor substrate and the second type semiconductor layer. A portion of the second surface and a sidewall adjacent to the second surface are uneven roughened surfaces.

Light-emitting diode device and method for fabricating the same

The present application relates to an opto-electronic device. The opto-electronic device includes an n-cladding layer, a p-cladding layer and a multi-quantum well structure. The multi-quantum well structure is located between the p-cladding layer and the n-cladding layer, and includes a plurality of barrier layers, a plurality of well layers and a barrier tuning layer. The barrier tuning layer is made by doping the barrier layer adjacent to the p-cladding layer with an impurity therein for changing an energy barrier thereof to improve the light extraction efficiency of the opto-electronic device.

Opto-electronic device

The present invention relates to a light emitted diode (LED). The LED includes a metal mirror, a bonding substrate, a distributed bragg reflector (DBR), a buffer layer, and a LED epitaxial structure. The bonding substrate is arranged under the metal mirror. The DBR is arranged on the metal mirror. The buffer layer is arranged on the DBR. The LED epitaxial structure is arranged on the buffer layer.

Light emitted diode

This invention discloses a light-emitting device comprising a semiconductor stack layer having an active layer of a multiple quantum well (MQW) structure comprising alternate stack layers of quantum well layers and barrier layers, wherein the barrier layers comprise at least one doped barrier layer and one undoped barrier layer. The doped barrier layer can improve the carrier mobility of the electron holes and increase the light-emitting area and the internal quantum efficiency of the active layer.

Light emitting device

A light-emitting diode chip structure including a conductive substrate, a semiconductor stacking layer and a patterned seed crystal layer is provided. The conductive substrate has a surface. The surface has a first region and a second region alternately distributed over the surface. The semiconductor stacking layer is disposed on the conductive substrate, and the surface of the conductive substrate faces the semiconductor stacking layer. The patterned seed crystal layer is disposed on the first region of the surface of the conductive substrate and between the conductive substrate and the semiconductor stacking layer. The patterned seed crystal layer separates the semiconductor stacking layer from the first region. The semiconductor stacking layer covers the patterned seed crystal layer and the second region, and is electrically connected to the conductive substrate through the second region. A fabrication method of the light-emitting diode chip structure is also provided.

Light-emitting diode chip structure and fabrication method thereof

A light-emitting diode device (LED) device and manufacturing methods thereof are provided, wherein the LED device comprises a substrate, a first n-type semiconductor layer, an n-type three-dimensional electron cloud structure, a second n-type semiconductor layer, an active layer and a p-type semiconductor layer. The first n-type semiconductor layer, the n-type three-dimensional electron cloud structure, the second n-type semiconductor layer, the active layer and the p-type semiconductor layer are subsequently grown on the substrate.

Growing community of inventors

Hsinchu, Taiwan

Jui-Yi Chu