Invention Grant
US09130114B2 Vertical light emitting diode (VLED) dice having confinement layers with roughened surfaces and methods of fabrication
有权
垂直发光二极管(VLED)骰子具有粗糙表面的限制层和制造方法
- Patent Title: Vertical light emitting diode (VLED) dice having confinement layers with roughened surfaces and methods of fabrication
- Patent Title (中): 垂直发光二极管(VLED)骰子具有粗糙表面的限制层和制造方法
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Application No.: US13895421Application Date: 2013-05-16
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Publication No.: US09130114B2Publication Date: 2015-09-08
- Inventor: Chen-Fu Chu , Hao-Chung Cheng , Feng-Hsu Fan , Wen-Huang Liu , Chao-Chen Cheng , David Trung Doan , Yang Po Wen
- Applicant: SemiLEDS Optoelectronics Co., Ltd.
- Applicant Address: TW Chu-nan
- Assignee: SemiLEDS Optoelectronics Co., Ltd.
- Current Assignee: SemiLEDS Optoelectronics Co., Ltd.
- Current Assignee Address: TW Chu-nan
- Agent Stephen A. Gratton
- Main IPC: H01L33/22
- IPC: H01L33/22 ; H01L33/06 ; H01L33/04 ; H01L33/00

Abstract:
A vertical light emitting diode (VLED) die includes an epitaxial structure having a first-type confinement layer, an active layer on the first-type confinement layer configured as a multiple quantum well (MQW) configured to emit light, and a second-type confinement layer having a roughened surface. In a first embodiment, the roughened surface includes a pattern of holes with a depth (d) in a major surface thereof surrounded by a pattern of protuberances with a height (h) on the major surface. In a second embodiment, the roughened surface includes a pattern of primary protuberances surrounded by a pattern of secondary protuberances.
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