Invention Grant
- Patent Title: LED with current confinement structure and surface roughening
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Application No.: US11983515Application Date: 2007-11-09
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Publication No.: US08410490B2Publication Date: 2013-04-02
- Inventor: Steven P. Denbaars , Shuji Nakamura , Max Batres
- Applicant: Steven P. Denbaars , Shuji Nakamura , Max Batres
- Applicant Address: US NC Durham
- Assignee: Cree, Inc.
- Current Assignee: Cree, Inc.
- Current Assignee Address: US NC Durham
- Agency: Myers Bigel Sibley & Sajovec, P.A.
- Main IPC: H01L27/15
- IPC: H01L27/15

Abstract:
An LED having a p-type layer of material with an associated p-contact, an n-type layer of material with an associated n-contact and an active region between the p-type layer and the n-type layer, includes a confinement structure that is formed within one of the p-type layer of material and the n-type layer of material. The confinement structure is generally aligned with the contact on the top and primary emission surface of the LED and substantially prevents the emission of light from the area of the active region that is coincident with the area of the confinement structure and the top-surface contact. The LED may include a roughened emitting-side surface to further enhance light extraction.
Public/Granted literature
- US20080061311A1 Led with current confinement structure and surface roughening Public/Granted day:2008-03-13
Information query
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