Patent · US Active

LED with surface roughening

US8772792B2 · kind B2 · utility

0Cited by

63References

21Claims

0Family size

Assignee

Cree, Inc. · US

Inventors

Steven P. DenBaars · Goleta, US
Shuji Nakamura · Goleta, US
Max Batres · Lompoc, US

Key dates

Filing date	Aug 23, 2013
Grant date	Jul 8, 2014
Priority date	—
Expiry date	Aug 23, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/835

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 roughened emitting-side surface to further enhance light extraction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.