The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 27, 1999
Filed:
Aug. 27, 1996
Applicant:
Inventor:
Jochen Gerner, Wiesloch, DE;
Assignee:
Temic Telefunken microelectronic GmbH, Heilbronn, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257 98 ; 257 81 ; 257 91 ; 257 99 ;
Abstract
A light emitting diode for generating preferably green light with improved luminous efficiency. A number of epitaxial layers suitable for the light emission is arranged on a doped semiconductor substrate wafer of GaP. The surface of the epitaxial layers is completely frosted. The light emission from the interior is considerably improved by the frosting. A contact layer structure is placed on the frosted surface for contacting the light emitting diode. The contact layer consists of several partial layers and covers at least a part the frosted surface. There is also a contact layer at the rear of the light emitting diode.