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:
Aug. 18, 1998
Filed:
Nov. 27, 1996
Applicant:
Inventors:
Umesh Kumar Mishra, Santa Barbara, CA (US);
Steven P DenBaars, Santa Barbara, CA (US);
David Joseph Kapolnek, Santa Barbara, CA (US);
Assignee:
The Regents of the University of California, Oakland, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
438 35 ; 438 44 ;
Abstract
A method and apparatus for producing full-color luminescent monolithic semiconductor devices. Each portion of the device is bandgap engineered by using different dopants to change the direct bandgap of selected areas of each region, thereby allowing that region to produce different wavelengths of emitted light at high efficiencies.