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:
Jun. 24, 2003
Filed:
Aug. 21, 2001
Applicant:
Inventors:
Eric M. Hall, Santa Barbara, CA (US);
Guilhem Almuneau, Aesch Bei Birmensdorf, CH;
Assignee:
The Regents of the University of California, Oakland, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 2/120 ;
U.S. Cl.
CPC ...
H01L 2/120 ;
Abstract
A distributed Bragg reflector for a vertical cavity surface emitting laser has a semiconductor material system including the elements aluminum, gallium, arsenic, and antimony. Accurate control of the composition of the semiconductor material system must be maintained to result in a distributed Bragg reflector suitable for use in a VCSEL. A method of fabricating the distributed Bragg reflector includes calibrating the incorporation of at least one of the elements into the material system as different semiconductor materials are grown on a substrate.