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. 03, 2010
Filed:
Feb. 22, 2005
Gregory Pickrell, Carson City, NV (US);
Duane A. Louderback, Zephyr Cove, NV (US);
Peter Guilfoyle, Zephyr Cove, NV (US);
Gregory Pickrell, Carson City, NV (US);
Duane A. Louderback, Zephyr Cove, NV (US);
Peter Guilfoyle, Zephyr Cove, NV (US);
Opticomp Corporation, Zephyr Cove, NV (US);
Abstract
A method of manufacturing a distributed Bragg reflector (DBR) in group III-V semiconductor compounds with improved optical and electrical characteristics is provided. A selected DBR structure is achieved by sequential exposure of a substrate to predetermined combinations of the elemental sources to produce a pair of DBR layers of compound alloys and a graded region including one or more discrete additional layers between the DBR layers of intermediate alloy composition. Exposure durations and combinations of the elemental sources in each exposure are predetermined by DBR design characteristics.