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:
Mar. 12, 1991
Filed:
Mar. 17, 1989
Applicant:
Inventors:
William D Goodhue, Chelmsford, MA (US);
Robert H Rediker, Watertown, MA (US);
Donald E Bossi, Cambridge, MA (US);
Assignee:
Massachusetts Institute of Technology, Cambridge, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
437129 ; 437107 ; 437138 ; 437145 ; 357 17 ;
Abstract
A method and apparatus for forming tapered thickness and material content of III-V material, or alloys thereof, in particular GaAs and AlGaAs, by gradient thermal heating of substrates during epitaxial growth and the optoelectronic structures formed thereby.
Goodhue, William. (1991). Method for forming tapered laser or waveguide optoelectronic structures (U.S. Patent No. 4999316). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4999316
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile