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:
Sep. 10, 1991
Filed:
Mar. 15, 1990
Applicant:
Inventors:
Kenneth A Costello, Palo Alto, CA (US);
William E Spicer, Stanford, CA (US);
Verle W Aebi, Menlo Park, CA (US);
Assignee:
Intevac, Inc., Santa Clara, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
357 30 ; 357-4 ; 357 16 ; 357-3 ; 357 32 ;
Abstract
An improved transferred electron III-V semiconductor photocathode comprising an aluminum contact pad and an aluminum grid structure that improves quantum efficiency by removing a major obstacle to electrons escaping into the vacuum and controls dark spot blooming caused by overly bright photon emission sources.
Costello, Kenneth. (1991). Transferred electron iii-v semiconductor photocathode (U.S. Patent No. 5047821). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5047821
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile