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:
Jul. 08, 1986
Filed:
Aug. 30, 1982
Applicant:
Inventors:
Clyde G Bethea, Plainfield, NJ (US);
Federico Capasso, Westfield, NJ (US);
Albert L Hutchinson, Piscataway, NJ (US);
Barry F Levine, Livingston, NJ (US);
Won-Tien Tsang, New Providence, NJ (US);
Assignee:
AT&T Bell Laboratories, Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 30 ; 357 16 ; 357 90 ;
Abstract
A photodetector having a graded bandgap region is an ultrahigh speed photodetector when operated at zero bias.