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:
Oct. 14, 1986
Filed:
Apr. 30, 1984
Applicant:
Inventors:
Wenpeng Chen, Silver Spring, MD (US);
Norman E Byer, Columbia, MD (US);
Assignee:
Martin Marietta Corporation, Bethesda, MD (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
3311 / ; 331 66 ; 357 30 ;
Abstract
A semiconductor device is optically phase-locked by utilizing (1) the Burstein shift in differently doped semiconductor layers and injecting light having an energy level lower than the absorption edge of the heavily doped layer in which optical absorption is not desired and higher than the more lightly doped region where it is desired; and (2) the internal photoemission and injecting light having an energy level lower than the band gap of the semiconductor.