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. 01, 1981
Filed:
Sep. 07, 1979
Applicant:
Inventors:
Klaus J Bachmann, Piscataway, NJ (US);
Charles T Ryan, Fishkill, NY (US);
Assignee:
Bell Telephone Laboratories, Incorporated, Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 30 ; 357 15 ; 357 61 ;
Abstract
Opto-electronic devices such as photodetectors have been made based on bulk crystals of Ga.sub.x In.sub.1-x P.sub.y As.sub.1-y. These bulk crystals have high purity, e.g., less than 10.sup.16 carriers/cm.sup.3 and low defect densities, e.g., less than 10.sup.6 cm.sup.-2. The properties of these crystals lead to photodetectors with good quantum efficiencies.