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:
Apr. 07, 1992
Filed:
Apr. 11, 1991
Applicant:
Inventor:
Ali Salih, Levittown, NY (US);
Assignee:
General Instrument Corp., Hatboro, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
437 31 ; 437 94 ; 437110 ; 437131 ; 437132 ; 148D / ; 148D / ;
Abstract
The switching speed of bipolar power rectifiers is increased by formation of misfit dislocations in the depletion region, spaced from the substrate/epitaxial layer interface, in order to reduce minority carrier lifetime. The misfit dislocations are formed by the introduction of germanium during epitaxy, and are distributed along the silicon/silicon-germanium interface. Preferably, the germanium containing layer is located proximate the center of the depletion region.