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:
Jan. 05, 1988
Filed:
Aug. 19, 1985
Applicant:
Inventors:
Kevin L McLaughlin, Chandler, AZ (US);
Mark S Birrittella, Phoenix, AZ (US);
Assignee:
Motorola Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
437 24 ; 437 33 ; 437 61 ; 437233 ; 437238 ;
Abstract
Base-collector capacitance is reduced in a semiconductor device by making use of a buried oxide that is self-aligned to an active region of the semiconductor device. Use of the buried oxide provides a means for down-scaling or shrinking of the active device region which in turn increases the speed of the device. In addition, the area above the buried oxide is built up to reduce the resistance in the active region.