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:
Mar. 19, 2002
Filed:
Dec. 28, 1998
Applicant:
Inventors:
Michael S. Carroll, Orlando, FL (US);
Yih-Feng Chyan, Orlando, FL (US);
Samir Chaudhry, Orlando, FL (US);
Tony G. Ivanov, Orlando, FL (US);
Robert W. Dail, Orlando, FL (US);
Alan S. Chen, Windermere, FL (US);
Assignee:
Agere Systems Guardian Corp., Orlando, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 2/976 ; H01L 2/994 ;
U.S. Cl.
CPC ...
H01L 2/976 ; H01L 2/994 ;
Abstract
A bipolar vertical PNP transistor compatible with CMOS processing and useful in a complementary BiMOS structure is characterized in that it is devoid of an epitaxial layer and employs a high-energy implanted phosphorus layer to provide N-type substrate isolation.