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:
Feb. 23, 2010
Filed:
Sep. 13, 2006
Applicants:
Alan S. Chen, Windermere, FL (US);
Mark Dyson, Singapore, SG;
Daniel C. Kerr, Oak Ridge, NC (US);
Nace M. Rossi, Singapore, SG;
Inventors:
Alan S. Chen, Windermere, FL (US);
Mark Dyson, Singapore, SG;
Daniel C. Kerr, Oak Ridge, NC (US);
Nace M. Rossi, Singapore, SG;
Assignee:
Agere Systems Inc., Allentown, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/331 (2006.01); H01L 21/266 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention, in one aspect, provides a semiconductor device that comprises a collector located in a semiconductor substrate and an isolation region located under the collector, wherein a peak dopant concentration of the isolation region is separated from a peak dopant concentration of the collector by at least about 0.9 microns. The invention also provides a method for forming this device.