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:
May. 23, 2006
Filed:
Sep. 15, 2003
Applicants:
Gordon MA, Phoenix, AZ (US);
Qiang Chen, Sollentuna, SE;
Inventors:
Gordon Ma, Phoenix, AZ (US);
Qiang Chen, Sollentuna, SE;
Assignee:
Infineon Technologies AG, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/76 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor device comprises an active region of a first conductivity type including a transistor structure, and a ring shaped region of the first conductivity type extending from a surface of the active region into the active region and substantially surrounding the transistor structure.