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:
Sep. 18, 2007
Filed:
Mar. 15, 2005
Applicant:
Masafumi Hamaguchi, Kawasaki, JP;
Inventor:
Masafumi Hamaguchi, Kawasaki, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/76 (2006.01); H01L 29/94 (2006.01); H01L 31/062 (2006.01); H01L 31/113 (2006.01); H01L 31/119 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor device includes a first diffusion region including germanium atoms and first impurity atoms, provided on a surface layer of a semiconductor substrate, the first impurity atoms contributing to electric conductivity, and a second diffusion region including second impurity atoms, provided shallower than the first diffusion region from a surface of the first diffusion region, the second impurity atoms not contributing to the electric conductivity.