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:
Jul. 26, 2011
Filed:
May. 04, 2009
Young Suk Kim, Kawasaki, JP;
Yosuke Shimamune, Kawasaki, JP;
Young Suk Kim, Kawasaki, JP;
Yosuke Shimamune, Kawasaki, JP;
Fujitsu Semiconductor Limited, Yokohama, JP;
Abstract
A semiconductor device has: a semiconductor substrate made of a first semiconductor material; an n-channel field effect transistor formed in the semiconductor substrate and having n-type source/drain regions made of a second semiconductor material different from the first semiconductor material; and a p-channel field effect transistor formed in the semiconductor substrate and having p-type source/drain regions made of a third semiconductor material different from the first semiconductor material, wherein the second and third semiconductor materials are different materials. The semiconductor device having n- and p-channel transistors has improved performance by utilizing stress.