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:
Nov. 02, 1999
Filed:
Sep. 08, 1997
Applicant:
Inventor:
Shunsuke Baba, Tokyo, JP;
Assignee:
Oki Electric Industry Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257355 ; 257357 ; 257371 ;
Abstract
A semiconductor device includes a source and a drain formed in a device region of a semiconductor substrate, and an electrode withdrawal portion having an impurity concentration higher than that of the device region. The electrode withdrawal portion is formed so as to adjoin either one of the source and drain. An electrode for the source or drain adjacent to the electrode withdrawal portion is used jointly as an electrode for the electrode withdrawal portion.