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. 03, 2015
Filed:
Feb. 19, 2013
Applicant:
Samsung Electronics Co., Ltd., Suwon-si, KR;
Inventors:
Kyo-Suk Chae, Suwon-si, KR;
Satoru Yamada, Seoul, KR;
Assignee:
Samsung Electronics Co., Ltd., Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01); H01L 29/78 (2006.01); G11C 11/4094 (2006.01); G11C 11/4096 (2006.01);
U.S. Cl.
CPC ...
H01L 29/7816 (2013.01); G11C 7/00 (2013.01); G11C 11/4094 (2013.01); G11C 11/4096 (2013.01); G11C 2207/005 (2013.01);
Abstract
A semiconductor memory device includes a bit line connected to a memory cell; an input/output line configured to input a data signal to the memory cell during a writing operation and to output a data signal stored in the memory cell during a reading operation; and a column select transistor including a first source/drain connected to the bit line and a second source/drain connected to the input/output line, wherein a resistance of the first source/drain is smaller than a resistance of the second source/drain.