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:
Jun. 01, 2010
Filed:
Nov. 06, 2007
Applicants:
Jae-youn Youn, Seoul, KR;
Yoon-hwan Yoon, Yongin-si, KR;
Sang-jae Rhee, Seongnam-si, KR;
Inventors:
Assignee:
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 8/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Semiconductor memory devices having hierarchical word line structures are provided. A block of sub-word line driver circuits (SWDB) are disposed between a first block of memory and a second block of memory. A SWDB includes a plurality of sub-wordline driver (SWD) circuits arranged in a plurality of SWD columns each having four SWD circuits extending in a first direction between the first and second blocks of memory. Two adjacent SWD columns include a SWD group for driving a plurality of sub-word lines extending from the SWD group along the first direction into the first and second blocks of memory.