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:
May. 20, 1997
Filed:
Jun. 04, 1996
Applicant:
Inventors:
Isao Naritake, Tokyo, JP;
Tadahiko Sugibayashi, Tokyo, JP;
Satoshi Utsugi, Tokyo, JP;
Tatsunori Murotani, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365227 ; 36523003 ; 365222 ; 365203 ;
Abstract
A data refresh is indispensable for a semiconductor dynamic random access memory device, and electric charges are recycled from bit line pairs for a row of memory cell arrays to power supply lines for bit line drivers associated with the next row of memory cell arrays and from bit line pairs for the next row of memory cell arrays to power supply lines for the row of memory cell arrays, thereby reducing power consumption in the data refresh.