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:
Aug. 15, 2000
Filed:
Aug. 28, 1998
Applicant:
Inventor:
Ryo Haga, Yokohama, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365222 ; 36523003 ;
Abstract
A semiconductor integrated circuit device has memory cell arrays capable of using shared sense amplifiers, wherein memory can be increased by refresh units to a desired capacity. Specific memory cell arrays can be selected when writing/reading and refreshing by switching address signals when writing/reading and when refreshing. The number of word lines selected when refreshing is always uniform in the memory system.