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. 10, 1998
Filed:
Feb. 27, 1997
Applicant:
Inventors:
Tooru Ichimura, Hyogo, JP;
Hiromi Okimoto, Hyogo, JP;
Masanori Hayashikoshi, Hyogo, JP;
Youichi Tobita, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
36518906 ; 365204 ;
Abstract
A semiconductor memory device includes: subarrays having memory cells each arranged at cross points of a plurality of bit lines and a plurality of word lines; a row decoder for selecting among the word lines; a column decoder for supplying a select signal to transfer gates for selecting among paired bit lines; and a clamping circuit for fixing the potential of a column select line at a constant potential before the column decoder is activated.