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. 24, 1988
Filed:
Jun. 28, 1984
Applicant:
Inventors:
Tetsuya Nakajima, Yokohama, JP;
Masaki Nagahara, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365230 ; 365179 ;
Abstract
A semiconductor memory device including at least word lines and bit lines with memory cells located at each cross point therebetween. Each of the word lines is divided to form segmented word lines and each of the word line segments is driven by an individual private word driver. The individual private word drivers are activated together in response to a word selection signal. Level shifting diodes are employed in the bit line drivers to offset a voltage level change caused by the segment word drivers.