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:
Jan. 03, 1989
Filed:
Feb. 17, 1987
Applicant:
Inventors:
Hideki Kawai, Nara, JP;
Masaru Fujii, Takatsuki, JP;
Kiyoto Ohta, Takatsuki, JP;
Yoshikazu Maeyama, Kyoto, JP;
Assignee:
Matsushita Electronics Corporation, Kadoma, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365 51 ; 365 63 ; 365230 ; 365189 ;
Abstract
In a semiconductor memory device, a memory cell array is separated into at least two portions on a substrate, and a serial memory element, such as a shift register, and control signal lines are collectively disposed between the two memory cell array portions, and by this arrangement, the length of the control signal lines and data lines can be minimized so that the stray or parasitic capacitance is reduced, and a higher speed and stable operation of the device is thereby realized.