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. 13, 1985
Filed:
Dec. 07, 1982
Shigeki Nozaki, Kawasaki, JP;
Hatsuo Miyahara, Yokohama, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A semiconductor memory device which includes a plurality of memory cells each having a capacitor, and peripheral circuits of the memory cells, integrated on a semiconductor substrate. Each capacitor has a storage electrode and an electrode opposite to the storage electrode, the opposite electrode being connected to a ground line, wherein, the ground line connected to the opposite electrode of each capacitor is separated from the other ground lines connected to the peripheral circuits. All of the ground lines are connected to a common portion having an impedance lower than the impedance of each ground line, whereby data stored in the capacitors is prevented from being destroyed.