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. 06, 1991
Filed:
Mar. 06, 1990
Applicant:
Inventor:
Leonard J Schwee, Silver Spring, MD (US);
Assignee:
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365145 ; 36518901 ;
Abstract
The ferroelectric capacitor in each memory cell of an array has a logically nactive electrode plate maintained at a fixed voltage level and an opposed electrode plate coupled through a switching transistor, turned on by address signals, to a bit line through which the polarization of the capacitor is logically controlled to write and store binary logic data therein which is also readout through the same bit line at a different time during a logic restoring read operation. The ferroelectric material has sufficient conductivity to maintain the electrodes at nearly equal potentials.