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:
Sep. 02, 1997
Filed:
Jun. 13, 1996
Kenshiro Arase, Kanagawa, JP;
Sony Corporation, , JP;
Abstract
A ferroelectric memory comprised of a word line; a read bit line; a plate line; a memory array comprised of a matrix arrangement of memory cells with gate electrodes connected to the word line, one of the source-drain electrodes connected to the read bit line, the other of the source-drain electrodes connected to one of the electrodes of a ferroelectric capacitor, and the other of the electrodes of the ferroelectric capacitor connected to the plate line; a first reference cell and a second reference cell corresponding to each of the read cells in a word line selected at the time of reading data, read out in comparison with each other, and storing data different in value from each other; a first sense amplifier for comparing and amplifying a difference in potential between the read bit line and a first reference bit line to which the first reference cell is connected for each read bit line to which a read cell is connected; and a second sense amplifier for comparing and amplifying a difference in potential between the read bit line and a second reference bit line to which the second reference cell is connected.