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. 19, 2015
Filed:
Dec. 30, 2013
Panasonic Corporation, Osaka, JP;
Yukihiro Kaneko, Osaka, JP;
Abstract
Pulse voltages Vand Vare applied to a first upper gate electrode and a second upper gate electrode, respectively, for a period Twhich is shorter than a period necessary to invert all the polarizations included in a ferroelectric film, while voltages Vs, Vd, and Vare applied to a source electrode, a drain electrode, and a lower gate electrode film, respectively, so as to increase the values of the widths WRLand WRLand so as to decrease the value of the width WRH. The absolute values of the pulse voltages Vand Vare smaller than that of a voltage necessary to invert all the polarizations included in the ferroelectric film. The voltage Vs, the voltage Vd, the voltage V, the pulse voltage V, and the pulse voltage Vsatisfy the following relationship: Vs, Vd, V>V, V