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:
Nov. 25, 2014
Filed:
Mar. 21, 2012
Satoshi Torii, Kuwana, JP;
Satoshi Torii, Kuwana, JP;
Fujitsu Semiconductor Limited, Yokohama, JP;
Abstract
Local bit lines (LBL) are respectively provided for a plurality of sectors, corresponding to each of the global bit lines (GBL). Sector select transistors connect a LBL to a GBLector select lines control the on/off state of the sector select transistors for the corresponding sectors. A plurality of word lines (WL) intersect the local bit lines. Memory cells are located at the intersections between the LBL and the WL. Each memory cell connects a source line with the corresponding LBL and includes an n-channel transistor that is turned on/off by the corresponding WL. A precharge voltage is applied to a charging line. Charging transistors connect the LBL to the charging line. A charging gate line controls the on/off state of the charging transistors.