Invention Grant
- Patent Title: Semiconductor memory device
- Patent Title (中): 半导体存储器件
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Application No.: US11921755Application Date: 2006-01-05
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Publication No.: US07668001B2Publication Date: 2010-02-23
- Inventor: Masayuki Tajiri , Atsushi Shimaoka , Kohji Inoue
- Applicant: Masayuki Tajiri , Atsushi Shimaoka , Kohji Inoue
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Nixon & Vanderhye, P.C.
- Priority: JP2005-178395 20050617; JP2005-282199 20050928
- International Application: PCT/JP2006/309086 WO 20060105
- International Announcement: WO2006/134732 WO 20061221
- Main IPC: G11C11/00
- IPC: G11C11/00

Abstract:
A semiconductor memory device (1) comprises a memory cell array (100) in which memory cells each have a variable resistance element and the memory cells in the same row are connected to a common word line and the memory cells in the same column are connected to a common bit line, wherein during a predetermined memory action, the voltage amplitude of the voltage pulse applied to an end of at least one of the selected word line and the selected bit line is adjusted based on the position of the selected memory cell in the memory cell array (100) so that the effective voltage amplitude of a voltage pulse applied to the variable resistance element of the selected memory cell to be programmed or erased falls within a certain range regardless of the position in the memory cell array (100).
Public/Granted literature
- US20090135641A1 Semiconductor memory device Public/Granted day:2009-05-28
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