Invention Grant
- Patent Title: Semiconductor memory device
- Patent Title (中): 半导体存储器件
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Application No.: US12396559Application Date: 2009-03-03
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Publication No.: US07995379B2Publication Date: 2011-08-09
- Inventor: Yoshihiro Ueda
- Applicant: Yoshihiro Ueda
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2008-056761 20080306
- Main IPC: G11C11/00
- IPC: G11C11/00

Abstract:
A semiconductor memory device includes a sense amplifier that compares intensities of currents flowing through a first node and a second node with each other, a first MOSFET having a drain terminal connected with the first node, a second MOSFET having a drain terminal connected with the second node, a memory cell connected with a source terminal of the first MOSFET, and a reference cell. The semiconductor memory device further includes a connection control circuit that connects a source terminal of the second MOSFET with the reference cell at the time of a regular operation and connects the source terminal of the second MOSFET with a reference voltage terminal at the time of a test operation.
Public/Granted literature
- US20090225586A1 SEMICONDUCTOR MEMORY DEVICE Public/Granted day:2009-09-10
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