Invention Grant
- Patent Title: Semiconductor memory device
- Patent Title (中): 半导体存储器件
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Application No.: US12401184Application Date: 2009-03-10
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Publication No.: US07903446B2Publication Date: 2011-03-08
- Inventor: Daisaburo Takashima
- Applicant: Daisaburo Takashima
- 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: JP2008-061586 20080311
- Main IPC: G11C11/22
- IPC: G11C11/22

Abstract:
A memory includes ferroelectric capacitors; cell transistors each including a drain connected to one electrode of each ferroelectric capacitor, and a gate connected to the word line; and memory cell blocks each including a reset transistor, a block selection transistor, and memory cells including the ferroelectric capacitors and the cell transistors, wherein sources of the cell transistors are connected to the plate lines, the other electrode of the ferroelectric capacitor is connected to one of the sub-bit lines, a source and a drain of the block selection transistor are connected to one of the sub-bit lines and one of the bit lines, a source of the reset transistor is connected to one of the plate lines or a fixed potential, and a drain of the reset transistor in each memory cell block is connected to one of the sub-bit lines, and the memory cell blocks configure a memory cell array.
Public/Granted literature
- US20090231902A1 SEMICONDUCTOR MEMORY DEVICE Public/Granted day:2009-09-17
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