Invention Grant
- Patent Title: Nonvolatile semiconductor memory device
- Patent Title (中): 非易失性半导体存储器件
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Application No.: US13070092Application Date: 2011-03-23
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Publication No.: US08503248B2Publication Date: 2013-08-06
- Inventor: Takahiro Otsuka , Toshiaki Edahiro
- Applicant: Takahiro Otsuka , Toshiaki Edahiro
- 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: JP2010-066949 20100323
- Main IPC: G11C16/06
- IPC: G11C16/06

Abstract:
A nonvolatile semiconductor memory device for raising operating speed is provided. The nonvolatile semiconductor memory device includes plural bit lines extending in a first direction, and a memory cell that includes plural blocks each having plural NAND strings each of which includes a group of memory cells connected in series with one another and selecting transistors connected to the respective ends of the memory cell group. One ends of current paths in ones of the selecting transistors are connected to the bit lines, while one ends of current paths in the other selecting transistors are connected to a source line. The nonvolatile semiconductor memory device further includes a memory cell array and a voltage control circuit that is disposed in the memory cell array in a manner of bisecting the memory cell array and that charges or discharges the bit lines.
Public/Granted literature
- US20110235416A1 NONVOLATILE SEMICONDUCTOR MEMORY DEVICE Public/Granted day:2011-09-29
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