Invention Grant
US08223552B2 Nonvolatile semiconductor memory device and method for driving the same
失效
非易失性半导体存储器件及其驱动方法
- Patent Title: Nonvolatile semiconductor memory device and method for driving the same
- Patent Title (中): 非易失性半导体存储器件及其驱动方法
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Application No.: US12496064Application Date: 2009-07-01
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Publication No.: US08223552B2Publication Date: 2012-07-17
- Inventor: Jun Fujiki , Koichi Muraoka , Naoki Yasuda
- Applicant: Jun Fujiki , Koichi Muraoka , Naoki Yasuda
- 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: JP2008-252611 20080930
- Main IPC: G11C11/40
- IPC: G11C11/40

Abstract:
A nonvolatile semiconductor memory device includes a memory cell and a driving unit. The a memory cell has a semiconductor layer having, a channel, and a source region and a drain region provided on both sides of the channel; a first insulating film provided on the channel; a charge retention layer provided on the first insulating film; and a gate electrode provided on the charge retention layer. The driving unit applies a burst signal having a constant amplitude and a constant frequency between the gate electrode and the semiconductor layer and performs at least one of operations of programming and erasing charge on the charge retention layer.
Public/Granted literature
- US20100080065A1 NONVOLATILE SEMICONDUCTOR MEMORY DEVICE AND METHOD FOR DRIVING THE SAME Public/Granted day:2010-04-01
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