Invention Grant
US07697334B2 Nonvolatile semiconductor memory device and writing method thereof
失效
非易失性半导体存储器件及其写入方法
- Patent Title: Nonvolatile semiconductor memory device and writing method thereof
- Patent Title (中): 非易失性半导体存储器件及其写入方法
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Application No.: US11892738Application Date: 2007-08-27
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Publication No.: US07697334B2Publication Date: 2010-04-13
- Inventor: Tsutomu Nakajima , Kenji Kozakai , Koji Sakui
- Applicant: Tsutomu Nakajima , Kenji Kozakai , Koji Sakui
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Rader, Fishman & Grauer PLLC
- Priority: JP2006-240102 20060905
- Main IPC: G11C16/04
- IPC: G11C16/04

Abstract:
Disclosed herein is a nonvolatile semiconductor memory device including: a first selection transistor configured to be connected to a bit line; a second selection transistor configured to be connected to a common source line; a memory cell configured to be connected in series between the first and second selection transistors; and writing means for carrying out writing for a selected memory cell. In the nonvolatile semiconductor memory device, the writing means applies a potential yielding a writing-blocked state via a bit line to a memory cell for which writing is not to be carried out, of a memory cell selected for writing, and the writing means carries out writing for a writing-target memory cell in a state in which a bit line has a bit line potential state dependent upon a threshold value state of the writing-target memory cell.
Public/Granted literature
- US20080055999A1 Nonvolatile semiconductor memory device and writing method thereof Public/Granted day:2008-03-06
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