发明授权
- 专利标题: Semiconductor memory device
- 专利标题(中): 半导体存储器件
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申请号: US13714953申请日: 2012-12-14
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公开(公告)号: US08964487B2公开(公告)日: 2015-02-24
- 发明人: Makoto Hirano
- 申请人: Samsung Electronics Co., Ltd.
- 申请人地址: KR Gyeonggi-do
- 专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人地址: KR Gyeonggi-do
- 代理机构: Harness, Dickey & Pierce, P.L.C.
- 优先权: JP2011-276436 20111216
- 主分类号: G11C7/10
- IPC分类号: G11C7/10 ; G11C16/24 ; G11C7/22 ; G11C16/26 ; G11C16/32 ; G11C16/04
摘要:
A semiconductor memory device includes a memory cell array having a plurality of bit lines and a plurality of word lines intersecting each other and a plurality of nonvolatile memory cells; and a page buffer for each bit line including a latch configured to store one of data to be written to a first nonvolatile memory cell selected by each word line and data read from the first nonvolatile memory cell, wherein before reading out data, the page buffer configured to store in a replica capacitor a voltage value of a word line adjacent to the selected word line when a second nonvolatile memory cell is turned on, the replica capacitor including a first capacitor and a second capacitor connected in parallel, and the page buffer is configured to vary when the latch judges the data from the first nonvolatile memory cell according to the voltage value.
公开/授权文献
- US20130155770A1 SEMICONDUCTOR MEMORY DEVICE 公开/授权日:2013-06-20
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