Invention Grant
- Patent Title: Semiconductor memory device
- Patent Title (中): 半导体存储器件
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Application No.: US13714953Application Date: 2012-12-14
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Publication No.: US08964487B2Publication Date: 2015-02-24
- Inventor: Makoto Hirano
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Gyeonggi-do
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Gyeonggi-do
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JP2011-276436 20111216
- Main IPC: G11C7/10
- IPC: G11C7/10 ; G11C16/24 ; G11C7/22 ; G11C16/26 ; G11C16/32 ; G11C16/04

Abstract:
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.
Public/Granted literature
- US20130155770A1 SEMICONDUCTOR MEMORY DEVICE Public/Granted day:2013-06-20
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