IN2014DE00713A - - Google Patents

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Publication number
IN2014DE00713A
IN2014DE00713A IN713DE2014A IN2014DE00713A IN 2014DE00713 A IN2014DE00713 A IN 2014DE00713A IN 713DE2014 A IN713DE2014 A IN 713DE2014A IN 2014DE00713 A IN2014DE00713 A IN 2014DE00713A
Authority
IN
India
Prior art keywords
read
optimal
word line
read operation
level
Prior art date
Application number
Inventor
Kyung-Ryun Kim
Sang-Yong Yoon
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of IN2014DE00713A publication Critical patent/IN2014DE00713A/en

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Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C16/00Erasable programmable read-only memories
    • G11C16/02Erasable programmable read-only memories electrically programmable
    • G11C16/06Auxiliary circuits, e.g. for writing into memory
    • G11C16/26Sensing or reading circuits; Data output circuits
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C29/00Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • G11C29/04Detection or location of defective memory elements, e.g. cell constructio details, timing of test signals
    • G11C29/50Marginal testing, e.g. race, voltage or current testing
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/07Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1008Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices
    • G06F11/1048Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices using arrangements adapted for a specific error detection or correction feature
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/07Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1008Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices
    • G06F11/1068Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices in sector programmable memories, e.g. flash disk
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C16/00Erasable programmable read-only memories
    • G11C16/02Erasable programmable read-only memories electrically programmable
    • G11C16/06Auxiliary circuits, e.g. for writing into memory
    • G11C16/34Determination of programming status, e.g. threshold voltage, overprogramming or underprogramming, retention
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C16/00Erasable programmable read-only memories
    • G11C16/02Erasable programmable read-only memories electrically programmable
    • G11C16/06Auxiliary circuits, e.g. for writing into memory
    • G11C16/34Determination of programming status, e.g. threshold voltage, overprogramming or underprogramming, retention
    • G11C16/3418Disturbance prevention or evaluation; Refreshing of disturbed memory data
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C29/00Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • G11C29/02Detection or location of defective auxiliary circuits, e.g. defective refresh counters
    • G11C29/021Detection or location of defective auxiliary circuits, e.g. defective refresh counters in voltage or current generators
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C29/00Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • G11C29/02Detection or location of defective auxiliary circuits, e.g. defective refresh counters
    • G11C29/028Detection or location of defective auxiliary circuits, e.g. defective refresh counters with adaption or trimming of parameters
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C29/00Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • G11C29/04Detection or location of defective memory elements, e.g. cell constructio details, timing of test signals
    • G11C29/08Functional testing, e.g. testing during refresh, power-on self testing [POST] or distributed testing
    • G11C29/12Built-in arrangements for testing, e.g. built-in self testing [BIST] or interconnection details
    • G11C29/38Response verification devices
    • G11C29/42Response verification devices using error correcting codes [ECC] or parity check
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C16/00Erasable programmable read-only memories
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C2207/00Indexing scheme relating to arrangements for writing information into, or reading information out from, a digital store
    • G11C2207/22Control and timing of internal memory operations
    • G11C2207/2254Calibration

Abstract

In a method of reading data from a nonvolatile memory device, a first read operation for memory cells coupled to a first word line is performed by applying a first read voltage to the first word line, a first read retry is performed to obtain an optimal read level regardless or independent of whether data read by the first read operation is error-correctable, and the optimal read level is stored to perform a subsequent second read operation using the optimal read level. Related methods and devices are also discussed.
IN713DE2014 2013-03-15 2014-03-12 IN2014DE00713A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130027722A KR102131802B1 (en) 2013-03-15 2013-03-15 Method of reading data from a nonvolatile memory device, nonvolatile memory device, and method of operating a memory system

Publications (1)

Publication Number Publication Date
IN2014DE00713A true IN2014DE00713A (en) 2015-06-19

Family

ID=50555212

Family Applications (1)

Application Number Title Priority Date Filing Date
IN713DE2014 IN2014DE00713A (en) 2013-03-15 2014-03-12

Country Status (9)

Country Link
US (1) US9412471B2 (en)
JP (1) JP6580302B2 (en)
KR (1) KR102131802B1 (en)
CN (1) CN104051016B (en)
AU (1) AU2014200492B2 (en)
DE (1) DE102014103129B4 (en)
IN (1) IN2014DE00713A (en)
NL (1) NL2012398B1 (en)
TW (1) TWI631564B (en)

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Also Published As

Publication number Publication date
US20140281770A1 (en) 2014-09-18
DE102014103129B4 (en) 2022-11-03
JP6580302B2 (en) 2019-09-25
US9412471B2 (en) 2016-08-09
AU2014200492B2 (en) 2019-01-17
KR20140112968A (en) 2014-09-24
NL2012398B1 (en) 2016-07-22
NL2012398A (en) 2014-09-16
CN104051016A (en) 2014-09-17
TW201435887A (en) 2014-09-16
CN104051016B (en) 2019-07-26
AU2014200492A1 (en) 2014-10-02
JP2014182864A (en) 2014-09-29
DE102014103129A1 (en) 2014-09-18
KR102131802B1 (en) 2020-07-08
TWI631564B (en) 2018-08-01

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