WO2019179064A1 - 提高三维nand闪存存储器可靠性的数据写入方法 - Google Patents
提高三维nand闪存存储器可靠性的数据写入方法 Download PDFInfo
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- WO2019179064A1 WO2019179064A1 PCT/CN2018/104546 CN2018104546W WO2019179064A1 WO 2019179064 A1 WO2019179064 A1 WO 2019179064A1 CN 2018104546 W CN2018104546 W CN 2018104546W WO 2019179064 A1 WO2019179064 A1 WO 2019179064A1
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- flash memory
- nand flash
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- reliability
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/10—Programming or data input circuits
- G11C16/14—Circuits for erasing electrically, e.g. erase voltage switching circuits
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
- G06F12/023—Free address space management
- G06F12/0238—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory
- G06F12/0246—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory in block erasable memory, e.g. flash memory
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0673—Single storage device
- G06F3/0679—Non-volatile semiconductor memory device, e.g. flash memory, one time programmable memory [OTP]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0614—Improving the reliability of storage systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0646—Horizontal data movement in storage systems, i.e. moving data in between storage devices or systems
- G06F3/0647—Migration mechanisms
- G06F3/0649—Lifecycle management
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0646—Horizontal data movement in storage systems, i.e. moving data in between storage devices or systems
- G06F3/0652—Erasing, e.g. deleting, data cleaning, moving of data to a wastebasket
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/04—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS
- G11C16/0483—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS comprising cells having several storage transistors connected in series
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/10—Programming or data input circuits
- G11C16/12—Programming voltage switching circuits
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
- G06F2212/72—Details relating to flash memory management
- G06F2212/7209—Validity control, e.g. using flags, time stamps or sequence numbers
Abstract
Description
Claims (7)
- 一种提高三维NAND闪存存储器可靠性的数据写入方法,其特征是:基于三维架构NAND闪存存储器,在写入数据之前,预先对数据存储区域写入一组特殊数据后进行擦除,之后再执行数据写入操作;所述特殊数据分为两种形式,一种是与待存储数据完全相同的数据,一种是使存储单元相同状态的数据。
- 根据权利要求1所述的提高三维NAND闪存存储器可靠性的数据写入方法,其特征是:所述写入一组特殊数据后进行擦除,之后再执行数据写入操作,是把预写入特殊数据、擦除操作以及待存储数据的写入操作合并到一个连续性写入操作时序中,首先是特殊数据写入时序,其次是擦除时序,最后是待存储数据的写入时序。
- 根据权利要求2所述的连续性写入操作时序,其特征是:所述特殊数据写入和擦除的数据判定去除,以减少连续性写入操作时序所需时间。
- 根据权利要求1所述的提高三维NAND闪存存储器可靠性的数据写入方法,其特征是:所述使存储单元相同状态的数据是指通过编码LSB页、CSB页和MSB页,从而使每个存储单元的状态是相同的,而且这个状态是低阈值电压状态。
- 根据权利要求1所述的提高三维NAND闪存存储器可靠性的数据写入方法,其特征是:对于所述与待存储数据完全相同的数据,是选择任意没有使用过的存储区域,在该存储区域写入需要存储的数据,然后在该存储区域进行擦除操作,随后立即在该存储区域写入与上次相同的数据。
- 根据权利要求1所述的提高三维NAND闪存存储器可靠性的数据写入方法,其特征是:在数据写入时,根据数据分类来执行不同的写入命令,对于需求长时间保持特性的数据首先对预定存储区域进行预写入,其次对该区域擦除,其后才执行数据转移或数据写入操作。
- 根据权利要求1所述的提高三维NAND闪存存储器可靠性的数据写入方法,其特征是:在数据备份或转移时,首先对预定存储区域进行预写入,其次对该区域擦除,其后才执行数据转移或数据写入操作。
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KR1020197029877A KR20200028327A (ko) | 2018-09-05 | 2018-09-07 | 3차원 nand 플래시 메모리의 신뢰성을 향상시키는 데이터 기입 방법 |
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CN201811033382.2A CN109240619A (zh) | 2018-09-05 | 2018-09-05 | 提高三维nand闪存存储器可靠性的数据写入方法 |
CN201811033382.2 | 2018-09-05 |
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CN (1) | CN109240619A (zh) |
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CN111276176A (zh) * | 2020-02-11 | 2020-06-12 | 上海威固信息技术股份有限公司 | 一种三维堆叠闪存单元阈值电压分布模型构建方法 |
US11106532B1 (en) * | 2020-04-29 | 2021-08-31 | Micron Technology, Inc. | Selective sampling of a data unit during a program erase cycle based on error rate change patterns |
CN114063906B (zh) * | 2021-10-15 | 2022-05-17 | 北京得瑞领新科技有限公司 | Nand闪存中物理块的管理方法、装置及ssd设备 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US20110255336A1 (en) * | 2010-04-14 | 2011-10-20 | Kabushiki Kaisha Toshiba | Semiconductor memory device |
CN106251900A (zh) * | 2015-06-12 | 2016-12-21 | 株式会社东芝 | 半导体存储装置及存储系统 |
CN107369470A (zh) * | 2016-02-26 | 2017-11-21 | 三星电子株式会社 | 存储设备的编程方法和使用其的存储系统 |
CN107958687A (zh) * | 2016-10-18 | 2018-04-24 | 群联电子股份有限公司 | 存储器编程方法、存储器控制电路单元及其存储装置 |
CN108074618A (zh) * | 2016-11-15 | 2018-05-25 | 旺宏电子股份有限公司 | 存储器阵列的操作方法 |
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- 2018-09-05 CN CN201811033382.2A patent/CN109240619A/zh active Pending
- 2018-09-07 WO PCT/CN2018/104546 patent/WO2019179064A1/zh active Application Filing
- 2018-09-07 KR KR1020197029877A patent/KR20200028327A/ko not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110255336A1 (en) * | 2010-04-14 | 2011-10-20 | Kabushiki Kaisha Toshiba | Semiconductor memory device |
CN106251900A (zh) * | 2015-06-12 | 2016-12-21 | 株式会社东芝 | 半导体存储装置及存储系统 |
CN107369470A (zh) * | 2016-02-26 | 2017-11-21 | 三星电子株式会社 | 存储设备的编程方法和使用其的存储系统 |
CN107958687A (zh) * | 2016-10-18 | 2018-04-24 | 群联电子股份有限公司 | 存储器编程方法、存储器控制电路单元及其存储装置 |
CN108074618A (zh) * | 2016-11-15 | 2018-05-25 | 旺宏电子股份有限公司 | 存储器阵列的操作方法 |
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CN109240619A (zh) | 2019-01-18 |
KR20200028327A (ko) | 2020-03-16 |
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