JP2020123023A - 半導体記憶装置 - Google Patents
半導体記憶装置 Download PDFInfo
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- JP2020123023A JP2020123023A JP2019013019A JP2019013019A JP2020123023A JP 2020123023 A JP2020123023 A JP 2020123023A JP 2019013019 A JP2019013019 A JP 2019013019A JP 2019013019 A JP2019013019 A JP 2019013019A JP 2020123023 A JP2020123023 A JP 2020123023A
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 35
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 230000004044 response Effects 0.000 claims description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008672 reprogramming Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1415—Saving, restoring, recovering or retrying at system level
- G06F11/1441—Resetting or repowering
-
- 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
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0614—Improving the reliability of storage systems
- G06F3/0619—Improving the reliability of storage systems in relation to data integrity, e.g. data losses, bit errors
-
- 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
- G06F3/0683—Plurality of storage devices
- G06F3/0688—Non-volatile semiconductor memory arrays
-
- 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
-
- 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
- G06F2212/10—Providing a specific technical effect
- G06F2212/1032—Reliability improvement, data loss prevention, degraded operation etc
-
- 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
- G06F2212/10—Providing a specific technical effect
- G06F2212/1056—Simplification
-
- 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
- G06F2212/7201—Logical to physical mapping or translation of blocks or pages
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Security & Cryptography (AREA)
- Quality & Reliability (AREA)
- Read Only Memory (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
- Power Sources (AREA)
- Retry When Errors Occur (AREA)
- Memory System (AREA)
Abstract
Description
200:メモリコントローラ
210:電圧検出部
220:書込み/セレクタ
230:SRAM
240:RRAM
300:メモリ装置
Claims (9)
- 複数のブロックを含むNAND型のメモリセルアレイと、
電源電圧が一定電圧に降下したことを検出する検出手段と、
論理アドレスを物理アドレスに変換する変換テーブルを記憶する揮発性メモリと、
物理アドレスに従い選択されたブロックのページにデータをプログラムするプログラム手段と、
前記プログラム手段によりプログラムされている間に前記検出手段により一定電圧が検出されたとき、プログラムされているブロックおよびページの論理アドレスと、当該論理アドレスを他の物理アドレスに変換するための変換情報を記憶する不揮発性メモリと、
前記揮発性メモリの変換テーブルまたは前記不揮発性メモリの変換情報に基づき入力された論理アドレスを物理アドレスに変換する変換手段と、
を有する半導体記憶装置。 - 前記他の物理アドレスは、プログラムが中断されたページを退避させるために用意された専用のブロックを選択するためのアドレスである、請求項1に記載の半導体記憶装置。
- 前記他の物理アドレスは、ブロックを選択するためのブロックアドレスと、ページを選択するためのページアドレスとを含む、請求項1または2に記載の半導体記憶装置。
- 前記検出手段により一定電圧が検出されたことに応答して、前記変換情報を不揮発性メモリに書込む手段を含む、請求項1に記載の半導体記憶装置。
- 前記一定電圧は、半導体記憶装置が動作可能な最小電圧よりも大きい、請求項1ないし4いずれか1つに記載の半導体記憶装置。
- 前記書込み手段は、電源電圧が喪失する前、または半導体記憶装置が動作できなくなる前に、前記変換情報を不揮発性メモリに書込む、請求項4または5に記載の半導体記憶装置。
- 前記不揮発性メモリは、可変抵抗型メモリである、請求項1に記載の半導体記憶装置。
- 前記変換手段は、前記不揮発性メモリの変換情報を先に選択する、請求項1に記載の半導体記憶装置。
- 前記変換手段は、入力された論理アドレスが前記不揮発性メモリに記憶された論理アドレスを比較し、両者が一致する場合には、前記他の物理アドレスに変換する、請求項8に記載の半導体記憶装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019013019A JP6708762B1 (ja) | 2019-01-29 | 2019-01-29 | 半導体記憶装置 |
TW108134999A TWI700702B (zh) | 2019-01-29 | 2019-09-27 | 半導體儲存裝置 |
CN201911092557.1A CN111488292B (zh) | 2019-01-29 | 2019-11-11 | 半导体存储装置 |
US16/681,751 US11030091B2 (en) | 2019-01-29 | 2019-11-12 | Semiconductor storage device for improved page reliability |
KR1020190146374A KR102338009B1 (ko) | 2019-01-29 | 2019-11-15 | 반도체 기억 장치 |
Applications Claiming Priority (1)
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---|---|---|---|
JP2019013019A JP6708762B1 (ja) | 2019-01-29 | 2019-01-29 | 半導体記憶装置 |
Publications (2)
Publication Number | Publication Date |
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JP6708762B1 JP6708762B1 (ja) | 2020-06-10 |
JP2020123023A true JP2020123023A (ja) | 2020-08-13 |
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JP2019013019A Active JP6708762B1 (ja) | 2019-01-29 | 2019-01-29 | 半導体記憶装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US11030091B2 (ja) |
JP (1) | JP6708762B1 (ja) |
KR (1) | KR102338009B1 (ja) |
CN (1) | CN111488292B (ja) |
TW (1) | TWI700702B (ja) |
Citations (12)
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2019
- 2019-01-29 JP JP2019013019A patent/JP6708762B1/ja active Active
- 2019-09-27 TW TW108134999A patent/TWI700702B/zh active
- 2019-11-11 CN CN201911092557.1A patent/CN111488292B/zh active Active
- 2019-11-12 US US16/681,751 patent/US11030091B2/en active Active
- 2019-11-15 KR KR1020190146374A patent/KR102338009B1/ko active IP Right Grant
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Also Published As
Publication number | Publication date |
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JP6708762B1 (ja) | 2020-06-10 |
CN111488292A (zh) | 2020-08-04 |
CN111488292B (zh) | 2023-03-10 |
KR102338009B1 (ko) | 2021-12-10 |
US11030091B2 (en) | 2021-06-08 |
KR20200094621A (ko) | 2020-08-07 |
TWI700702B (zh) | 2020-08-01 |
US20200242023A1 (en) | 2020-07-30 |
TW202029207A (zh) | 2020-08-01 |
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