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WO2009129340A3 - Flash memory management - Google Patents

Flash memory management Download PDF

Info

Publication number
WO2009129340A3
WO2009129340A3 PCT/US2009/040715 US2009040715W WO2009129340A3 WO 2009129340 A3 WO2009129340 A3 WO 2009129340A3 US 2009040715 W US2009040715 W US 2009040715W WO 2009129340 A3 WO2009129340 A3 WO 2009129340A3
Authority
WO
WIPO (PCT)
Prior art keywords
flash memory
size
metadata
memory management
error correcting
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/US2009/040715
Other languages
French (fr)
Other versions
WO2009129340A4 (en
WO2009129340A2 (en
Inventor
Kevin L. Kilzer
Robert W. Ellis
Rudolph J Sterbenz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ADTRON Inc
Original Assignee
ADTRON Inc
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
Priority claimed from US12/103,273 external-priority patent/US8566505B2/en
Priority claimed from US12/103,277 external-priority patent/US8028123B2/en
Application filed by ADTRON Inc filed Critical ADTRON Inc
Publication of WO2009129340A2 publication Critical patent/WO2009129340A2/en
Publication of WO2009129340A3 publication Critical patent/WO2009129340A3/en
Publication of WO2009129340A4 publication Critical patent/WO2009129340A4/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Read Only Memory (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

Disclosed are techniques for flash memory management, including tracking payload data via one or more data structures configured to define the size of logical pages in a flash memory. In various embodiments, the logical page size may be larger than, equal to, or smaller than a physical page size of a flash memory chip. In other embodiments, defect information corresponding to a granularity smaller than a physical erase block size of a flash memory chip may be utilized. In still other embodiments, metadata and/or error correcting information are stored separately from payload data. In various embodiments, metadata and/or error correcting information are stored in a random access memory within a solid state drive.
PCT/US2009/040715 2008-04-15 2009-04-15 Flash memory management Ceased WO2009129340A2 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US4506008P 2008-04-15 2008-04-15
US12/103,273 US8566505B2 (en) 2008-04-15 2008-04-15 Flash management using sequential techniques
US12/103,273 2008-04-15
US61/045,060 2008-04-15
US12/103,277 2008-04-15
US12/103,277 US8028123B2 (en) 2008-04-15 2008-04-15 Circular wear leveling

Publications (3)

Publication Number Publication Date
WO2009129340A2 WO2009129340A2 (en) 2009-10-22
WO2009129340A3 true WO2009129340A3 (en) 2010-01-21
WO2009129340A4 WO2009129340A4 (en) 2010-03-25

Family

ID=41199716

Family Applications (3)

Application Number Title Priority Date Filing Date
PCT/US2009/040714 Ceased WO2009129339A2 (en) 2008-04-15 2009-04-15 Circular wear leveling
PCT/US2009/040715 Ceased WO2009129340A2 (en) 2008-04-15 2009-04-15 Flash memory management
PCT/US2009/040713 Ceased WO2009129338A2 (en) 2008-04-15 2009-04-15 Flash management using sequential techniques

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/US2009/040714 Ceased WO2009129339A2 (en) 2008-04-15 2009-04-15 Circular wear leveling

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/US2009/040713 Ceased WO2009129338A2 (en) 2008-04-15 2009-04-15 Flash management using sequential techniques

Country Status (1)

Country Link
WO (3) WO2009129339A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8959416B1 (en) 2011-12-16 2015-02-17 Western Digital Technologies, Inc. Memory defect management using signature identification
US8947961B2 (en) * 2013-03-12 2015-02-03 Macronix International Co., Ltd. Management of non-volatile memory
TWI653630B (en) * 2018-05-14 2019-03-11 慧榮科技股份有限公司 Method for accessing flash memory module and related flash memory controller and electronic device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5930504A (en) * 1996-07-22 1999-07-27 Intel Corporation Dynamic nonvolatile memory update in a computer system
US5963983A (en) * 1996-04-15 1999-10-05 International Business Machines Corporation Method and apparatus for dynamically creating conversion tables to access a semiconductor memory device
US20050021904A1 (en) * 2003-06-05 2005-01-27 Stmicroelectronics S.R.L. Mass memory device based on a flash memory with multiple buffers
US20060143365A1 (en) * 2002-06-19 2006-06-29 Tokyo Electron Device Limited Memory device, memory managing method and program
US7107389B2 (en) * 2002-08-29 2006-09-12 Matsushita Electric Industrial Co., Ltd. Semiconductor memory device and method for writing data into flash memory
US20080046630A1 (en) * 2006-08-21 2008-02-21 Sandisk Il Ltd. NAND flash memory controller exporting a logical sector-based interface

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6412080B1 (en) * 1999-02-23 2002-06-25 Microsoft Corporation Lightweight persistent storage system for flash memory devices
US20030163633A1 (en) * 2002-02-27 2003-08-28 Aasheim Jered Donald System and method for achieving uniform wear levels in a flash memory device
US7330927B1 (en) * 2003-05-07 2008-02-12 Avago Technologies General Ip (Singapore) Pte. Ltd. Apparatus and methodology for a pointer manager
US6906961B2 (en) * 2003-06-24 2005-06-14 Micron Technology, Inc. Erase block data splitting
US20050038792A1 (en) * 2003-08-14 2005-02-17 Johnson Ted C. Apparatus and method for operating circular files
US7139864B2 (en) * 2003-12-30 2006-11-21 Sandisk Corporation Non-volatile memory and method with block management system
US8607016B2 (en) * 2004-07-21 2013-12-10 Sandisk Technologies Inc. FAT analysis for optimized sequential cluster management
US20070276973A1 (en) * 2004-09-30 2007-11-29 Intel Corporation Managing queues
US7464243B2 (en) * 2004-12-21 2008-12-09 Cisco Technology, Inc. Method and apparatus for arbitrarily initializing a portion of memory
US7509474B2 (en) * 2005-06-08 2009-03-24 Micron Technology, Inc. Robust index storage for non-volatile memory
JP2007272635A (en) * 2006-03-31 2007-10-18 Toshiba Corp Memory system and controller

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5963983A (en) * 1996-04-15 1999-10-05 International Business Machines Corporation Method and apparatus for dynamically creating conversion tables to access a semiconductor memory device
US5930504A (en) * 1996-07-22 1999-07-27 Intel Corporation Dynamic nonvolatile memory update in a computer system
US20060143365A1 (en) * 2002-06-19 2006-06-29 Tokyo Electron Device Limited Memory device, memory managing method and program
US7107389B2 (en) * 2002-08-29 2006-09-12 Matsushita Electric Industrial Co., Ltd. Semiconductor memory device and method for writing data into flash memory
US20050021904A1 (en) * 2003-06-05 2005-01-27 Stmicroelectronics S.R.L. Mass memory device based on a flash memory with multiple buffers
US20080046630A1 (en) * 2006-08-21 2008-02-21 Sandisk Il Ltd. NAND flash memory controller exporting a logical sector-based interface

Also Published As

Publication number Publication date
WO2009129339A2 (en) 2009-10-22
WO2009129339A3 (en) 2010-03-04
WO2009129339A4 (en) 2010-04-22
WO2009129338A2 (en) 2009-10-22
WO2009129338A3 (en) 2010-02-25
WO2009129340A4 (en) 2010-03-25
WO2009129338A8 (en) 2009-12-10
WO2009129338A4 (en) 2010-04-08
WO2009129340A2 (en) 2009-10-22

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