WO2009129340A3 - Flash memory management - Google Patents
Flash memory management Download PDFInfo
- 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
Links
Classifications
-
- 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
- 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.
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 |
US12/103,277 US8028123B2 (en) | 2008-04-15 | 2008-04-15 | Circular wear leveling |
US61/045,060 | 2008-04-15 | ||
US12/103,273 | 2008-04-15 | ||
US12/103,277 | 2008-04-15 |
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 WO2009129339A2 (en) | 2008-04-15 | 2009-04-15 | Circular wear leveling |
PCT/US2009/040713 WO2009129338A2 (en) | 2008-04-15 | 2009-04-15 | Flash management using sequential techniques |
PCT/US2009/040715 WO2009129340A2 (en) | 2008-04-15 | 2009-04-15 | Flash memory management |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2009/040714 WO2009129339A2 (en) | 2008-04-15 | 2009-04-15 | Circular wear leveling |
PCT/US2009/040713 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)
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)
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)
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 |
-
2009
- 2009-04-15 WO PCT/US2009/040714 patent/WO2009129339A2/en active Application Filing
- 2009-04-15 WO PCT/US2009/040713 patent/WO2009129338A2/en active Application Filing
- 2009-04-15 WO PCT/US2009/040715 patent/WO2009129340A2/en active Application Filing
Patent Citations (6)
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 |
---|---|
WO2009129338A2 (en) | 2009-10-22 |
WO2009129338A3 (en) | 2010-02-25 |
WO2009129339A2 (en) | 2009-10-22 |
WO2009129339A3 (en) | 2010-03-04 |
WO2009129339A4 (en) | 2010-04-22 |
WO2009129338A8 (en) | 2009-12-10 |
WO2009129340A4 (en) | 2010-03-25 |
WO2009129340A2 (en) | 2009-10-22 |
WO2009129338A4 (en) | 2010-04-08 |
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