KR101194965B1 - 플래시 메모리 시스템 제어 방식 - Google Patents
플래시 메모리 시스템 제어 방식 Download PDFInfo
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- KR101194965B1 KR101194965B1 KR1020087026519A KR20087026519A KR101194965B1 KR 101194965 B1 KR101194965 B1 KR 101194965B1 KR 1020087026519 A KR1020087026519 A KR 1020087026519A KR 20087026519 A KR20087026519 A KR 20087026519A KR 101194965 B1 KR101194965 B1 KR 101194965B1
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/10—Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
- G11C7/1015—Read-write modes for single port memories, i.e. having either a random port or a serial port
- G11C7/1042—Read-write modes for single port memories, i.e. having either a random port or a serial port using interleaving techniques, i.e. read-write of one part of the memory while preparing another part
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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
- G11C16/04—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS
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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
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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
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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
- G11C16/32—Timing circuits
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/10—Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
- G11C7/1015—Read-write modes for single port memories, i.e. having either a random port or a serial port
- G11C7/1018—Serial bit line access mode, e.g. using bit line address shift registers, bit line address counters, bit line burst counters
- G11C7/1021—Page serial bit line access mode, i.e. using an enabled row address stroke pulse with its associated word line address and a sequence of enabled column address stroke pulses each with its associated bit line address
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- 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
- G06F2212/1036—Life time enhancement
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- 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
- G06F2212/7211—Wear leveling
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2216/00—Indexing scheme relating to G11C16/00 and subgroups, for features not directly covered by these groups
- G11C2216/12—Reading and writing aspects of erasable programmable read-only memories
- G11C2216/22—Nonvolatile memory in which reading can be carried out from one memory bank or array whilst a word or sector in another bank or array is being erased or programmed simultaneously
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2216/00—Indexing scheme relating to G11C16/00 and subgroups, for features not directly covered by these groups
- G11C2216/12—Reading and writing aspects of erasable programmable read-only memories
- G11C2216/24—Nonvolatile memory in which programming can be carried out in one memory bank or array whilst a word or sector in another bank or array is being erased simultaneously
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Read Only Memory (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
Abstract
Description
Claims (25)
- 복수의 플래시 메모리 장치를 갖는 플래시 메모리 시스템에서의 고속 웨어 레벨링 프로그래밍 방법으로서,ⅰ) k 페이지(k는 0보다 큰 정수)를 갖는 데이터 파일을 수신하는 단계;ⅱ) z=k/i의 실링(ceiling) 함수를 계산함으로써, k의 크기에 대응하는 프로그래밍 프로파일과 상기 플래시 메모리 시스템의 설정 파라미터를 선택하는 단계로서, 상기 설정 파라미터는 j의 플래시 메모리 장치를 포함하고, 상기 j의 플래시 메모리 장치의 각각은 블록당 i 페이지를 갖고, 여기서 j와 i는 0보다 큰 정수 값인, 단계; 및ⅲ) z가 j보다 클 때 다중 파일 구조를 포함하는 프로그래밍 프로파일에 따라서 복수의 플래시 메모리 장치중 적어도 2개의 각각의 데이터 파일의 k 페이지 중 적어도 하나를 프로그래밍하는 단계로서, 상기 다중 파일 구조는 j의 플래시 메모리 장치에 데이터 파일의 j*i 페이지의 m 유닛을 저장하는 단계와, z가 j이하일 때 j의 플래시 메모리 장치중 z에서 데이터 파일의 k-(m*(j*i)) 페이지를 저장하는 단계를 포함하며, 여기서 m은 0보다 큰 정수값인, 단계를 포함하는, 플래시 메모리 시스템에서의 고속 웨어 레벨링 프로그래밍 방법.
- 청구항 1에 있어서,상기 프로그래밍 단계는, 데이터 파일의 j*i 페이지를 프로그래밍하기 위해 j의 플래시 메모리 장치의 각각에 프로그램 커맨드들을 순차적으로 제공하는 단계로서, 각 프로그램 커맨드는 k페이지 중 적어도 하나를 프로그래밍하기 위한 것인, 단계를 포함하는, 플래시 메모리 시스템에서의 고속 웨어 레벨링 프로그래밍 방법.
- 청구항 2에 있어서,상기 프로그래밍 단계는 k-(m*(j*i)) 페이지를 프로그래밍하기 위해 z의 플래시 메모리 장치의 각각에 프로그램 커맨드들을 순차적으로 제공하는 단계로서, 각 프로그램 커맨드는 k페이지 중 적어도 하나를 프로그래밍하기 위한 것인, 단계를 포함하는, 플래시 메모리 시스템에서의 고속 웨어 레벨링 프로그래밍 방법.
- 청구항 1에 있어서,상기 복수의 플래시 메모리 장치 중 적어도 2개는 서로 직렬로 접속되는, 플래시 메모리 시스템에서의 고속 웨어 레벨링 프로그래밍 방법.
- 청구항 4에 있어서,상기 적어도 2개의 복수의 플래시 메모리 장치 중 제1 플래시 메모리 장치가 제1 커맨드에 응답하여 제1 프로그래밍 동작을 행하고, 상기 제1 플래시 메모리 장치가 상기 제1 동작을 행하고 있는 동안, 상기 적어도 2개의 복수의 플래시 메모리 장치 중 제2 플래시 메모리 장치는 제2 커맨드에 응답하여 제2 프로그래밍 동작을 시작하는, 플래시 메모리 시스템에서의 고속 웨어 레벨링 프로그래밍 방법.
- 청구항 5에 있어서,상기 제2 플래시 메모리 장치가 상기 제2 프로그래밍 동작을 시작하기 전에, 상기 제2 커맨드가 상기 제1 플래시 메모리 장치를 통해서 상기 제2 플래시 메모리 장치로 전달되는, 플래시 메모리 시스템에서의 고속 웨어 레벨링 프로그래밍 방법.
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Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US78808306P | 2006-03-31 | 2006-03-31 | |
US60/788,083 | 2006-03-31 | ||
PCT/CA2007/000501 WO2007112555A1 (en) | 2006-03-31 | 2007-03-29 | Flash memory system control scheme |
Publications (2)
Publication Number | Publication Date |
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KR20090017494A KR20090017494A (ko) | 2009-02-18 |
KR101194965B1 true KR101194965B1 (ko) | 2012-10-25 |
Family
ID=38563033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020087026519A Expired - Fee Related KR101194965B1 (ko) | 2006-03-31 | 2007-03-29 | 플래시 메모리 시스템 제어 방식 |
Country Status (10)
Country | Link |
---|---|
US (2) | US7802064B2 (ko) |
EP (2) | EP2242058B1 (ko) |
JP (1) | JP5214587B2 (ko) |
KR (1) | KR101194965B1 (ko) |
CN (2) | CN102063931B (ko) |
AT (1) | ATE488009T1 (ko) |
DE (1) | DE602007010439D1 (ko) |
ES (1) | ES2498096T3 (ko) |
TW (2) | TW201445576A (ko) |
WO (1) | WO2007112555A1 (ko) |
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CN102063931A (zh) | 2011-05-18 |
TW200805396A (en) | 2008-01-16 |
EP2242058A2 (en) | 2010-10-20 |
JP2009531747A (ja) | 2009-09-03 |
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ES2498096T3 (es) | 2014-09-24 |
EP2002442A4 (en) | 2009-05-06 |
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