TWI562151B - Methods and apparatus for soft data generation for memory devices based on performance factor adjustment - Google Patents

Methods and apparatus for soft data generation for memory devices based on performance factor adjustment

Info

Publication number
TWI562151B
TWI562151B TW098133227A TW98133227A TWI562151B TW I562151 B TWI562151 B TW I562151B TW 098133227 A TW098133227 A TW 098133227A TW 98133227 A TW98133227 A TW 98133227A TW I562151 B TWI562151 B TW I562151B
Authority
TW
Taiwan
Prior art keywords
methods
memory devices
data generation
devices based
soft data
Prior art date
Application number
TW098133227A
Other languages
English (en)
Other versions
TW201019328A (en
Inventor
Erich F Haratsch
Johnson Yen
Original Assignee
Lsi Corp
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 PCT/US2009/049333 external-priority patent/WO2010002948A1/en
Application filed by Lsi Corp filed Critical Lsi Corp
Publication of TW201019328A publication Critical patent/TW201019328A/zh
Application granted granted Critical
Publication of TWI562151B publication Critical patent/TWI562151B/zh

Links

Classifications

    • 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
    • G11C16/34—Determination of programming status, e.g. threshold voltage, overprogramming or underprogramming, retention
    • 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
    • G11C16/26—Sensing or reading circuits; Data output circuits
    • 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
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1008—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices
    • G06F11/1012—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices using codes or arrangements adapted for a specific type of error
    • 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
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/02—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
    • G11C11/16—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using elements in which the storage effect is based on magnetic spin effect
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/56—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using storage elements with more than two stable states represented by steps, e.g. of voltage, current, phase, frequency
    • G11C11/5607—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using storage elements with more than two stable states represented by steps, e.g. of voltage, current, phase, frequency using magnetic storage elements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/56—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using storage elements with more than two stable states represented by steps, e.g. of voltage, current, phase, frequency
    • G11C11/5621—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using storage elements with more than two stable states represented by steps, e.g. of voltage, current, phase, frequency using charge storage in a floating gate
    • G11C11/5642—Sensing or reading circuits; Data output circuits
    • 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
    • G11C16/34—Determination of programming status, e.g. threshold voltage, overprogramming or underprogramming, retention
    • G11C16/3418—Disturbance prevention or evaluation; Refreshing of disturbed memory data
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
    • G11C7/02—Arrangements for writing information into, or reading information out from, a digital store with means for avoiding parasitic signals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
    • G11C7/04—Arrangements for writing information into, or reading information out from, a digital store with means for avoiding disturbances due to temperature effects
    • 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
    • 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
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1008—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices
    • G06F11/1068—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices in sector programmable memories, e.g. flash disk
    • 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
    • G06F2212/20—Employing a main memory using a specific memory technology
    • G06F2212/202—Non-volatile memory
    • G06F2212/2022—Flash memory
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C2211/00—Indexing scheme relating to digital stores characterized by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C2211/56—Indexing scheme relating to G11C11/56 and sub-groups for features not covered by these groups
    • G11C2211/563—Multilevel memory reading aspects
    • G11C2211/5634—Reference cells
TW098133227A 2008-09-30 2009-09-30 Methods and apparatus for soft data generation for memory devices based on performance factor adjustment TWI562151B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US19475108P 2008-09-30 2008-09-30
PCT/US2009/049333 WO2010002948A1 (en) 2008-07-01 2009-06-30 Methods and apparatus for soft demapping and intercell interference mitigation in flash memories

Publications (2)

Publication Number Publication Date
TW201019328A TW201019328A (en) 2010-05-16
TWI562151B true TWI562151B (en) 2016-12-11

Family

ID=42073862

Family Applications (4)

Application Number Title Priority Date Filing Date
TW098133217A TWI517162B (zh) 2008-09-30 2009-09-30 用於記憶體裝置之軟性資料產生的設備及方法
TW098133219A TW201019327A (en) 2008-09-30 2009-09-30 Methods and apparatus for soft data generation for memory devices using reference cells
TW098133227A TWI562151B (en) 2008-09-30 2009-09-30 Methods and apparatus for soft data generation for memory devices based on performance factor adjustment
TW098133247A TWI581269B (zh) 2008-09-30 2009-09-30 利用解碼器效能回饋用於記憶體裝置之軟性資料產生的設備及方法

Family Applications Before (2)

Application Number Title Priority Date Filing Date
TW098133217A TWI517162B (zh) 2008-09-30 2009-09-30 用於記憶體裝置之軟性資料產生的設備及方法
TW098133219A TW201019327A (en) 2008-09-30 2009-09-30 Methods and apparatus for soft data generation for memory devices using reference cells

Family Applications After (1)

Application Number Title Priority Date Filing Date
TW098133247A TWI581269B (zh) 2008-09-30 2009-09-30 利用解碼器效能回饋用於記憶體裝置之軟性資料產生的設備及方法

Country Status (8)

Country Link
US (4) US8830748B2 (zh)
EP (4) EP2340541A1 (zh)
JP (4) JP5535219B2 (zh)
KR (3) KR20110061650A (zh)
CN (4) CN102203877B (zh)
IL (4) IL211895A0 (zh)
TW (4) TWI517162B (zh)
WO (4) WO2010039874A1 (zh)

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