DE60312729D1 - Intelligente verifikation von speichern mit mehreren zuständen - Google Patents

Intelligente verifikation von speichern mit mehreren zuständen

Info

Publication number
DE60312729D1
DE60312729D1 DE60312729T DE60312729T DE60312729D1 DE 60312729 D1 DE60312729 D1 DE 60312729D1 DE 60312729 T DE60312729 T DE 60312729T DE 60312729 T DE60312729 T DE 60312729T DE 60312729 D1 DE60312729 D1 DE 60312729D1
Authority
DE
Germany
Prior art keywords
verify
states
state
sequence
sequential
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.)
Expired - Lifetime
Application number
DE60312729T
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English (en)
Other versions
DE60312729T2 (de
Inventor
Geoffrey S Gongwer
Daniel C Guterman
Yupin Kawing Fong
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.)
SanDisk Corp
Original Assignee
SanDisk 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
Application filed by SanDisk Corp filed Critical SanDisk Corp
Publication of DE60312729D1 publication Critical patent/DE60312729D1/de
Application granted granted Critical
Publication of DE60312729T2 publication Critical patent/DE60312729T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • 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
    • G11C11/5628—Programming or writing circuits; Data input circuits
    • G11C11/5635—Erasing circuits
    • 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
    • G11C11/5628—Programming or writing circuits; Data input 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
    • G11C16/06—Auxiliary circuits, e.g. for writing into memory
    • G11C16/34—Determination of programming status, e.g. threshold voltage, overprogramming or underprogramming, retention
    • G11C16/3436—Arrangements for verifying correct programming or erasure
    • G11C16/3454—Arrangements for verifying correct programming or for detecting overprogrammed cells
    • 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
    • G11C16/3436—Arrangements for verifying correct programming or erasure
    • G11C16/3454—Arrangements for verifying correct programming or for detecting overprogrammed cells
    • G11C16/3459—Circuits or methods to verify correct programming of nonvolatile memory cells
    • 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
    • G11C2211/562—Multilevel memory programming aspects
    • G11C2211/5621—Multilevel programming verification

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Read Only Memory (AREA)
  • For Increasing The Reliability Of Semiconductor Memories (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Hardware Redundancy (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
DE60312729T 2002-12-05 2003-12-01 Intelligente verifikation von speichern mit mehreren zuständen Expired - Lifetime DE60312729T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US314055 2002-12-05
US10/314,055 US7073103B2 (en) 2002-12-05 2002-12-05 Smart verify for multi-state memories
PCT/US2003/038076 WO2004053882A1 (en) 2002-12-05 2003-12-01 Smart verify for multi-state memories

Publications (2)

Publication Number Publication Date
DE60312729D1 true DE60312729D1 (de) 2007-05-03
DE60312729T2 DE60312729T2 (de) 2007-12-06

Family

ID=32468407

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60312729T Expired - Lifetime DE60312729T2 (de) 2002-12-05 2003-12-01 Intelligente verifikation von speichern mit mehreren zuständen

Country Status (10)

Country Link
US (3) US7073103B2 (de)
EP (1) EP1568041B1 (de)
JP (1) JP4382675B2 (de)
KR (1) KR101017321B1 (de)
CN (1) CN1720586B (de)
AT (1) ATE357727T1 (de)
AU (1) AU2003296003A1 (de)
DE (1) DE60312729T2 (de)
TW (1) TWI314325B (de)
WO (1) WO2004053882A1 (de)

Families Citing this family (219)

* Cited by examiner, † Cited by third party
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