CA1003963A - Nonvolatile random access memory cell - Google Patents

Nonvolatile random access memory cell

Info

Publication number
CA1003963A
CA1003963A CA180,619A CA180619A CA1003963A CA 1003963 A CA1003963 A CA 1003963A CA 180619 A CA180619 A CA 180619A CA 1003963 A CA1003963 A CA 1003963A
Authority
CA
Canada
Prior art keywords
memory cell
random access
access memory
nonvolatile random
nonvolatile
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
Application number
CA180,619A
Other languages
English (en)
Other versions
CA180619S (en
Inventor
Albert M. Schaffer
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.)
NCR Voyix Corp
Original Assignee
NCR 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 NCR Corp filed Critical NCR Corp
Application granted granted Critical
Publication of CA1003963A publication Critical patent/CA1003963A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C14/00—Digital stores characterised by arrangements of cells having volatile and non-volatile storage properties for back-up when the power is down
    • 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
    • G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
    • G11C11/34—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
    • G11C11/40—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors
    • G11C11/401—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells
    • G11C11/403—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells with charge regeneration common to a multiplicity of memory cells, i.e. external refresh
    • G11C11/405—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells with charge regeneration common to a multiplicity of memory cells, i.e. external refresh with three charge-transfer gates, e.g. MOS transistors, per cell
    • 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
    • G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
    • G11C11/34—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
    • G11C11/40—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors
    • G11C11/401—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells
    • G11C11/406—Management or control of the refreshing or charge-regeneration cycles
    • 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
    • G11C16/0466—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS comprising cells with charge storage in an insulating layer, e.g. metal-nitride-oxide-silicon [MNOS], silicon-oxide-nitride-oxide-silicon [SONOS]
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/353—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of field-effect transistors with internal or external positive feedback
    • H03K3/356—Bistable circuits
    • H03K3/356008—Bistable circuits ensuring a predetermined initial state when the supply voltage has been applied; storing the actual state when the supply voltage fails

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Dram (AREA)
  • Read Only Memory (AREA)
  • Static Random-Access Memory (AREA)
  • Semiconductor Memories (AREA)
  • Non-Volatile Memory (AREA)
CA180,619A 1972-10-16 1973-09-10 Nonvolatile random access memory cell Expired CA1003963A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29796272A 1972-10-16 1972-10-16

Publications (1)

Publication Number Publication Date
CA1003963A true CA1003963A (en) 1977-01-18

Family

ID=23148434

Family Applications (1)

Application Number Title Priority Date Filing Date
CA180,619A Expired CA1003963A (en) 1972-10-16 1973-09-10 Nonvolatile random access memory cell

Country Status (6)

Country Link
US (1) US3774177A (ru)
JP (1) JPS5644517B2 (ru)
CA (1) CA1003963A (ru)
DE (1) DE2351554C2 (ru)
FR (1) FR2203139B1 (ru)
GB (1) GB1401101A (ru)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2352607B2 (de) * 1972-10-20 1976-10-28 Hitachi, Ltd., Tokio Halbleiterspeicher
US3876991A (en) * 1973-07-11 1975-04-08 Bell Telephone Labor Inc Dual threshold, three transistor dynamic memory cell
US3922650A (en) * 1974-11-11 1975-11-25 Ncr Co Switched capacitor non-volatile mnos random access memory cell
US4675841A (en) * 1974-12-23 1987-06-23 Pitney Bowes Inc. Micro computerized electronic postage meter system
US3916390A (en) * 1974-12-31 1975-10-28 Ibm Dynamic memory with non-volatile back-up mode
NL7709046A (nl) * 1976-08-16 1978-02-20 Ncr Co Geheugencellen voor matrix-geheugens.
US4104734A (en) * 1977-06-30 1978-08-01 Fairchild Camera And Instrument Corporation Low voltage data retention bias circuitry for volatile memories
US4375086A (en) * 1980-05-15 1983-02-22 Ncr Corporation Volatile/non-volatile dynamic RAM system
JPS6044420U (ja) * 1983-08-31 1985-03-28 三菱重工業株式会社 電線布設装置
GB2310940A (en) * 1993-03-19 1997-09-10 Sven E Wahlstrom Inverting refresh circuit for an amplifying DRAM cell in an FPGA

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3508211A (en) * 1967-06-23 1970-04-21 Sperry Rand Corp Electrically alterable non-destructive readout field effect transistor memory
US3660827A (en) * 1969-09-10 1972-05-02 Litton Systems Inc Bistable electrical circuit with non-volatile storage capability
US3718915A (en) * 1971-06-07 1973-02-27 Motorola Inc Opposite conductivity gating circuit for refreshing information in semiconductor memory cells
BE788583A (fr) * 1971-09-16 1973-01-02 Intel Corp Cellule a trois lignes pour memoire a circuit integre a acces aleatoir
US3781570A (en) * 1971-11-22 1973-12-25 Rca Corp Storage circuit using multiple condition storage elements

Also Published As

Publication number Publication date
JPS5644517B2 (ru) 1981-10-20
JPS4974849A (ru) 1974-07-19
FR2203139B1 (ru) 1978-03-10
FR2203139A1 (ru) 1974-05-10
DE2351554C2 (de) 1983-12-15
DE2351554A1 (de) 1974-04-18
GB1401101A (en) 1975-07-16
US3774177A (en) 1973-11-20

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