JPS5284928A - Defect admitting memory - Google Patents

Defect admitting memory

Info

Publication number
JPS5284928A
JPS5284928A JP3831276A JP3831276A JPS5284928A JP S5284928 A JPS5284928 A JP S5284928A JP 3831276 A JP3831276 A JP 3831276A JP 3831276 A JP3831276 A JP 3831276A JP S5284928 A JPS5284928 A JP S5284928A
Authority
JP
Japan
Prior art keywords
admitting
defect
memory
defect admitting
admitting memory
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.)
Pending
Application number
JP3831276A
Other languages
English (en)
Japanese (ja)
Inventor
Emu Oonijiian Suran
Ei Seitochitsuku Jierarudo
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.)
Unisys Corp
Original Assignee
Sperry Rand 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 Sperry Rand Corp filed Critical Sperry Rand Corp
Publication of JPS5284928A publication Critical patent/JPS5284928A/ja
Pending 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
    • G11C29/70—Masking faults in memories by using spares or by reconfiguring
    • G11C29/86—Masking faults in memories by using spares or by reconfiguring in serial access memories, e.g. shift registers, CCDs, bubble memories

Landscapes

  • For Increasing The Reliability Of Semiconductor Memories (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Hardware Redundancy (AREA)
JP3831276A 1975-04-07 1976-04-07 Defect admitting memory Pending JPS5284928A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US56589475A 1975-04-07 1975-04-07

Publications (1)

Publication Number Publication Date
JPS5284928A true JPS5284928A (en) 1977-07-14

Family

ID=24260560

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3831276A Pending JPS5284928A (en) 1975-04-07 1976-04-07 Defect admitting memory

Country Status (6)

Country Link
US (1) US4073012A (enExample)
JP (1) JPS5284928A (enExample)
DE (1) DE2614664C3 (enExample)
FR (1) FR2307332A1 (enExample)
GB (1) GB1540649A (enExample)
IT (1) IT1063861B (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4168534A (en) * 1976-04-23 1979-09-18 Hitachi, Ltd. Shift register type memory device consisting of a plurality of memory chips
US4354253A (en) * 1976-12-17 1982-10-12 Texas Instruments Incorporated Bubble redundancy map storage using non-volatile semiconductor memory
DE2817134C2 (de) * 1977-04-20 1981-09-24 Hitachi, Ltd. Speichersteuersystem
US4090251A (en) * 1977-06-09 1978-05-16 Texas Instruments Incorporated Bubble memory redundancy storage
US4458334A (en) * 1977-05-16 1984-07-03 Texas Instruments Incorporated Redundancy map storage for bubble memories
GB1596990A (en) * 1977-05-16 1981-09-03 Texas Instruments Inc Bubble memory redundancy storage
US4139886A (en) * 1977-10-28 1979-02-13 Control Data Corporation Fault tolerant system for bubble memories
US4202043A (en) * 1977-11-03 1980-05-06 Burroughs Corporation Bubble memory defect tolerant logic control circuit
US4225941A (en) * 1978-10-30 1980-09-30 Trw Inc. Controller for bubble memories
US4270186A (en) * 1979-05-31 1981-05-26 Sperry Corporation Multiple generator block replicate bubble memory device
US4291389A (en) * 1979-11-20 1981-09-22 Control Data Corporation Memory system using faulty bubble memory devices
NL8202364A (nl) * 1982-06-11 1984-01-02 Philips Nv Serie-parallel-serie schuifregistergeheugen, waarbij het parallelopslagregister mede redundante enkelvoudige opslagregisters bevat, en afbeeldtoestel, voorzien van een zodanig georganiseerd beeldgeheugen.
NL8202365A (nl) * 1982-06-11 1984-01-02 Philips Nv Serie-parallel-serie schuifregistergeheugen, hetwelk redundante parallelgeschakelde opslagregisters bevat, en afbeeldtoestel, voorzien van een zodanig georganiseerd beeldgeheugen.
US4759020A (en) * 1985-09-25 1988-07-19 Unisys Corporation Self-healing bubble memories
EP0389203A3 (en) * 1989-03-20 1993-05-26 Fujitsu Limited Semiconductor memory device having information indicative of presence of defective memory cells

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1963895C3 (de) * 1969-06-21 1973-11-29 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Datenspeicher und Datenspeicher anste'uerschaltung
US3909810A (en) * 1974-02-25 1975-09-30 Texas Instruments Inc Bubble memory minor loop redundancy scheme
US4001673A (en) * 1975-06-30 1977-01-04 International Business Machines Corporation Method of testing and repairing magnetic bubble domain chip

Also Published As

Publication number Publication date
DE2614664B2 (de) 1977-12-15
IT1063861B (it) 1985-02-18
DE2614664C3 (de) 1983-06-16
GB1540649A (en) 1979-02-14
FR2307332A1 (fr) 1976-11-05
US4073012A (en) 1978-02-07
FR2307332B1 (enExample) 1982-07-30
DE2614664A1 (de) 1976-10-14

Similar Documents

Publication Publication Date Title
JPS5283074A (en) Semiconductor memory
JPS51118928A (en) Memory expandor
CS222228B2 (en) Digital memory
JPS5283183A (en) Memory cell
JPS5287379A (en) Semiconductor memory
JPS5239387A (en) Semiconductor memory
ZA761032B (en) Inspection machine memory
GB1551450A (en) Buffer memory apparatus
JPS51114036A (en) Semiconductor memory
JPS526089A (en) Semiconductor memory
JPS52137A (en) Memory cell
JPS5255440A (en) Memory cell
JPS5284928A (en) Defect admitting memory
JPS5255336A (en) Memory cell
GB1541644A (en) Resynchronizable memory
JPS51118340A (en) Nonnvolatile semiconductor memory
JPS5212584A (en) Semiconductor memory
JPS5274383A (en) Xxray tester
JPS51123021A (en) Memory
IE42579L (en) Memory circuit
JPS51115741A (en) Memory cell
JPS5277546A (en) Memory cell
JPS564199A (en) Memory unit
JPS5220893A (en) Tester
JPS5257742A (en) Memory