JPS5284928A - Defect admitting memory - Google Patents
Defect admitting memoryInfo
- 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
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)
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 (ja) |
JP (1) | JPS5284928A (ja) |
DE (1) | DE2614664C3 (ja) |
FR (1) | FR2307332A1 (ja) |
GB (1) | GB1540649A (ja) |
IT (1) | IT1063861B (ja) |
Families Citing this family (15)
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 |
US4458334A (en) * | 1977-05-16 | 1984-07-03 | Texas Instruments Incorporated | Redundancy map storage for bubble memories |
US4090251A (en) * | 1977-06-09 | 1978-05-16 | Texas Instruments Incorporated | Bubble memory redundancy storage |
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)
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 |
-
1976
- 1976-04-01 FR FR7609488A patent/FR2307332A1/fr active Granted
- 1976-04-05 DE DE2614664A patent/DE2614664C3/de not_active Expired
- 1976-04-05 GB GB13650/76A patent/GB1540649A/en not_active Expired
- 1976-04-06 IT IT21972/76A patent/IT1063861B/it active
- 1976-04-07 JP JP3831276A patent/JPS5284928A/ja active Pending
- 1976-06-24 US US05/699,554 patent/US4073012A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE2614664A1 (de) | 1976-10-14 |
IT1063861B (it) | 1985-02-18 |
FR2307332A1 (fr) | 1976-11-05 |
DE2614664C3 (de) | 1983-06-16 |
GB1540649A (en) | 1979-02-14 |
DE2614664B2 (de) | 1977-12-15 |
US4073012A (en) | 1978-02-07 |
FR2307332B1 (ja) | 1982-07-30 |
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