JPS51146126A - Memory device - Google Patents

Memory device

Info

Publication number
JPS51146126A
JPS51146126A JP50069548A JP6954875A JPS51146126A JP S51146126 A JPS51146126 A JP S51146126A JP 50069548 A JP50069548 A JP 50069548A JP 6954875 A JP6954875 A JP 6954875A JP S51146126 A JPS51146126 A JP S51146126A
Authority
JP
Japan
Prior art keywords
memory device
words
reserve module
replacement
defective
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.)
Granted
Application number
JP50069548A
Other languages
Japanese (ja)
Other versions
JPS5647639B2 (en
Inventor
Shingo Murata
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP50069548A priority Critical patent/JPS51146126A/en
Publication of JPS51146126A publication Critical patent/JPS51146126A/en
Publication of JPS5647639B2 publication Critical patent/JPS5647639B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Techniques For Improving Reliability Of Storages (AREA)
  • Hardware Redundancy (AREA)

Abstract

PURPOSE: A memory device, that improves utility efficiency of reserve module when replacement of defective words and good words is made by use of reserve module.
COPYRIGHT: (C)1976,JPO&Japio
JP50069548A 1975-06-11 1975-06-11 Memory device Granted JPS51146126A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50069548A JPS51146126A (en) 1975-06-11 1975-06-11 Memory device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50069548A JPS51146126A (en) 1975-06-11 1975-06-11 Memory device

Publications (2)

Publication Number Publication Date
JPS51146126A true JPS51146126A (en) 1976-12-15
JPS5647639B2 JPS5647639B2 (en) 1981-11-11

Family

ID=13405873

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50069548A Granted JPS51146126A (en) 1975-06-11 1975-06-11 Memory device

Country Status (1)

Country Link
JP (1) JPS51146126A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997011487A1 (en) * 1995-09-20 1997-03-27 Hitachi, Ltd. Semiconductor device and method of producing the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997011487A1 (en) * 1995-09-20 1997-03-27 Hitachi, Ltd. Semiconductor device and method of producing the same

Also Published As

Publication number Publication date
JPS5647639B2 (en) 1981-11-11

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