JPS5341946A - Memory system - Google Patents

Memory system

Info

Publication number
JPS5341946A
JPS5341946A JP11586276A JP11586276A JPS5341946A JP S5341946 A JPS5341946 A JP S5341946A JP 11586276 A JP11586276 A JP 11586276A JP 11586276 A JP11586276 A JP 11586276A JP S5341946 A JPS5341946 A JP S5341946A
Authority
JP
Japan
Prior art keywords
memory system
memory
menory
yeild
trouble
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
JP11586276A
Other languages
Japanese (ja)
Inventor
Tsuneo Ito
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 JP11586276A priority Critical patent/JPS5341946A/en
Publication of JPS5341946A publication Critical patent/JPS5341946A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To increase the production yeild for the memory by providing an extra and auxiliary memory cell line to the memory array and securing a repair for the defect or trouble of the menory cell.
COPYRIGHT: (C)1978,JPO&Japio
JP11586276A 1976-09-29 1976-09-29 Memory system Pending JPS5341946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11586276A JPS5341946A (en) 1976-09-29 1976-09-29 Memory system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11586276A JPS5341946A (en) 1976-09-29 1976-09-29 Memory system

Publications (1)

Publication Number Publication Date
JPS5341946A true JPS5341946A (en) 1978-04-15

Family

ID=14672979

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11586276A Pending JPS5341946A (en) 1976-09-29 1976-09-29 Memory system

Country Status (1)

Country Link
JP (1) JPS5341946A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4389715A (en) * 1980-10-06 1983-06-21 Inmos Corporation Redundancy scheme for a dynamic RAM
JPS58196696A (en) * 1982-05-11 1983-11-16 Mitsubishi Electric Corp Ultraviolet ray erasion type memory device
US4611494A (en) * 1983-11-10 1986-09-16 Kabushiki Kaisha Toshiba Ultrasonic imaging apparatus using digital control
US4725742A (en) * 1985-05-24 1988-02-16 Hitachi, Ltd. Semiconductor integrated circuit having a tree circuit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4389715A (en) * 1980-10-06 1983-06-21 Inmos Corporation Redundancy scheme for a dynamic RAM
JPS58196696A (en) * 1982-05-11 1983-11-16 Mitsubishi Electric Corp Ultraviolet ray erasion type memory device
JPS6233679B2 (en) * 1982-05-11 1987-07-22 Mitsubishi Electric Corp
US4611494A (en) * 1983-11-10 1986-09-16 Kabushiki Kaisha Toshiba Ultrasonic imaging apparatus using digital control
US4725742A (en) * 1985-05-24 1988-02-16 Hitachi, Ltd. Semiconductor integrated circuit having a tree circuit

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