JPS5673362A - Testing device of memory - Google Patents

Testing device of memory

Info

Publication number
JPS5673362A
JPS5673362A JP15090279A JP15090279A JPS5673362A JP S5673362 A JPS5673362 A JP S5673362A JP 15090279 A JP15090279 A JP 15090279A JP 15090279 A JP15090279 A JP 15090279A JP S5673362 A JPS5673362 A JP S5673362A
Authority
JP
Japan
Prior art keywords
output
memory
selector
generator
delayed
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
JP15090279A
Other languages
Japanese (ja)
Other versions
JPS6132757B2 (en
Inventor
Kenji Kimura
Shigeru Sugamori
Koji Ishikawa
Naoaki Narumi
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.)
Advantest Corp
NTT Inc
Original Assignee
Advantest Corp
Nippon Telegraph and Telephone Corp
Takeda Riken Industries Co 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 Advantest Corp, Nippon Telegraph and Telephone Corp, Takeda Riken Industries Co Ltd filed Critical Advantest Corp
Priority to JP15090279A priority Critical patent/JPS5673362A/en
Publication of JPS5673362A publication Critical patent/JPS5673362A/en
Publication of JPS6132757B2 publication Critical patent/JPS6132757B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Techniques For Improving Reliability Of Storages (AREA)
  • For Increasing The Reliability Of Semiconductor Memories (AREA)
  • Testing Of Individual Semiconductor Devices (AREA)
  • Tests Of Electronic Circuits (AREA)

Abstract

PURPOSE: To enable to generate mask patterns and to improve an activity efficiency by a method wherein a plural number of memory units for a pattern generator are installed.
CONSTITUTION: An address from a pattern generator 11 is delayed 21, and an output signal of the generator 11 or the delayed output is selected through a selector 22 to perform an access to a memory unit 23. And further, through a selector 24, the output signal of the generator 11 or the delayed output is selected to perform an access to a memory unit 25. And still, an output of the memory unit 23 or an output of the unit 25 is selected through a selector 26, or both outputs are fetched to be supplied to a comparator 16 and they are compared with the read output of the memory to be tested 13, or as for a certain address, a mask is performed to disregard a test. When a discord is obtained for a comparison output, in accordance therewith, a write control unit 29 is actuated, thus, performing a write control against the memory units 23, 25.
COPYRIGHT: (C)1981,JPO&Japio
JP15090279A 1979-11-21 1979-11-21 Testing device of memory Granted JPS5673362A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15090279A JPS5673362A (en) 1979-11-21 1979-11-21 Testing device of memory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15090279A JPS5673362A (en) 1979-11-21 1979-11-21 Testing device of memory

Publications (2)

Publication Number Publication Date
JPS5673362A true JPS5673362A (en) 1981-06-18
JPS6132757B2 JPS6132757B2 (en) 1986-07-29

Family

ID=15506875

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15090279A Granted JPS5673362A (en) 1979-11-21 1979-11-21 Testing device of memory

Country Status (1)

Country Link
JP (1) JPS5673362A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63177772U (en) * 1987-05-08 1988-11-17

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63177772U (en) * 1987-05-08 1988-11-17

Also Published As

Publication number Publication date
JPS6132757B2 (en) 1986-07-29

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