JPS57208697A - Semiconductor storage device - Google Patents
Semiconductor storage deviceInfo
- Publication number
- JPS57208697A JPS57208697A JP56093339A JP9333981A JPS57208697A JP S57208697 A JPS57208697 A JP S57208697A JP 56093339 A JP56093339 A JP 56093339A JP 9333981 A JP9333981 A JP 9333981A JP S57208697 A JPS57208697 A JP S57208697A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- data
- memory
- expected value
- fail
- 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
- G11C8/00—Arrangements for selecting an address in a digital store
- G11C8/12—Group selection circuits, e.g. for memory block selection, chip selection, array selection
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
- G11C29/04—Detection or location of defective memory elements, e.g. cell constructio details, timing of test signals
- G11C29/08—Functional testing, e.g. testing during refresh, power-on self testing [POST] or distributed testing
- G11C29/12—Built-in arrangements for testing, e.g. built-in self testing [BIST] or interconnection details
- G11C29/18—Address generation devices; Devices for accessing memories, e.g. details of addressing circuits
- G11C29/26—Accessing multiple arrays
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
- G11C29/04—Detection or location of defective memory elements, e.g. cell constructio details, timing of test signals
- G11C29/08—Functional testing, e.g. testing during refresh, power-on self testing [POST] or distributed testing
- G11C29/12—Built-in arrangements for testing, e.g. built-in self testing [BIST] or interconnection details
- G11C29/38—Response verification devices
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
- For Increasing The Reliability Of Semiconductor Memories (AREA)
Abstract
PURPOSE:To realize a large-capacity memory, by dividing a memory array into blocks, setting a coparator to each divided block to supply the common address signal and expected value signal and as a result decreasing the memory capacity in the inspection mode. CONSTITUTION:In the insepction mode, the data on a data line 7 is supplied to the input/output circuits 5A-5C. The data is then written into a storage cell of each of the memory array blocks 3A-3C which are selected by the X/Y decoders 1 and 2 and then read out to the circuits 5A-5C of each cell. Then the switches 12A and 12B which are controlled by the AND of the input read signal and the test signal and the OR of the block selecting signal, and the comparators 9A-9C and the fail registers 10A-10C function. In this case, the output of each circuit 5 is compared with the expected value data, and the fail signal is set to a corresponding register 10i when no coincidence is obtained in the above- mentioned comparison.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56093339A JPS57208697A (en) | 1981-06-16 | 1981-06-16 | Semiconductor storage device |
| US06/383,838 US4541090A (en) | 1981-06-09 | 1982-06-01 | Semiconductor memory device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56093339A JPS57208697A (en) | 1981-06-16 | 1981-06-16 | Semiconductor storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57208697A true JPS57208697A (en) | 1982-12-21 |
Family
ID=14079503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56093339A Pending JPS57208697A (en) | 1981-06-09 | 1981-06-16 | Semiconductor storage device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57208697A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6159700A (en) * | 1984-08-30 | 1986-03-27 | Mitsubishi Electric Corp | Semiconductor memory device |
| JPS61158099A (en) * | 1984-12-28 | 1986-07-17 | シーメンス、アクチエンゲゼルシヤフト | Integrated semiconductor memory |
| JPS63102098A (en) * | 1986-10-02 | 1988-05-06 | アメリカン テレフォン アンド テレグラフ カムパニー | Integrated circuit |
| JPH01282799A (en) * | 1988-05-07 | 1989-11-14 | Mitsubishi Electric Corp | Semiconductor storage |
| JPH04233045A (en) * | 1990-06-20 | 1992-08-21 | American Teleph & Telegr Co <Att> | Data compressing method and apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51147924A (en) * | 1975-06-13 | 1976-12-18 | Fujitsu Ltd | Memory unit |
| JPS52130533A (en) * | 1976-04-27 | 1977-11-01 | Fujitsu Ltd | Memory card tester |
| JPS5562598A (en) * | 1978-10-31 | 1980-05-12 | Nec Corp | Memory check unit |
| JPS5580897A (en) * | 1978-12-11 | 1980-06-18 | Toshiba Corp | Memory device diagnosis system |
-
1981
- 1981-06-16 JP JP56093339A patent/JPS57208697A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51147924A (en) * | 1975-06-13 | 1976-12-18 | Fujitsu Ltd | Memory unit |
| JPS52130533A (en) * | 1976-04-27 | 1977-11-01 | Fujitsu Ltd | Memory card tester |
| JPS5562598A (en) * | 1978-10-31 | 1980-05-12 | Nec Corp | Memory check unit |
| JPS5580897A (en) * | 1978-12-11 | 1980-06-18 | Toshiba Corp | Memory device diagnosis system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6159700A (en) * | 1984-08-30 | 1986-03-27 | Mitsubishi Electric Corp | Semiconductor memory device |
| JPS61158099A (en) * | 1984-12-28 | 1986-07-17 | シーメンス、アクチエンゲゼルシヤフト | Integrated semiconductor memory |
| JPS63102098A (en) * | 1986-10-02 | 1988-05-06 | アメリカン テレフォン アンド テレグラフ カムパニー | Integrated circuit |
| JPH01282799A (en) * | 1988-05-07 | 1989-11-14 | Mitsubishi Electric Corp | Semiconductor storage |
| JPH04233045A (en) * | 1990-06-20 | 1992-08-21 | American Teleph & Telegr Co <Att> | Data compressing method and apparatus |
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