WO2007032194A1 - 試験装置、試験方法、解析装置及びプログラム - Google Patents
試験装置、試験方法、解析装置及びプログラム Download PDFInfo
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- WO2007032194A1 WO2007032194A1 PCT/JP2006/316638 JP2006316638W WO2007032194A1 WO 2007032194 A1 WO2007032194 A1 WO 2007032194A1 JP 2006316638 W JP2006316638 W JP 2006316638W WO 2007032194 A1 WO2007032194 A1 WO 2007032194A1
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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
- G11C29/56—External testing equipment for static stores, e.g. automatic test equipment [ATE]; Interfaces therefor
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
- G11C29/56—External testing equipment for static stores, e.g. automatic test equipment [ATE]; Interfaces therefor
- G11C29/56008—Error analysis, representation of errors
-
- 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
-
- 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
- G11C2029/2602—Concurrent test
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
- G11C29/56—External testing equipment for static stores, e.g. automatic test equipment [ATE]; Interfaces therefor
- G11C2029/5602—Interface to device under test
Definitions
- Test apparatus test method, analysis apparatus, and program
- the present invention relates to a test apparatus, a test method, an analysis apparatus, and a program.
- the present invention relates to a test apparatus, a test method, an analysis apparatus, and a program for finding a remedy for a defective memory cell in a memory under test.
- FIG. 5 shows a configuration of a conventional test apparatus 100 that seeks a remedy for replacing a defective memory cell in a semiconductor memory with a spare cell (see Non-Patent Document 1, for example).
- the test apparatus 100 includes a plurality of test signal supply units 120, a plurality of defect detection units 130, a plurality of fail memories 140, and a plurality of analysis units 150.
- the plurality of test signal supply units 120 supply test signals to the corresponding memory under test 110.
- the plurality of defect detection units 130 detect information (failure information) that identifies a storage cell of a defect in the memory under test 110 based on the data read according to the test signal, and correspond to the detected fail information.
- Write to fail memory 140 The fail information written in the fail memory 140 is transferred to the corresponding analysis unit 150 when the test on the corresponding memory under test 110 is completed.
- the plurality of analysis units 150 obtain a repair solution for the corresponding memory under test 110 based on the transferred fail information.
- the plurality of analysis units 150 perform processing for obtaining a repair solution in parallel with the test performed by the test signal supply unit 120 and the defect detection unit 130.
- Non-Patent Document 1 Jin-Fu Li, 6 others, "A Built-in Self-Repair Scheme for Semiconductor Memories with 2-D Redundancy", INTERNATONAL TEST CONFERENCE, INT ERNATONAL TEST CONFERENCE 2003 PROCEEDINGS, September 30, 2003 , P.3 Disclosure of the invention
- FIG. 6 shows a processing time when the memory under test 110 is tested for each of a plurality of groups by the conventional test apparatus 100.
- the time that the test apparatus 100 spends on analyzing the rescue solution differs for each individual memory under test 110. Therefore, even if each analysis unit 150 starts analysis on a plurality of memories under test 110 at the same time, the end time of the analysis differs individually. Furthermore, since the solution of the rescue solution is NP-complete, it is unclear until the analysis is completed how much time is required for the analysis. For this reason, even if the test by the test signal supply unit 120 and the defect detection unit 130 performed in parallel is completed, the analysis unit 150 in which the analysis is not completed may occur.
- each defect detection unit 130 performs a test on the next memory under test 110. Can't start. Therefore, when the test apparatus 100 tests the memory under test 110 for each of a plurality of groups, if the analysis time is long in the group and there is also one memory under test 110, the test apparatus 100 Everything becomes untestable. As a result, the waiting time X until the start of the test of the next group becomes long, and the throughput of the test apparatus 100 decreases.
- an object of the present invention is to provide a test apparatus, a test method, an analysis apparatus, and a program that can solve the above-described problems.
- This object is achieved by a combination of features described in the independent claims. Further, the dependent claims define further advantageous specific examples of the present invention.
- a test apparatus for testing a plurality of memories under test, each provided for each memory under test.
- a plurality of test signal supply units for supplying a test signal for testing the memory under test to the memory under test, and corresponding to each memory under test, according to the test signal from the corresponding memory under test
- a plurality of defect detection units for detecting a defect of the memory under test when the read data does not match the expected value; In order to remedy a defect in the memory under test by replacing each defective memory cell in the corresponding memory under test with a spare cell provided in correspondence with the test memory.
- Analysis unit power A test apparatus is provided that includes a second analysis unit that takes over the analysis process of the repair solution and obtains the repair solution.
- the plurality of first analysis units are the first plurality of tested devices already tested in parallel with the test of the second plurality of memories under test by the plurality of test signal supply units and the plurality of defect detection units. Analyzing the repair solution for the memory, the second analysis unit analyzes the repair solution in response to the completion of the test of the second plurality of memories under test by the plurality of test signal supply units and the plurality of defect detection units. The first analysis unit has not completed the analysis process of the rescue solution, and the plurality of first analysis units can test the second plurality of memories under test by the plurality of test signal supply units and the plurality of defect detection units. In response to the completion, analysis of the repair solution may be started for the second plurality of memories under test.
- the plurality of first analysis units may include a plurality of second plurality of devices under test that have already been tested in parallel with the test of the third plurality of memories under test by the plurality of test signal supply units and the plurality of defect detection units.
- the repair solution is analyzed for the memory, the test of the third plurality of memories under test by the plurality of test signal supply units and the plurality of defect detection units is completed, and the first plurality of memories under test by the second analysis unit
- the plurality of first analysis units may perform the second plurality of tests under test until the analysis of the rescue solution by the second analysis unit is completed. Continue to analyze the previous rescue solution for the memory!
- the second analysis unit determines in advance that the number of first analysis units that have not finished the analysis of the repair solution Takes over the analysis process of the rescue solution on condition that it is below the specified threshold It's okay.
- the second analysis unit analyzes the memory under test with fewer defective memory cells. May be executed prior to the analysis processing for the memory under test having more defective memory cells.
- Each failure detection unit when the data read from the corresponding memory under test according to the test signal does not match the expected value, provides fail information that identifies the storage cell of the failure in the memory under test.
- Each of the first analysis units analyzes the repair solution based on the fail information and uses the repair solution at the timing when the analysis of the repair solution can be started for a plurality of different memories under test. In this case, the failure information is transmitted to the second analysis unit, and the second analysis unit responds to the fail information based on the fail information received from the first analysis unit. Start analyzing the rescue solution.
- the second analysis unit is assigned to at least one first analysis unit in parallel with the plurality of first analysis units, provided that the second analysis unit does not have an unprocessed analysis process inherited from the first analysis unit. Run part of the analysis process.
- a test method for testing a plurality of memories under test each provided for each memory under test, for testing the corresponding memory under test.
- a plurality of test signal supply stages for supplying test signals to the memory under test, and data provided for each memory under test and read from the corresponding memory under test according to the test signal are expected values.
- a plurality of failure detection stages for detecting a failure of the memory under test when the memory cell does not match, and a memory cell of the failure in the corresponding memory under test provided for each memory under test.
- test method comprising the steps of:
- a test apparatus for testing a plurality of memories under test.
- a plurality of test signal supply units each provided with a test apparatus corresponding to each memory under test, and supplying a test signal for testing the corresponding memory under test to the memory under test; , Provided for each memory under test, and when the data read out from the corresponding memory under test according to the test signal does not match the expected value, a failure of the memory under test is detected.
- a plurality of first analysis units for finding a repair solution for repairing a defect in the memory under test, and a plurality of first analysis units start analysis of a repair solution for a plurality of memories under test. Accordingly, after the analysis of the rescue solution is completed, a program is provided that functions as the second analysis unit for obtaining the rescue solution by taking over the analysis process of the rescue solution from the first analysis unit.
- an analysis device for a test apparatus that tests a plurality of memories under test.
- the test apparatuses are provided corresponding to the respective memories under test.
- a plurality of test signal supply units for supplying test signals for testing the test memory to the memory under test, and corresponding to each memory under test, are provided according to the test signal from the corresponding memory under test. If the read data does not match the expected value, a plurality of defect detectors for detecting a defect in the memory under test and a corresponding memory under test are provided.
- a plurality of first analysis units for obtaining a repair solution for repairing a defect in the memory under test by replacing a defective storage cell in the memory with a spare cell of the memory under test. In response to the start of the analysis of the repair solution for a plurality of memories under test with different first analysis units, the analysis of the repair solution is completed from the first analysis unit. Take over !, and provide an analysis device for finding the remedy solution.
- a program for an analysis device of a test apparatus for testing a plurality of memories under test wherein the test apparatuses are provided corresponding to the respective memories under test.
- a plurality of test signal supply units for supplying a test signal for testing the corresponding memory under test to the memory under test, and a test signal from the corresponding memory under test. The data read according to the signal is the expected value.
- a plurality of defect detectors for detecting a defect in the memory under test when they do not match, and a corresponding memory cell for the defect in the corresponding memory under test are provided corresponding to each memory under test.
- FIG. 1 shows a configuration of a test apparatus 20 according to the present embodiment.
- FIG. 2 shows the processing timing of each part of the test apparatus 20.
- FIG. 3 shows the processing timing of each unit when the processing of the first analysis unit 28 is continued accordingly because the analysis processing time of the second analysis unit 30 is long.
- FIG. 4 The calculation processing time of each first analysis unit 28 and the analysis processing order of the second analysis unit 30 are shown.
- FIG. 5 shows the configuration of a conventional test apparatus 100.
- FIG. 6 This shows the processing time when the memory under test was tested for each of a plurality of groups using the conventional test apparatus 100.
- FIG. 1 shows a configuration of a test apparatus 20 according to the present embodiment.
- the test apparatus 20 simultaneously tests a plurality of memories under test 10-1 to: LO-n (n is a natural number of 2 or more; hereinafter collectively referred to as the memory under test 10). Then, the test apparatus 20 efficiently calculates a repair solution for replacing the defective memory cell with the spare cell for each memory under test 10 based on the test results.
- the memory under test 10 may be a device unit or a block unit obtained by dividing a storage area in a semiconductor memory chip.
- the test apparatus 20 includes a plurality of test signal supply units 22-1 to 22-n, a plurality of defect detection units 24—l to 24-n, a plurality of fail memories 26-1 to 26-11, First analysis unit 28-1 to 28 -n and a second analysis unit 30.
- test signal supply units 22-1 to 22-n are provided corresponding to the respective memories under test 10, and test the corresponding memories under test 10.
- a test signal for performing is supplied to the memory under test 10.
- a plurality of defect detection units 24-1 to 24-n are provided corresponding to each memory under test 10, and corresponding memory under test.
- defect detection units 24 detect a defective memory cell from among a large number of memory cells included in the memory under test 10.
- the defect detection unit 24 writes information (failure information) specifying the detected defective memory cell in the corresponding fail memories 26-1 to 26-n.
- fail memory 26 A plurality of fail memories 26-1 to 26-n (hereinafter collectively referred to as fail memory 26) are provided corresponding to each memory under test 10 and written by the defect detection unit 24.
- the fail information written in the fail memory 26 is transferred to the corresponding first analysis units 28-1 to 28-n after the test on the corresponding memory under test 10 is completed. For example, when the first analysis units 28-1 to 28-n read data from the fail memory 26, fail information is transferred.
- a plurality of first analysis units 28-1 to 28-n (hereinafter collectively referred to as first analysis unit 28) are provided corresponding to each memory under test 10.
- the first analysis unit 28 transfers the fail information stored in the corresponding file memory 26.
- the first analysis unit 28 refers to the transferred fail information and replaces the defective storage cell in the corresponding memory under test 10 with a spare cell of the corresponding memory under test 10.
- a repair solution for repairing the failure of the memory under test 10 is obtained.
- the second analysis unit 30 finishes the analysis of the repair solution in response to the first analysis units 28 starting the analysis of the repair solution for the next plurality of different memories under test 10.
- the remedy solution is obtained by taking over the remedy solution processing of one or more first analysis units 28.
- Such a test apparatus 20 sets the repair solution obtained by the first analysis unit 28 and the second analysis unit 30 in the memory under test 10 so that the corresponding test solution 20 is stored in the corresponding memory under test 10. Feedback.
- the memory under test 10 replaces the access destination with the spare cell with the defective storage cell power when there is an access such as data writing or reading to the defective storage cell. be able to.
- FIG. 2 shows the processing timing of each part of the test apparatus 20.
- the test signal supply unit 22 and the defect detection unit 24 perform a test for detecting a defective memory cell in units of a plurality of memories under test 10 (for example, a group unit of n memory under test 10). Specifically, the test signal supply unit 22 and the defect detection unit 24 first perform tests on the first plurality of memories under test 10 (for example, the first group) (first period). The failure detection unit 24 performs the test on the first plurality of memories 10 to be tested (for example, the first group), and uses the obtained fail information (for example, the first group of fail information) for each fail memo. It writes sequentially to re26. Subsequently, when the test is completed, the information is transferred to the first analysis unit 28 corresponding to the fail information power of the first group written in the fail memory 26.
- the test signal supply unit 22 and the defect detection unit 24 first perform tests on the first plurality of memories under test 10 (for example, the first group) (first period).
- the failure detection unit 24 performs the test on the first plurality of memories 10 to be tested (for
- test signal supply unit 22 and the defect detection unit 24 test the next memory under test 10 (for example, the second group) (second period). Thereafter, each test signal supply unit 22 and the defect detection unit 24 repeat the transfer and test of the fail information.
- each first analysis unit 28 calculates a repair solution for the corresponding plurality of memories under test 10. For example, when the fail information about the first group of memory under test 10 tested in the first period is transferred from the fail memory 26, the first analysis unit 28 transfers the information about each memory under test 10 of the first group. Analyze the rescue solution (second period).
- the test signal supply unit 22, the defect detection unit 24, and the first analysis unit 28 operate independently of each other, and perform processing on different groups of the memory under test 10 in parallel.
- the first analysis unit 28 performs tests on a plurality of different memories under test 10 (for example, the second group) by a plurality of test signal supply units 22 and a plurality of defect detection units 24.
- the repair solution is analyzed for a plurality of memories under test 10 (for example, the first group tested immediately before the second group) that have already been tested by the test signal supply unit 22 and the defect detection unit 24.
- the first analysis unit 28 that does not end the analysis may occur (for example, See # 2 of the first group of memory under test 10 in the second period;).
- the second analysis unit 30 responds that the test of the plurality of memories under test 10 (for example, the second group) by the plurality of test signal supply units 22 and the plurality of defect detection units 24 is completed.
- the analysis processing of the repair solution is taken over from the first analysis unit 28 that has not finished the analysis of the repair solution.
- the second analysis unit 30 takes over the analysis processing after a predetermined time for the test end timing or the end timing force by the test signal supply unit 22 and the defect detection unit 24.
- the second analysis unit 30 also However, if the plurality of first analysis units 28 have not finished the analysis, a plurality of analysis processes may be taken over (for example, refer to the third period).
- each first analysis unit 28 aborts the analysis process being processed. Then, the first analysis unit 28 responds that the test of the plurality of memories under test 10 (for example, the second group) by the plurality of test signal supply units 22 and the plurality of defect detection units 24 is completed. The analysis of the repair solution for the memory under test 10 (for example, the second group) is started.
- the second analysis unit 30 takes over the analysis process. For this reason, in the test apparatus 20, the first analysis unit 28 performs analysis processing at regular intervals for a large number of memories under test 10 that can easily find a repair solution due to a small number of defective memory cells. However, since the second analysis unit 30 performs an independent analysis process for a small number of memories under test 10 for which a repair solution cannot be easily obtained, the yield of the memory under test 10 can be improved. And the throughput of the system can be improved.
- the test apparatus 20 can reduce the number of the second analysis units 30 that are not required to be provided for the respective memories under test 10 to be smaller than the number of the memories under test 10. Therefore, the second analysis unit 30 can be realized by an information processing device or the like that is more expensive than the first analysis unit 28 but has high calculation capability, and the processing capability of the entire system can be improved.
- the second analysis unit 30 can also be realized by an information processing apparatus connected to the first analysis unit 28 via a network.
- the second analysis unit 30 can also be realized by installing a program in a computer.
- a program installed in a computer is provided by a user via a recording medium or a network.
- a program that is installed in a computer and causes the computer to function as the second analysis unit 30 is configured so that the plurality of first analysis units 28 start the analysis of the repair solution for a plurality of different memories under test 10.
- the first analysis unit 28, which has not completed the analysis, has a module that takes over the repair solution analysis process and obtains a repair solution. This program or module will act on the processor inside the computer, etc. 2 Functions as analysis unit 30.
- the program or module described above may be stored in an external storage medium.
- an optical recording medium such as DVD and CD
- a magneto-optical recording medium such as MO
- a tape medium such as a tape
- a semiconductor memory such as an IC card
- a storage device such as a hard disk or a RAM provided in a server system connected to a dedicated communication network and the Internet may be used as a recording medium, and the program may be provided to the computer via the network.
- each first analysis unit 28 may transmit the data being processed to the second analysis unit 30 as long as each first analysis unit 28 is in the middle of the analysis calculation.
- the second analysis unit 30 may analyze the rescue solution using the intermediate information.
- the test apparatus 20 can reduce the calculation amount of the second analysis unit 30.
- the second analysis unit 30 does not have an unprocessed analysis process inherited from the first analysis unit 28, and in parallel with the plurality of first analysis units 28, at least one A part of the analysis process assigned to the first analysis unit 28 may be executed. That is, the second analysis unit 30 may perform analysis processing together with the first analysis unit 28 when not praying. As a result, the test apparatus 20 can effectively use the computing resources of the second analysis unit 30.
- the second analysis unit 30 receives from the first analysis unit 28 that has not finished the analysis of the repair solution in response to the completion of the test on the plurality of memories under test 10 (for example, the second group).
- the analysis processing taken over is performed during the test period (for example, the third period) for the next plurality of memories under test 10 (for example, the third group).
- the second analysis unit 30 stops the analysis and performs the analysis on the memory under test 10. May be determined as unrepairable.
- the second analysis unit 30 performs the bow I transfer and repair solution at the timing when the test being performed in parallel with the analysis processing is completed (or when the timing force also exceeds a predetermined margin). If the analysis of Stop analysis.
- the test apparatus 20 can stop the analysis and perform processing efficiently.
- FIG. 3 shows the processing timing of each unit when the processing of the first analysis unit 28 is continued accordingly because the analysis processing time of the second analysis unit 30 is long.
- the second analysis unit 30 analyzes the repair solution from the first analysis unit 28 that has not finished the analysis of the repair solution in response to the completion of the test on the plurality of memories under test 10 (for example, the second group). , The analysis processing that was taken over is performed in parallel during the test period (for example, the third period) for the next plurality of memories under test 10 (for example, the third group). In addition, the first analysis unit 28 analyzes a repair solution for a plurality of memories 10 to be tested 10 (for example, the second group) during the period (for example, the third period).
- the plurality of first analysis units 28 have completed the tests of the plurality of memories under test 10 (for example, the third group) and the plurality of memories under test 10 (for example, the second analysis unit 30) (for example, If the analysis of the repair solution for the first loop is not completed, a plurality of memories under test 10 (for example, the second group) are processed until the analysis of the repair solution by the second analysis unit 30 is completed. ) N V, continue the analysis of the rescue solution!
- the first analysis unit 28 also extends the analysis, thereby concentrating the processing on the second analysis unit 30 and increasing the waiting time. Can be effectively tested.
- FIG. 4 shows the calculation processing time of each first analysis unit 28 and the order of the analysis processing of the second analysis unit 30.
- the second analysis unit 30 completes the analysis of the rescue solution at the timing at which the plurality of first analysis units 28 can start the analysis of the rescue solution for a plurality of different memories 10 to be tested.
- the repair solution analysis process may be followed on condition that the number of units 28 is equal to or less than a predetermined threshold value.
- the second analysis unit 30 is, for example, a timing at which analysis processing has not been completed, and the number of first analysis units 28 that have not completed analysis of the repair solution is equal to the test period of the memory under test 10.
- the repair solution analysis process may be taken over, provided that the number is less than the number that the second analysis unit 30 can process.
- the test apparatus 20 can take over at the earliest time within a range not exceeding the processing capability of the second analysis section 30 by determining the takeover timing to the second analysis section 30 in this way, and the entire apparatus The processing speed can be improved.
- the second analysis unit 30 when the second analysis unit 30 takes over the analysis processing of the repair solution for two or more memories 10 under test from the plurality of first analysis units 28, the second analysis unit 30 reduces the memory cells under test 10 with fewer defective memory cells. Execute the analysis process prior to the analysis process with more defective memory cells in the memory under test 10! /.
- the test apparatus 20 can calculate a repair solution from the memory under test 10 that is likely to be easier to calculate. Therefore, it is possible to reduce the memory under test 10 that determines that the repair is impossible.
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- For Increasing The Reliability Of Semiconductor Memories (AREA)
- Tests Of Electronic Circuits (AREA)
Abstract
Description
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Priority Applications (2)
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DE112006002519T DE112006002519T5 (de) | 2005-09-15 | 2006-08-24 | Prüfvorrichtung, Prüfverfahren, Analysevorrichtung und -programm |
US12/047,329 US7689880B2 (en) | 2005-09-15 | 2008-03-13 | Test apparatus, test method, analyzing apparatus and computer readable medium |
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JP2005-268728 | 2005-09-15 | ||
JP2005268728A JP4439009B2 (ja) | 2005-09-15 | 2005-09-15 | 試験装置、試験方法、解析装置及びプログラム |
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US12/047,329 Continuation US7689880B2 (en) | 2005-09-15 | 2008-03-13 | Test apparatus, test method, analyzing apparatus and computer readable medium |
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WO2007032194A1 true WO2007032194A1 (ja) | 2007-03-22 |
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US (1) | US7689880B2 (ja) |
JP (1) | JP4439009B2 (ja) |
KR (1) | KR100939198B1 (ja) |
DE (1) | DE112006002519T5 (ja) |
WO (1) | WO2007032194A1 (ja) |
Cited By (1)
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CN102564558A (zh) * | 2012-01-19 | 2012-07-11 | 徐工集团工程机械股份有限公司科技分公司 | 沥青拌和站及其多点电子秤故障检测装置和检测方法 |
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JP4889357B2 (ja) | 2006-04-14 | 2012-03-07 | 株式会社アドバンテスト | 試験装置、プログラムおよび試験方法 |
US9484116B1 (en) | 2015-08-17 | 2016-11-01 | Advantest Corporation | Test system |
KR102405054B1 (ko) * | 2015-11-27 | 2022-06-08 | 에스케이하이닉스 주식회사 | 메모리 장치 및 메모리 장치의 동작 방법 |
TWI661297B (zh) * | 2017-11-30 | 2019-06-01 | 財團法人資訊工業策進會 | 監控系統及監控方法 |
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JP2000091388A (ja) * | 1998-09-08 | 2000-03-31 | Hitachi Electronics Eng Co Ltd | Ic試験装置の救済判定方式 |
WO2002033708A1 (fr) * | 2000-10-19 | 2002-04-25 | Advantest Corporation | Procede de traitement -par analyse- de la reparation de defauts de memoire et appareil d'essai de memoire mettant en oeuvre ce procede |
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US6640321B1 (en) * | 2000-04-14 | 2003-10-28 | Lsi Logic Corporation | Built-in self-repair of semiconductor memory with redundant row testing using background pattern |
KR100374636B1 (ko) * | 2000-10-18 | 2003-03-04 | 삼성전자주식회사 | 결함 테스트 및 분석 회로를 구비하는 반도체 장치 및 결함 분석 방법 |
US6691264B2 (en) * | 2001-01-22 | 2004-02-10 | Lsi Logic Corporation | Built-in self-repair wrapper methodology, design flow and design architecture |
JP4309086B2 (ja) * | 2001-12-20 | 2009-08-05 | 株式会社ルネサステクノロジ | 半導体集積回路装置 |
JP3866588B2 (ja) * | 2002-03-01 | 2007-01-10 | エルピーダメモリ株式会社 | 半導体集積回路装置 |
KR100464936B1 (ko) * | 2003-04-30 | 2005-01-06 | 주식회사 하이닉스반도체 | 리페어회로의 동작 마진을 향상시킬 수 있는 반도체메모리 장치 |
JP2005268728A (ja) | 2004-03-22 | 2005-09-29 | Sony Corp | 半導体レーザ装置の製造方法 |
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2005
- 2005-09-15 JP JP2005268728A patent/JP4439009B2/ja not_active Expired - Fee Related
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2006
- 2006-08-24 WO PCT/JP2006/316638 patent/WO2007032194A1/ja active Application Filing
- 2006-08-24 KR KR1020087007177A patent/KR100939198B1/ko active IP Right Grant
- 2006-08-24 DE DE112006002519T patent/DE112006002519T5/de not_active Withdrawn
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2008
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JP2000091388A (ja) * | 1998-09-08 | 2000-03-31 | Hitachi Electronics Eng Co Ltd | Ic試験装置の救済判定方式 |
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JP4439009B2 (ja) | 2010-03-24 |
DE112006002519T5 (de) | 2008-07-24 |
US20090070624A1 (en) | 2009-03-12 |
JP2007080422A (ja) | 2007-03-29 |
KR20080045241A (ko) | 2008-05-22 |
KR100939198B1 (ko) | 2010-01-28 |
US7689880B2 (en) | 2010-03-30 |
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