发明授权
US08689066B2 Integrated circuit test optimization using adaptive test pattern sampling algorithm
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使用自适应测试模式采样算法的集成电路测试优化
- 专利标题: Integrated circuit test optimization using adaptive test pattern sampling algorithm
- 专利标题(中): 使用自适应测试模式采样算法的集成电路测试优化
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申请号: US13172179申请日: 2011-06-29
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公开(公告)号: US08689066B2公开(公告)日: 2014-04-01
- 发明人: Matthew S. Grady , Mark C. Johnson , Bradley D. Pepper , Dean G. Percy , Joseph C. Pranys
- 申请人: Matthew S. Grady , Mark C. Johnson , Bradley D. Pepper , Dean G. Percy , Joseph C. Pranys
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理机构: Cantor Colburn LLP
- 代理商 Michael LeStrange
- 主分类号: G01R31/28
- IPC分类号: G01R31/28
摘要:
A method of implementing integrated circuit device testing includes performing baseline testing of a first group of chips using a full set of test patterns, and for chip identified as failing, determining, a score for each test pattern in the full set. The score is indicative of an ability of the test pattern to uniquely identify a failing chip with respect to other test patterns. Following the baseline testing, streamlined testing on a second group of chips is performed, using a reduced set of the test patterns having highest average scores as determined by the baseline testing. Following the streamlined testing, full testing on a third group of chips is performed using the full set of test patterns, and updating the average score for each pattern. Further testing alternates between the streamlined testing and the full testing for additional groups of chips.
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