发明授权
- 专利标题: Non-invasive, low pin count test circuits and methods
- 专利标题(中): 非侵入性,低引脚数测试电路和方法
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申请号: US10027187申请日: 2001-12-20
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公开(公告)号: US06937046B1公开(公告)日: 2005-08-30
- 发明人: Murari Kejariwal , Prasad Ammisetti , Axel Thomsen , John Laurence Melanson
- 申请人: Murari Kejariwal , Prasad Ammisetti , Axel Thomsen , John Laurence Melanson
- 申请人地址: US TX Austin
- 专利权人: Cirrus Logic, Inc.
- 当前专利权人: Cirrus Logic, Inc.
- 当前专利权人地址: US TX Austin
- 代理机构: Thompson & Knight LLP
- 代理商 James J. Murphy
- 主分类号: G01R31/28
- IPC分类号: G01R31/28 ; G01R31/02
摘要:
A method of testing an integrated circuit including the steps of observing a selected parameter at a selected test mode to detect an error. The current to the integrated circuit is stepped from a reference level by selected amount.