发明授权
- 专利标题: Testability architecture and techniques for programmable interconnect architecture
- 专利标题(中): 可测试架构和可编程互连架构技术
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申请号: US958879申请日: 1992-10-07
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公开(公告)号: US5341092A公开(公告)日: 1994-08-23
- 发明人: Khaled A. El-Ayat , Jia-Hwang Chang
- 申请人: Khaled A. El-Ayat , Jia-Hwang Chang
- 申请人地址: CA Sunnyvale
- 专利权人: Actel Corporation
- 当前专利权人: Actel Corporation
- 当前专利权人地址: CA Sunnyvale
- 主分类号: G01R31/28
- IPC分类号: G01R31/28 ; G01R31/3185 ; H03K19/177 ; G01R31/02
摘要:
In an integrated circuit including a first conductor disposed in a first direction, a plurality of second conductors forming intersections with the first conductor, and a plurality of antifuses connected between the first conductor and the second conductors at the intersections, a method for testing the integrity of the plurality of antifuses after attempting to program a selected one of the antifuses, including the steps of precharging each of the second conductors to a first preselected voltage potential such that a selected dynamic voltage is placed on each of the second conductors; placing a second voltage potential on the first conductor, wherein the difference between the first voltage potential and the second voltage potential is less than the voltage necessary to cause degradation of a good antifuse; waiting a preselected time; and sensing the voltage potential on each of the second conductors.
公开/授权文献
- US4180204A Automatic inventorying system 公开/授权日:1979-12-25
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