发明授权
- 专利标题: Anti-fuse circuit and method of operation
- 专利标题(中): 防熔丝电路及操作方法
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申请号: US10017429申请日: 2001-12-14
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公开(公告)号: US06597234B2公开(公告)日: 2003-07-22
- 发明人: Douglas M. Reber , Stephen R. Crown
- 申请人: Douglas M. Reber , Stephen R. Crown
- 主分类号: H01H3776
- IPC分类号: H01H3776
摘要:
An anti-fuse useful in implementing redundancy in a memory utilizes a normal transistor characteristic that is generally considered undesirable in order to provide two easily detected states. The un-programmed state, which is the high impedance state, is achieved simply with a normal transistor in its non-conductive state. The programmed state, which is the low impedance state, is achieved by forcing a normal transistor to conduct current through its gate. This causes the gate dielectric to become permanently conductive. This programmed transistor then is conductive between its source and drain that is easily differentiated from the transistor that is held in its non-conductive state. The result is a fuse technology using an anti-fuse that provides for easily distinguishable programmed and un-programmed states achieved by electrical programming rather than by laser programming.
公开/授权文献
- US20030112055A1 ANTI-FUSE CIRCUIT AND METHOD OF OPERATION 公开/授权日:2003-06-19
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