发明授权
- 专利标题: Fuse sensing scheme
- 专利标题(中): 保险丝感测方案
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申请号: US11770956申请日: 2007-06-29
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公开(公告)号: US07986024B2公开(公告)日: 2011-07-26
- 发明人: Thomas Nirschl
- 申请人: Thomas Nirschl
- 申请人地址: DE Neubiberg
- 专利权人: Infineon Technologies AG
- 当前专利权人: Infineon Technologies AG
- 当前专利权人地址: DE Neubiberg
- 代理机构: Eschweiler & Associates, LLC
- 主分类号: H01H85/30
- IPC分类号: H01H85/30
摘要:
A fuse circuit includes a fuse configured for programming a configuration of an integrated circuit device and a resistive element having a known resistance value operably coupled in parallel with the fuse. The fuse and the resistive element form a parallel circuit configured for quickly sensing a state of the fuse in relation to the known value of the resistive element. In one embodiment, the device may further include a sense circuit operably coupled to the parallel circuit combination of the fuse and the resistive element. The sense circuit is configured to sense one of a FUSED state and an UNFUSED state of the fuse, for example, based on a comparison between a reference resistance and a FUSED resistance of the fuse when coupled to the known resistance. The fuse may comprise a programmable fuse, and the resistive element may comprise a MOS transistor.
公开/授权文献
- US20090002119A1 FUSE SENSING SCHEME 公开/授权日:2009-01-01
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