发明名称 |
A TAMPER DETECTION ARRANGEMENT |
摘要 |
A tamper detection arrangement for use within an integrated circuit (1), the arrangement comprising: at least one input capacitor (4) having a first capacitance value; a feedback capacitor (5) having a second capacitance value; a sensing arrangement comprising an amplifier circuit having the at least one input capacitor as an input and the at least one feedback capacitor in a feedback loop across the amplifier operable to detect a change in the capacitance values between the at least one input capacitor and the feedback capacitor; and a protective shield to protect a sensitive area (2) of the integrated circuit from tampering, the shield being provided by the at least one input capacitor (4). |
申请公布号 |
EP2766929(A1) |
申请公布日期 |
2014.08.20 |
申请号 |
EP20120850746 |
申请日期 |
2012.10.29 |
申请人 |
QATAR FOUNDATION;ALTIS SEMICONDUCTOR |
发明人 |
FILIPPI, RAYMOND;CIORANESCO, JEAN-MICHEL |
分类号 |
H01L23/58 |
主分类号 |
H01L23/58 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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