发明名称 |
HALBLEITERBAUELEMENT, KARTE, VERFAHREN ZUR INITIALISIERUNG UND ZUR PRÜFUNG IHRER AUTHENTIZITÄT UND IHRER IDENTITÄT |
摘要 |
The semiconductor device ( 11 ) of the invention comprises a circuit that is covered by a passivation structure. It is provided with a first security element ( 12 ) that comprises a local area of the passivation structure and which has a first impedance. Preferably, a plurality of security elements ( 12 ) is present, whose the impedances differ. The semiconductor device ( 11 ) further comprises measuring means ( 4 ) for measuring an actual value of the first impedance, and a memory (7) comprising a first memory element ( 7 A) for storing the actual value as a first reference value in the first memory element ( 7 A). The semiconductor device ( 11 ) of the invention can be initialized by a method wherein the actual value is stored as the first reference value. Its authenticity can be checked by comparison of the actual value again measured and the first reference value. |
申请公布号 |
AT384304(T) |
申请公布日期 |
2008.02.15 |
申请号 |
AT20020803892T |
申请日期 |
2002.11.28 |
申请人 |
NXP B.V. |
发明人 |
DE JONGH, PETRA;ROKS, EDWIN;WOLTERS, ROBERTUS;PEEK, HERMANUS |
分类号 |
G06K7/08;G06K19/10;G06K19/073;H01L21/3205;H01L21/822;H01L23/52;H01L23/58;H01L23/64;H01L27/04 |
主分类号 |
G06K7/08 |
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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