公开(公告)号：US06496119B1

公开(公告)日：2002-12-17

申请号：US09582841

申请日：2000-09-20

申请人： Jan Otterstedt ,  Michael Richter ,  Michael Smola ,  Martin Eisele

发明人： Jan Otterstedt ,  Michael Richter ,  Michael Smola ,  Martin Eisele

IPC分类号： G08B2100

CPC分类号： G06K19/073 ,  G01R31/31719 ,  G06F21/71 ,  G06F21/74 ,  G06F21/87 ,  G06F2221/2105 ,  G06F2221/2143 ,  G06K19/07372 ,  H01L23/576 ,  H01L2924/0002 ,  H01L2924/00

摘要： The invention is directed to a protective circuit for an integrated circuit 1. This protective circuit is preferably arranged in a plurality of circuit levels 2, 3 under and/or above the intergrated circuit 1. It exhibits a plurality of interconnects 10, 11 that are charged with different signals of one or more signal generators. The different signals, after traversing the interconnects 10, 11, are analyzed with one or more detectors in that the signals received by detectors are respectively compared to rated reference signals, and an alarm signal is forwarded to the integrated circuit given the presence of a significant difference. On the basis of this alarm signal, the integrated circuit is switched into a security mode that makes an analysis or a manipulation of the integrated circuit practically impossible.

摘要翻译： 本发明涉及用于集成电路1的保护电路。该保护电路优选地布置在集成电路1下面和/或上方的多个电路级2,3中。它呈现多个互连10,11 充电一个或多个信号发生器的不同信号。 通过一个或多个检测器分析遍历互连10,11之后的不同信号，因为由检测器接收的信号分别与额定参考信号进行比较，并且在存在显着的信号的情况下将报警信号转发到集成电路 区别。 基于该报警信号，集成电路切换成能够实现集成电路的分析或操作的安全模式。