SELF-DESTRUCTION SEMICONDUCTOR DEVICE

摘要

PROBLEM TO BE SOLVED: To surely prevent the alteration act of a semiconductor integrated circuit to a memory content. SOLUTION: A capacitor 3, for destruction, in which an electric charge for self-destruction by a destruction circuit 2 is installed integrally with an integrated circuit 1. Normally, the electric charge is stored in the capacitor 3, for destruction, via a connecting terminal 10 from a power-supply source 6 which is separate from it. Then, when the power-supply source 6 is removed in order to alter the memory content of the integrated circuit 1, a control circuit or a control element 4 is operated so as to be changed over according to a voltage across its connecting terminals, and the electric charge of the capacitor 3 for destruction is supplied to the destruction circuit 2 so as to be self-destroyed.