HACKING DETECTOR OF SEMICONDUCTOR INTEGRATED CIRCUIT AND DETECTING METHOD THEREOF

摘要

A hacking detector of a semiconductor integrated circuit is provided to detect where a semiconductor is hacked or not by using parasitic capacitance while reducing the size of a detection capacitor. A hacking detector of a semiconductor integrated circuit includes a precharge capacitor(C1) connected to a precharged check node(CHK) and a detection capacitor(C3) for discharging the check node(C3), and also includes a detector(100) detects whether the detection capacitor was exposed to outside or not according to the voltage level of the check node when a certain time passes. The capacitance of the detection capacitor is larger than that of a precharged capacitor.