A prolonged discharge time ESD power-rail clamp circuit structure with strong ability to prevent false triggering

摘要

A new reliable Electrostatic Discharge (ESD) power-rail clamp circuit has been proposed in this paper. The new circuit structure has achieved good results in reducing leakage current, anti-false triggering, increasing discharge transistor's turn on time. During the ESD event, the proposed circuit has a discharge time of 755.22ns, which is about 6.74 times that of conventional R-C power-rail clamp circuit. Besides, the leakage current of whole circuit eventually stabilizes at a lower level of 46.50nA.