Abstract
The ESD robustness of the electric device becomes weak year by year because of the high frequency operation. For that reason, the development of a countermeasure technology is necessary. Especially, the countermeasure technology in the system level is important for the next generation electric devices. In this paper, the discharge current and the radiated electromagnetic wave caused by ESD from ESD countermeasure materials which are conductive composite resin with a carbon fiber, a carbon nano fiber and a carbon nano tube were investigated.