ESD rubber mat or conductive ground mats should be laid out in the workshops and advanced laboratories for microelectronic industries such as electronic semi-conduct devices,electronic computers,electronic communication equipment and integrated circuits etc. To eliminate damages caused by static electricity.When ESD rubber mat (ground mats) are laid out and grounded,the working surface will discharge the static electricity of human bodies so that a near-equipotential can be maintained for ESEDS tweezers,tools,utensils and instruments, through which human bodies contact the working table and static sensitive devices(SSD) are free from broadband interference produced by static discharging such as triboelectrification etc. In this way, electrostatic protection is realized.