Studies of PCB failures indicated that static damage to chips and PCBs were being caused by field service engineers who were often unaware of the need to employ precautionary procedures in handling ESD sensitive parts.
对PCB故障的研究表明，芯片和PCB的静态损坏是由现场服务工程师引起的，他们常常不知道在处理ESD敏感部件时需要采取预防措施。