提高电子产品的可靠性是许多生产厂家非常关心的问题。在电子产品的故障中．有相当一部分是由于运输过程及使用环境中的振动造成的，如一些电路的连接部分（引线、引脚、插件等）松动、断线。这一类断线、接触不良的故障与电路的元器件故障相比较属于“小故障”、“小问题”。 To improve the reliability of electronic products is a lot of manufacturers are very concerned about the issue. In the breakdown of electronic products. A considerable part is due to the transport process and the use of the environment caused by vibration, such as connecting some of the circuit (lead, pin, plug, etc.) loose, broken. This type of disconnection, poor contact with the failure of the circuit components are compared to the “glitch”, “a small problem.”