浅谈电子制造过程中的静电及静电防护

浅谈电子制造过程中的静电及静电防护
鲜飞
(烽火通信科技股份有限公司,湖北 武汉 430074)
摘要：静电放电（ESD）就是一定数量的电荷从一个物体（例如人体）传送到另外一个物体（例如芯片）的过程。这个过程能导致在极短的时间内有一个非常高的电流通过芯片，35%以上的芯片损坏都可以归咎于此。因此，在电子制造行业里保护芯片免受静电放电的损害是非常重要的。实际上，很多公司在各种不同电子应用中都遇到了如何应对急速增长的静电防护需求的问题。针对ESD 机制和防护作了一个较全面的介绍，包括ESD 原理、电流产生、危害、防静电工艺要求等。
关键词：静电释放；危害；防护
The Summarizing for ESD and ESD Protection
in Electronics Assembly Industry
Xian Fei
(Fiberhome Telecommunication Technologies Co., Ltd, Wuhan 430074,China)
Abstract：Electrostatic discharge (ESD) is a process in which a finite amount of charge is transferred from one object (i.e., human body) to the other (i.e., microchip). This process can result in a very high current passing through the microchip within a very short period of time, and more than 35% of chip damages can be attributed to such an event. As such, it is very important to protect microchips against ESD stress in electronics assembly industry. In fact, many companies worldwide are having difficulties in meeting the increasingly stringent ESD protection requirements for various electronics applications.
This paper gives a comprehensive coverage on various issues pertinent to ESD mechanism and protection, including ESD fundamentals, charge generation, damaging mechanisms, ESD protection schemes.
Key words: Electrostatic discharge; Damage; Protection