ESD分析（ESD analysis）.docVIP

ESD分析（ESD analysis） ESD design rules The design rules of antistatic release must be followed in the design of electronic products, which can help prevent and solve electrostatic release The dangers of release. Many product design engineers usually consider antistatic release when they enter production Lets put the ESD problem. If electronic devices cant be tested by antistatic release, they can find it by experience The original design solution. However, the final solution usually involves using expensive components and manufacturing processes With manual assembly, and even redesign, the progress of the product is bound to be affected. Even experienced engineers and design engineers may not know which parts of the design are beneficial Resistance to ESD. Most electronic devices are in an ESD environment for 99% of their lives. ESD may come from the human body, furniture, even the inside of the device itself. It is rare for electronic devices to be completely destroyed by ESD, However, ESD interference is very common, which can lead to device lock, reset, data loss and unreliable. The result might be It is: in the cold dry winter electronic equipment often appears the malfunction phenomenon, but the repair time again shows normal, such bound Affect the users confidence in electronic devices and their manufacturers. Mechanism of ESD generation To prevent ESD, you must first know what the ESD is and the process of ESD entering the electronic device. A charge ESD is possible when an electric conductor is close to another conductor. First of all, the two conductors will build a very large one Strong electric fields produce breakdown by electric fields. The voltage between the two conductors exceeds the air and the insulating medium between them When a breakdown voltage is applied, an arc is generated. In the time between 0.7 and 10 ns, the arc current can reach dozens of amperes, Sometimes more than 100 amps. The arc will remain in place until the two conductors are expo