How to prevent ESD from causing damage to the motherboard

ESD is the release of static electricity, which can cause various damage to precision semiconductor chips, such as penetrating the thin insulating layer inside the component, and damaging MOSFET and the gate of CMOS element; The trigger is locked in the CMOS device, causing a short circuit of the PN junction of the reverse offset and forward offset, and melting the welding wire or the aluminum wire inside the active device.

In the computer industry, ESD is a frequent occurrence of invisible killers, mainly manifested in:

Lightning or other electrostatic discharge caused network card damage 2 chip group burned, as early as a few years a motherboard manufacturers due to the USB interface of the ESD problem caused a large number of South Bridge burned 3IO interface problems caused by the motherboard components damaged, such as the transistor burned 4 system error, restart, hard disk data loss, etc. in the motherboard design to add effective ESD protection measures , to the greatest extent possible to prevent the occurrence of these damage, so as to improve the quality of the motherboard, lengthened working life. Usually the motherboard components in the exposure to ESD can be popular into three states: health, death, injury. Healthy, the component has the proper ESD protection treatment, can run normally for several years. Dead, the component has no ESD protection and suffers from severe ESD damage and is not functioning properly. Injured, the component suffers from partial damage and contains potential defects. Although not easy to detect in a short time, but in the use of the process of premature effect. There are two ways the computer suffers from ESD:

1, human contact caused (such as: the user in the operation of the boot, reset, Plug and unplug USB devices)

2., lightning (such as: through the network card) Top star technology adhering to the "let our customers always happy" for the purpose, in the design of the motherboard to add a lot of protection of ESD design, so that users in the process of using the computer, defense of the ESD interference. Of course, we have to use the computer to operate properly, so that ESD has nowhere to hide.

Here's what you should be aware of when you use your computer:

First, the computer chassis needs reliable grounding;

Second, the northern region in the autumn and winter season should use humidifier, to maintain a certain humidity indoor air, to prevent static electricity in equipment, furniture and physical accumulation;

Third, in the transport and storage process to the computer machine or components in the electrostatic shielding bag or conductive carrying box for transport to prevent the integrated circuit chip is electrostatic breakdown.

Iv. in the use or maintenance of the process to touch any circuit in the computer, the standard practice is to wear anti-static wrist sleeve. For the vast number of ordinary users, you can first touch the computer chassis metal casing to release the body of static electricity (the premise is that the circuit has indeed been grounded, or not to release the role of static electricity). If you cannot confirm whether the circuit is grounded, you can also use the method of touching the pipe to release static electricity.

V. Usually plug in USB or IEEE1394 equipment, should be in accordance with the 4th proposed method to release the physical static, reduce the static and damage equipment and accessories of the chance.