How to avoid damage to the motherboard caused by static electricity
ESD is an electrostatic discharge that causes various damage to precision semiconductor chips, such as penetrating a thin insulating layer inside the component; damaging the gates of MOSFETs and CMOS components; latching in CMOS devices; causing reverse bias Short-circuit with the forward-biased PN junction; melt the weld line or aluminum wire inside the active device.
In the computer industry, ESD is a frequent invisible killer, mainly in:
1 Lightning strike or other electrostatic discharge causes damage to the network card
2 The chipset burned down. For example, in the early years, a large motherboard manufacturer caused a large number of south bridges to burn out due to the ESD problem of the USB interface.
3 IO interface problems cause component damage on the motherboard, such as triode burnout
4 system error, restart, hard disk data loss, etc. In the design of the motherboard, add effective ESD protection measures to prevent the occurrence of the above damages to the greatest extent, thereby improving the quality of the motherboard and prolonging the working life. Usually motherboard components can be divided into three states after being subjected to ESD: health, death, and injury. Healthy, this component has proper ESD protection and can operate for several years. In case of death, the component is not protected by ESD and suffers from severe ESD damage and cannot function properly. Injured, the component is partially damaged and contains potential defects. Although it is not easy to detect in a short time, it is too early to be effective during use.
There are two ways for a computer to suffer from ESD:
1. Caused by human contact (such as: when the user is operating, resetting, plugging and unplugging USB, etc.)
2. Lightning Strike (such as: through the network card) Topstar Technology adheres to the principle of “Let our customers be happy forever”. In the design of the motherboard, many ESD designs have been added to protect the ESD during the process of using the computer. Interference. Of course, we have to use the computer properly, so that ESD has nowhere to hide.
The following top stars teach you what to watch when you use your computer:
First, the computer case needs to be reliably grounded;
Second, in the northern region, humidifiers should be used in the autumn and winter seasons to maintain a certain humidity in the indoor air to prevent static electricity from accumulating in equipment, furniture and the body;
Third, in the process of transportation and storage, the whole computer or parts should be placed in an electrostatic shielding bag or a conductive tote to prevent the integrated circuit chip from being electrostatically broken down.
Fourth, when using any circuit in the computer during use or maintenance, the standard practice is to wear an anti-static wristband. For the majority of ordinary users, you can first touch the metal case of the computer case to release the static electricity on the body (provided that the circuit is indeed grounded, otherwise it will not release static electricity). If it is not possible to confirm that the circuit is grounded, you can also discharge static electricity by touching the water pipe.
Fifth, when plugging and unplugging USB or IEEE1394 devices, the static electricity on the body should be released in advance according to the method proposed in point 4 to reduce the chance of damage to the devices and accessories due to static electricity.
At the same time, Topstar's motherboard has ESD protection on all parts that are susceptible to ESD interference. As long as the user is working properly in the process, I believe that ESD will not appear and interfere with the normal use of the computer.