The harm caused by ESD to computer motherboard
ESD can cause various damage to precision semiconductor chips, such as penetrating the thin insulating layer inside the component; damaging the gates of MOSFETs and CMOS components; latching in CMOS devices; causing reverse bias and forward bias The PN junction is shorted; the solder wire or aluminum wire inside the active device is melted.
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.
Safe from the ESD motherboard
The effective ESD protection measures are added to the design of the main board to prevent the occurrence of the above-mentioned various damages to the greatest extent, thereby improving the quality of the main board and prolonging the working life. Usually, motherboard components can be divided into three states after being subjected to ESD: health, death, injury, health, and the 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 has premature effect during use.