Technology Analysis and Case Study of Electrostatic Discharge Protection for Electronic Devices
The development of science and technology and integrated circuit technology has continuously enhanced the performance and integration of electronic devices,while it also made them more sensitive,so the hazards caused by electro-static discharge have been increasing,which seriously affected the reliability and safety of the equipment.Firstly,we elabo-rated the causes of electrostatic discharge,and characteristics such as short time and wide spectrum,and provided a brief a-nalysis of relevant domestic standards,requirements,parameters,interference principles,and approaches for electrostatic discharge.Then,the static discharge values in daily life,commonly used protection methods,and protection principles were introduced.Finally,based on the fault phenomenon that occurred in the electrostatic discharge test of a certain camera prod-uct,combined with past experience,fault location and analysis were carried out.Specific rectification measures were pro-posed from the aspects of parallel protection device TVS,replacement of flexible cables with shielding performance,effec-tive overlap through screw holes to reduce loop impedance and so on.The effectiveness of the measures was verified through experiments.The conclusion and relevant suggestions that led to the malfunction were provided in the end,which provided the reference for relevant designers.
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