What is the effect of static electricity on electronic components?
Electronic components in the actual use, always produce a certain amount of static electricity, which led to a series of problems. Therefore, how to effectively prevent the generation of electronic components static electricity has become one of the hot spots in the field of electronic information industry. In this paper, the principle of static electricity is analyzed, and the harm of static electricity to electronic components is discussed. Finally, the protection measures of electrostatic protection of electronic components are put forward....
The basic physical characteristics of static electricity are: attractive or repulsive, with the earth has a potential difference (voltage is very high), will produce discharge current. These three characteristics can affect the electronic device: 1. Electrostatic adsorption of dust, reducing the insulation resistance of components (shorten the life). 2. Electrostatic discharge damage, so that component damage can not work (completely destroyed). 3. Electrostatic discharge Electric field or current generated by heat, so that components damage (potential damage). 4. Electrostatic discharge produces a large amplitude (up to several hundred volts / meter) Spectrum Extremely wide (from tens of megabytes to several gigabytes), causing interference or damage to electronic products (electromagnetic interference) If all components are damaged, If the components are slightly damaged (hidden), in the normal test case is not easy to find, in this case, the case is not easy to find, Often due to multi-layer processing, or even in use, only to find damage, not only check is not easy, and its losses are difficult to predict. Such as microprocessors suffer from electrostatic implicit damage, in the operation will deal with abnormal and crash and other phenomena.
According to the electronic components of the manufacturing environment, static electricity will have the following effects: 1, electrostatic adsorption of dust, change the impedance between the lines, affecting the function of the product and Shougong Gongzie folder locusts to fight the storm. 2, due to electric field or current damage components of the insulation or conductor, so that components can not work. 3, due to the instantaneous electric field or current generated by the heat, component injury, still work, life damage. Good anti-static series of products to effectively protect the components, to avoid static damage to the components.
Electronic components in the actual use, always produce a certain amount of static electricity, which led to a series of problems. Therefore, how to effectively prevent the generation of electronic components static electricity has become one of the hot spots in the field of electronic information industry. In this paper, the principle of static electricity is analyzed, and the harm of static electricity to electronic components is discussed. Finally, the protection measures of electrostatic protection of electronic components are put forward.
