Summary of anti-static in electronic manufacturing industry
In the electronic manufacturing process, electrostatic discharge often damages electronic components, and even disables their functions, causing losses caused by mistakes. Therefore, electrostatic protection in the electronic manufacturing industry is very important. The main thing is to understand, Analyze the source of static electricity and the principle of static protection in the electronic product manufacturing industry, and summarize some of the foundations of static protection technology and corresponding measures in production.
Static electricity is an invisible and intangible electrical energy that remains on the surface of an object. It is the result of the loss of balance between positive and negative charges in a local area. It is formed through the conversion of electrons or ions. The phenomenon of static electricity is the process of charge generation and disappearance. The general term for the electrical phenomena generated in. For example: frictional electrification, human walking electrification and other phenomena.
The electrostatic voltage generated in the manufacturing of electronic products, transportation, storage, etc. far exceeds the breakdown voltage of MOS devices, which often causes hard breakdown (partial damage to components), making it invalid or seriously affecting the product Reliability.
In order to control and eliminate ESD, some developed countries have formulated national, military, and corporate standards or regulations. There are corresponding regulations for the design, manufacture, purchase, warehousing, inspection, storage, assembly, debugging, packaging and transportation of semi-finished and finished products, etc. of electrostatic sensitive components. There are also special regulations on the manufacturing, use and management of electrostatic protection equipment. Strict regulatory requirements,
Devices that are sensitive to electrostatic reactions are called electrostatic sensitive components (SSD). Electrostatic sensitive components mainly refer to very large-scale integrated circuits, especially metallized film semiconductors (MOS circuits). For different SSD devices, different electrostatic protection measures are adopted.