Electrostatic Discharge (ESD) Protection in the Electronics Industry
The development of electronic product technology has led to increasingly serious ESD problems due to the widespread use of polymer materials. Furthermore, the miniaturization of electronic components has exacerbated the dangers of ESD. Currently, microcircuit manufacturing abroad commonly employs 0.8–1.0 μm technology, and domestically, it has reached 2–3 μm levels. This microfabrication technology and the fine structure of products make them increasingly sensitive to ESD, to a level that cannot be ignored.
ESD protection for electronic products has the following distinct characteristics:
1. The ultra-fine and ultra-thin manufacturing processes and the fine structure of products make them significantly more sensitive to ESD than other industries and products. Even ESD voltages below 20V can damage or destroy electronic components.
2. Products sensitive to ESD, such as discrete semiconductor devices, integrated circuits, thick and thin film circuits, resistors, capacitors, and piezoelectric crystals, especially the first three types, are considered the "heart" of electronic equipment. Therefore, the issue of electrostatic discharge (ESD) protection involves almost every technical field of electronic products, especially those electronic devices that require small size, high operating frequency, and high installation density.
3. ESD protection is a systematic project, involving all stages of sensitive electronic products' manufacturing, assembly, handling, inspection, testing, repair, packaging, transportation, storage, and use. It operates in a series, and a failure in any stage will lead to the failure of the entire protection effort. Simultaneously, it is directly related to the environment in which the sensitive product is located (the objects it comes into contact with, the air atmosphere, humidity, anti-static flooring, anti-static workbenches, anti-static chairs, processing equipment, anti-static tools, etc.) and the clothing of the operators (including anti-static clothing, anti-static hats, shoe polish, anti-static gloves, wrist straps, etc.). Any oversight or error in any aspect will result in the failure of ESD protection.
Given the characteristics of ESD protection for electronic products mentioned above, it would be best to develop a series of standards adapted to these needs. A better option is to adopt a comprehensive standardization approach, starting from the system requirements of electrostatic protection and comprehensively considering the formulation and coordination of relevant standards. Only in this way can all aspects of anti-static work be incorporated into the standard and become an orderly process.