Views: 0 Author: Site Editor Publish Time: 2025-04-22 Origin: Site
Good electrostatic protection usually requires the following three basic principles:
Reduce or prevent the chance of electrostatic charge build-up.
Build safe pathways for electrostatic discharge.
Introduce the necessary and effective electrostatic monitoring equipment for systematic electrostatic monitoring.
Reduce or prevent the chance of static charge accumulation and build a safe electrostatic discharge pathway based on the need to build a good electrostatic grounding system, electrostatic grounding refers to the electrostatically charged objects or objects with the potential to generate static electricity (non-insulator) through the conductor and the earth to form an electrical circuit, so that it is at the same potential level with the earth. Its purpose is to accelerate the flow of static electricity and leakage, so that the electrostatic charge of the charged material to be effective and smooth release, in order to avoid the accumulation of static electricity.
The generation and size of static electricity are closely related to the humidity of the environment and the concentration of ions in the air. Static potential and humidity is inversely proportional to the same time with the ordinary occasions, compared with the more pure air places (such as clean room), due to the low concentration of ions in the air, so the static electricity is more likely to produce.
The same action at different humidity levels in the Cleanroom can produce static voltages that can vary by more than an order of magnitude. However, it is worth noting that it is not the higher the humidity the better, high humidity will lead to equipment prone to dew, so humidity should be controlled in a reasonable range, such as 30% to 75%.
High humidity can reduce the generation of static electricity to the point where the human body can not touch and sense it, but it is still enough to destroy sensitive components. The correct concept is that high humidity can inhibit the amount of static electricity, and low humidity is vice versa, so for some product assembly on the strict requirements of static electricity control, in addition to taking the traditional electrostatic protection measures, but also on the ISO Cleanroom static electricity generation link to monitor, record. According to the actual situation, anti-static access control system and static electricity online real-time monitoring system to achieve effective monitoring and recording of static electricity.
Static electricity in general is ‘difficult to see, and not easy to touch’, but it is almost everywhere, all the time, so the electrostatic protection is a comprehensive systematic project, in principle, electrostatic protection should be from the control of static electricity generation and control of static dissipation of two aspects, control of static electricity generation is mainly to control the process and the process of process. The main control of electrostatic generation is to control the process and the selection of materials in the process, control of electrostatic dissipation is mainly rapid and safe release of static electricity and neutralisation.
