Why should the workshop eliminate and reduce static electricity?
Static protection and control is not just a matter of matching anti-static products, but a systematic work. It involves the manufacturing, assembly, processing, inspection, testing, maintenance, packaging, transportation, storage, and use of sensitive electronic products. It is also a series mode. Any mistake in any link will lead to the failure of the entire protection work. At the same time, it is directly related to the environment in which sensitive products are located (contacted objects, air atmosphere, humidity, ground, workbench, chair, processing equipment, tools, etc.) and the operator's clothing (including clothing, hats, shoes, gloves, wristbands, etc.). Any omission or mistake will lead to the failure of static protection work and ultimately cause immeasurable losses. It needs to establish a complete protection system including design, operation, inspection, internal audit, training, etc. under strict standards and specifications, and the work may involve various related departments.
1. First, define the scope of the electrostatic sensitive area; the company's electrostatic control procedures must be followed and implemented in this area. This includes not carrying unnecessary static-generating materials to this area, such as general plastic products and polystyrene foam.
The best way to reduce the amount of static electricity generated is to reduce the number of non-essential insulating materials in the work area as much as possible. (Insulating materials cannot conduct electricity. They are themselves high static electricity generators and carry static electricity and are prone to generate static electricity fields.
2. To prevent the generation of static electricity and static electricity fields, appropriate protective measures must be taken in the work area, such as conductive floors, conductive wax, etc.; personnel must wear static electricity shoes with static electricity dissipating soles and wear anti-static clothing. In particular, plastic parts on metal tools are not allowed in the static electricity protection area. Soldering irons, desoldering machines, testing equipment, etc. must be specially designed for safety anti-static; and unapproved equipment cannot be brought into the protection area.
3. Secondly, avoid loose and hanging clothing accessories from touching sensitive components-keep static electricity sensitive components and clothing at least 6 inches (15 cm) away.
4. It is a common misunderstanding that high humidity can solve the problem of static electricity, so there is no need to consider other methods to reduce static electricity generation. In fact, this is incorrect. Although high humidity can reduce the static electricity generated to a level that the human body cannot touch, it can also reduce the static electricity generated. 5. Always pay attention to the static safety area signs in your work environment. If you enter these areas, you should follow the static protection procedures established by the company, including isolating all people or objects that may generate static electricity outside the protection area. And check and confirm that all sensitive components passing through the static protection area are attached with appropriate and obvious static protection signs; however, do not assume that components without signs are static safe objects. 6. Although it is possible to determine which devices are static sensitive, it is a good working habit to treat all electronic components and assembly actions as static sensitive. It is easier to maintain strict static protection operations for all components you handle and treat it as a daily habitual work than to treat them differently according to the nature of individual components.