PCB processing is a widely used integrated technology in the electronic manufacturing industry. Since it frequently involves various electrostatic-sensitive components, specific processing techniques must adhere to strict static electricity protection measures. As a result, the requirements for static electricity protection in PCB processing are both essential and stringent. Electrostatic warning signs should be prominently displayed in the processing areas, on equipment, components, or packaging to alert staff about the risks of electrostatic discharge or electrical overload during operations. Furthermore, what are the anti-static requirements?
1. Workshop anti-static requirements
1. Based on product production standards, the workshop must be equipped with appropriate anti-static facilities, ensuring the grounding wire is both independent and reliable. Maintain a constant temperature and humidity in the workshop. Designate static-safe working areas and prominently display anti-static warning signs. The grounding system outside the workshop should be inspected annually, while the grounding systems within the workshop, such as floors and workbenches, should be inspected every six months, with corresponding records kept. The workshop’s temperature and humidity should be controlled at (25±2) degrees Celsius and 65%±5% RH, measured twice daily with records maintained.
2. Employee Electrostatic Protection Requirements:
1. To access the anti-static area, individuals must wear designated anti-static overalls and shoes.
2. Before handling electrostatic-sensitive components, grounding wrist straps or foot straps must be worn and tested for effectiveness.
3. Items that are prone to generating static electricity are strictly prohibited in the anti-static area.
4. Electrostatic-sensitive components must be stored in anti-static packaging during handling, storage, and distribution.
5. Anti-static packaging may only be opened after implementing the necessary anti-static measures.
6. Trolleys and shelves in the anti-static area must include proper grounding devices.
7. Anti-static clothing and shoes must not be worn outside the work area and should be cleaned regularly as per regulations.
8. Only cleaning agents approved by electrostatic protection personnel should be used for cleaning the anti-static work surface.
9. Avoid placing static-sensitive components and circuit boards near plastic products or tools (e.g., computers).
10. Ensure all tools and machines are properly grounded.
11. Utilize static protection table mats.
12. Employees without wristbands must not approach static protection workstations.
13. Report any potential causes of electrostatic damage immediately.
3. Operational Considerations:
1. Before handling components, touch the work surface with both hands to discharge static electricity through the anti-static surface.
2. Position devices pin-down on the table to facilitate static dissipation.
3. When handling integrated circuits, grasp the body, avoiding contact with the pins.
4. When operating electronic components, hold them by the edges of the PCB, avoiding direct contact with the components or circuits.
5. Do not drag or slide electronic components across any surfaces.
6. Non-conductive materials should remain at least 1 meter away from static-safe work areas.
7. Components and PCB circuit boards should only be removed from anti-static packaging within static-safe work areas.
8. Place unused static-sensitive components temporarily in anti-static containers or packaging.
9. Minimize the frequency of handling to the lowest practical limit.
1. Workshop anti-static requirements
1. Based on product production standards, the workshop must be equipped with appropriate anti-static facilities, ensuring the grounding wire is both independent and reliable. Maintain a constant temperature and humidity in the workshop. Designate static-safe working areas and prominently display anti-static warning signs. The grounding system outside the workshop should be inspected annually, while the grounding systems within the workshop, such as floors and workbenches, should be inspected every six months, with corresponding records kept. The workshop’s temperature and humidity should be controlled at (25±2) degrees Celsius and 65%±5% RH, measured twice daily with records maintained.
2. Employee Electrostatic Protection Requirements:
1. To access the anti-static area, individuals must wear designated anti-static overalls and shoes.
2. Before handling electrostatic-sensitive components, grounding wrist straps or foot straps must be worn and tested for effectiveness.
3. Items that are prone to generating static electricity are strictly prohibited in the anti-static area.
4. Electrostatic-sensitive components must be stored in anti-static packaging during handling, storage, and distribution.
5. Anti-static packaging may only be opened after implementing the necessary anti-static measures.
6. Trolleys and shelves in the anti-static area must include proper grounding devices.
7. Anti-static clothing and shoes must not be worn outside the work area and should be cleaned regularly as per regulations.
8. Only cleaning agents approved by electrostatic protection personnel should be used for cleaning the anti-static work surface.
9. Avoid placing static-sensitive components and circuit boards near plastic products or tools (e.g., computers).
10. Ensure all tools and machines are properly grounded.
11. Utilize static protection table mats.
12. Employees without wristbands must not approach static protection workstations.
13. Report any potential causes of electrostatic damage immediately.
3. Operational Considerations:
1. Before handling components, touch the work surface with both hands to discharge static electricity through the anti-static surface.
2. Position devices pin-down on the table to facilitate static dissipation.
3. When handling integrated circuits, grasp the body, avoiding contact with the pins.
4. When operating electronic components, hold them by the edges of the PCB, avoiding direct contact with the components or circuits.
5. Do not drag or slide electronic components across any surfaces.
6. Non-conductive materials should remain at least 1 meter away from static-safe work areas.
7. Components and PCB circuit boards should only be removed from anti-static packaging within static-safe work areas.
8. Place unused static-sensitive components temporarily in anti-static containers or packaging.
9. Minimize the frequency of handling to the lowest practical limit.
