Anti-static requirements for each major link in the production process
①Main links in production
The main links in production are: device procurement → factory inspection → aging screening → bulk warehouse management → material collection → material preparation → batching → installation → commissioning → high temperature aging → inspection → packaging → finished product storage → transportation → to users. Static safety points should be placed according to different production links.
②General requirements for static safety areas
a. The entrances and exits of the static safety area should be clearly marked as warnings, and anti-static shoe covers should be provided at the entrance to allow outsiders without static protection measures to enter the work area safely.
b. The room temperature in the safety area should be controlled between 150C and 200C, and the relative humidity should be between 50% and 70%. It is strictly forbidden to operate static sensitive devices in an environment with a humidity of less than 30%.
c. High voltage operations should be avoided in the static safety operation area.
d. Anti-static facilities in the safety area must not be moved or removed at will, and the working surface of the safety area must be well conductive.
e. Non-productive items (such as newspapers, books, food, handbags, etc.) are prohibited from being placed on the work surface in the operation area.
f. Drawings and materials used in the operation area must be placed in anti-static plastic bags to prevent the generation of static electricity when reading. Workers in the electrostatic safety area must wear anti-static work clothes and anti-static shoes.
g. Personnel in non-working areas are not allowed to enter without permission. Those who are allowed to enter must release static electricity at the entrance and wear anti-static clothing, shoes or shoe covers and other anti-static items. When entering, they must not touch the components, components and product terminals at will.
③Protection requirements for electrostatic sensitive devices in transportation, storage and custody
a. Electrostatic sensitive devices should be handled with care during transportation and should not be handled roughly to avoid damage to the device or peeling of the packaging.
b. All pins of electrostatic sensitive devices should be at the same potential during transportation.
c. The relative humidity in the warehouse where electrostatic sensitive devices are stored shall not be lower than 30% to 40%. The original packaging should be kept during the storage of electrostatic sensitive devices. If the original packaging needs to be replaced, it is necessary to use anti-static containers. Non-anti-static equipment must not be used to package or hold electrostatic sensitive devices.
d. Anti-static containers must have obvious anti-static labels. Anti-static signs should be posted in obvious locations in the warehouse where electrostatic sensitive devices are stored as a warning.