The timeliness of FPC products after using plasma cleaning machine to clean:
Plasma cleaners have air and vacuum plasma cleaning equipment. The prices of plasma cleaners are different. The atmosphere is determined by the parameters of the gun head, rotating and direct spray gun heads of the supporting assembly line, while the vacuum plasma cleaner is based on the chamber.

The plasma cleaning machine uses gas as the cleaning medium. When working, the plasma in the cleaning chamber gently washes the surface of the object to be cleaned, and the organic pollutants can be thoroughly cleaned out in a short period of time. At the same time, the pollutants are sucked away by the vacuum pump. Its cleaning degree reaches molecular level. In order to verify the effect of the plasma cleaner, the RFU value can be measured by SITA CI's surface cleanliness system, and the RFU value (Relative Fluorescence Units) is used to indicate the level of cleanliness. RFU is the relative fluorescence intensity value. The larger the RFU value, the higher the content of residual contaminants on the surface of the part.
Because plasma treatment manifests in chemical and physical changes. When the physical changes are made, the surface of the material is modified and roughened. After etching, the protrusions on the surface increase and the surface area is increased. If exposed to polluted air and mixed with dust, oil and impurities, the surface energy will gradually decrease. During chemical changes, oxygen-containing polar groups such as hydroxyl and carboxyl groups will be introduced during plasma treatment. These active molecules are time-sensitive and are prone to chemical changes with other substances. The retention time of the surface energy after treatment is difficult to determine. Different gases, power, processing time, and placement environment will have an impact on the timeliness of the surface of the material. The verified timeliness of FPC products after cleaning is: 1 week (confirm with the contact angle measurement data, the smaller the contact angle value, the higher the dyne value)