Operating rules for PCBA chip placement processing:

1. There should be no food or beverages in the PCBA work area, smoking should be prohibited, and unrelated debris should not be placed. The work platform should be kept clean and tidy.

2. The surface that is welded during the processing of PCBA patches should not be taken with bare hands or fingers, as the grease secreted by human hands can reduce solderability, resulting in welding defects.

3. Reduce the operation process of PCBA and components to a minimum to prevent risks. In assembly areas where it is necessary to use gloves, dirty gloves can cause contamination, so gloves need to be replaced frequently when necessary.

4. Do not use oils that maintain the skin to apply to hands or various detergents containing silicone resin, as they can cause issues with solderability and adhesion performance of conformal coatings. There are specially manufactured detergents for PCBA welding surfaces available for use.

5. For EOS/ESD sensitive components and PCBA, it is necessary to use appropriate EOS/ESD markings for identification to avoid mixing with other components. In addition, to prevent ESD and EOS from endangering sensitive components, it is necessary to complete all operations, assembly, and testing on a workbench that can control static electricity.

6. Regularly inspect the EOS/ESD workstation and acknowledge that they can operate normally (anti static). The various risks of EOS/ESD components can be caused by incorrect grounding methods or the presence of oxides in the grounding connection, so special maintenance should be given to the joints of the "third line" grounding terminal.

7. Prevent stacking PCBAs, as it may cause physical damage. Special types of brackets should be equipped on the assembly surface and placed according to the type.

In PCBA SMT processing, strict adherence to these operating rules and correct operation are necessary to ensure the final quality of the product, reduce component damage, and reduce costs.