PCBA Tech - What are the operating rules for PCBA patch processing

What are the operating rules for PCBA patch processing
PCBA passes through SMT on the empty PCB board, and then goes through the production process of DIP plug-in. It will involve a lot of fine and complicated process and some sensitive components. If the operation is not standardized, it will cause process defects or components. Damage, affecting product quality and increasing processing costs. Therefore, in PCBA processing, it is necessary to abide by the relevant operating rules and operate in strict accordance with the requirements. The following is a summary of the PCBA processing plant of Baiqiancheng.

Operation rules of PCBA patch processing:

1. There should not be any food or drink in the PCBA work area, smoking is prohibited, no sundries unrelated to work should be placed, and the workbench should be kept clean and tidy.

2. During PCBA processing, the welded surface cannot be taken with bare hands or fingers, because the grease secreted by human hands will reduce the weldability and easily lead to welding defects.
3. The operation steps for PCBA and components are reduced to a minimum to prevent danger. In assembly areas where gloves must be used, soiled gloves will cause contamination, so gloves must be replaced frequently when necessary.

4. Do not use skin-protecting oils to coat hands or various silicone-containing detergents, as they can cause problems in solderability and adhesion of conformal coatings. A specially formulated detergent for PCBA soldering surface is available.

5. Components and PCBA that are sensitive to EOS/ESD must be marked with appropriate EOS/ESD marks to avoid confusion with other components. In addition, in order to prevent ESD and EOS from endangering sensitive components, all operations, assembly and testing must be completed on a workbench that can control static electricity.

6. Regularly check EOS/ESD workbenches to confirm that they can work normally (anti-static). The various dangers of EOS/ESD components can be caused by incorrect grounding methods or oxides in the ground connection parts. Therefore, special protection should be given to the "third line" grounding terminal joints.
7. It is forbidden to stack PCBA, otherwise physical damage will occur. There should be dedicated various brackets on the assembly work surface, and they should be placed according to the type.

In the PCBA patch processing, these operating rules should be strictly followed, and correct operation can ensure the final use quality of the product, and reduce the damage of the components and reduce the cost.iPCB has passed ISO9001:2008, ISO14001, UL, CQC and other quality management system certifications, produces standardized and qualified PCB products, masters complex process technology, and uses professional equipment such as AOI and Flying Probe to control production and X-ray inspection machines. Finally, we will use double FQC inspection of appearance to ensure shipment under IPC II standard or IPC III standard.