PCBA SMT processing control

In PCBA SMT processing, quota management should be carried out on solder paste, SMT adhesive and component loss as one of the key process control contents. PCBA processing and production directly affect the quality of products, so it is necessary to control factors such as technological parameters, process, personnel, equipment, materials, processing testing and workshop environment.

Key positions should have clear job responsibility system. PCB operators should be strictly trained and assessed, with certificates on duty. PCB manufacturers should have a set of formal production management measures, such as the implementation of the first piece inspection, self-inspection, mutual inspection and inspector inspection system, the previous process inspection failed cannot be transferred to the next process.

1. Product batch management. The nonconforming product control procedure shall specify the isolation, identification, recording, review and disposal of nonconforming products. Normally, SMA should not be repaired more than three times and components should not be repaired more than twice.

2. Maintenance of PCB manufacturing and production equipment. The key equipment should be checked by full-time maintenance personnel, so that the equipment is always in good condition, the state of the equipment to implement tracking and monitoring, timely find problems, take corrective and preventive measures, and timely maintenance and repair.

3. Production environment

(1) water and electricity supply.

PCBA production line environment requirements - temperature, humidity, noise, cleanliness.

(3) PCBA field (including components library) anti-static system.

(4) PCBA production line access system, equipment operation procedures, process discipline.

4, the production site to achieve reasonable positioning, correct identification; Warehouse materials, work in progress classified storage, stacked neatly, consistent books.

5. Civilized production. Including: clean, no debris; Civilized operation, no wild and disorderly operation. Site management should have system, inspection, assessment and record, and daily "6S" (sorting, rectification, cleaning, cleaning, literacy and service) activities.