Moisture-proof and anti-static measures in PCBA processing

In the process of PCBA processing, moisture-proof and anti-static are crucial links, which are directly related to the performance and reliability of electronic products. This article will discuss moisture-proof and anti-static measures in PCBA processing to ensure product quality and stability.

1. Moisture-proof measures

1.1 Environmental control

The PCBA processing workshop needs to maintain a relatively constant temperature and humidity, usually controlled within the range of 20-25 degrees Celsius and 40%-60% relative humidity. This is conducive to preventing PCB boards and components from absorbing moisture and reducing the corrosion and impact of moisture on electronic components.

1.2 Packaging and storage

PCB boards and components need to be sealed and stored during processing to prevent them from being invaded by moisture in the air. Common packaging methods include vacuum packaging, desiccant packaging, etc. Sealed bags or sealed boxes can be used for storage to keep them dry.

1.3 Desiccant and dehumidification equipment

Desiccant and dehumidification equipment are used in PCBA processing workshops to help reduce the humidity in the air and prevent the impact of moisture on electronic products. Desiccant can be placed in storage box or processing workshop, and dehumidification equipment can dehumidify the workshop air regularly.

2. Anti-static measures

2.1 Grounding protection

During PCBA processing, all equipment and operators should be grounded to ensure the release and guidance of static electricity. The ground connection should be firm and reliable, and the grounding resistance should meet the standard requirements to ensure that static electricity will not damage electronic products.

2.2 Static elimination equipment

Static elimination equipment should be configured in the PCBA processing workshop, such as static floor, static eliminator, static foot cover, etc. These equipment can effectively release static electricity on the human body and equipment to the ground, reducing the impact of static electricity on electronic products.

2.3 Anti-static work clothes and tools

Operators should wear anti-static work clothes and use anti-static tools such as anti-static gloves and anti-static vacuum cleaners during PCBA processing. These tools and equipment can reduce the generation and transmission of human static electricity and protect electronic products from static electricity.

Conclusion

During PCBA processing, moisture-proof and anti-static measures are the key to ensuring product quality and stability. Through the comprehensive application of various measures such as environmental control, packaging storage, moisture absorption and dehumidification, grounding protection, static elimination equipment and anti-static tools, the impact of moisture and static electricity on electronic products can be effectively reduced to ensure product performance and reliability. PCBA processing companies should pay attention to moisture and anti-static work, establish a complete management system and operating procedures, and ensure the effective implementation of measures.