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PCBA processing precautions

PCBA processing precautions
At present, the country has higher and higher requirements for environmental protection and greater efforts in link governance. This is a challenge but also an opportunity for PCB factories. If PCB factories are determined to solve the problem of environmental pollution, then FPC flexible circuit board products can be at the forefront of the market, and PCB factories can get opportunities for further development.
The choice from tin to PCBA in the PCBA processing process is also crucial. In the through-hole insertion process, the tin penetration of the PCB board is not good, and it is easy to cause problems such as virtual soldering, tin cracks and even missing parts.
About PCBA, we need to understand through tin

1. PCBA and tin
According to IPC standards, PCBA through-hole solder joints generally require more than 75% soldering. In other words, check that the hole height of the panel surface is not less than 75% (board thickness) during soldering, and the PCBA is suitable for 75%-100% through tin. The plated through holes are connected to the heat dissipation layer or the heat dissipation layer that plays a role of heat dissipation. PCBA tin penetration requires more than 50%.

The second is the influence factors of tin on PCBA

PCBA tin penetration is mainly affected by factors such as material, wave soldering process, flux, and manual soldering.
Specific factors affecting PCBA through tin

pcb board

1. Materials
Tin melted at high temperature has strong permeability, but not all soldering metals (PCB boards, components) can penetrate into it. For example, metal aluminum generally automatically forms a dense protective layer on its surface, and the difference in internal molecular structure also makes it difficult for other molecules to penetrate. Second, if there is an oxide layer on the surface of the weld metal, it will also prevent the penetration of molecules. We generally use flux treatment or gauze brush to clean.
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iPCB is happy to be your business partner. Our business goal is to become the most professional prototyping PCB manufacturer in the world. With more than ten years of experience in this field, we are committed to meeting the needs of customers from different industries in terms of quality, delivery, cost-effectiveness and any other demanding requirements. As one of the most experienced PCB manufacturers and SMT assemblers in China, we are proud to be your best business partner and good friend in all aspects of your PCB needs. We strive to make your research and development work easy and worry-free.

quality assurance

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.

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Our factory is located in China. For decades, Shenzhen has been known as the world's electronics R&D and manufacturing center. Our factory and website are approved by the Chinese government, so you can skip the middlemen and buy products on our website with confidence. Because we are a direct factory, this is the reason why 100% of our old customers continue to purchase on iPCB.

No minimum requirements

You can order as little as 1 PCB from us. We will not force you to buy things you really don't need to save money.

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Before you pay in the most timely manner, all your orders will receive free engineering document review services by our well-trained professional and technical personnel.