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Evaluation Standards for the Quality of PCB Circuit Boards (Part 1)
PCB News
Evaluation Standards for the Quality of PCB Circuit Boards (Part 1)

Evaluation Standards for the Quality of PCB Circuit Boards (Part 1)

2021-11-06
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Author:Frank

Evaluation Standards for the Quality of PCB Circuit Boards (Part 1)
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 the PCB factory is determined to solve the problem of environmental pollution, then FPC flexible circuit board products can be at the forefront of the market, and the PCB factory can get the opportunity to develop again.
The Internet era has broken the traditional marketing model, and a large number of resources have been gathered together to the greatest extent through the Internet, which has also accelerated the development speed of FPC flexible circuit boards, and then as the development speed accelerates, environmental problems will continue to appear in PCB factories. In front of him. However, with the development of the Internet, environmental protection and environmental informatization have also been developed by leaps and bounds. Environmental information data centers and green electronic procurement are gradually being applied to the actual production and operation fields.
    The quality of pcb circuit boards is generally judged by appearance, but it depends on experience. The quality of pcb circuit boards is very important. So what are the characteristics of good quality pcb circuit boards?

    1. 25 micron hole wall copper thickness
    Benefits: Enhance reliability, including improving the expansion resistance of the z-axis.
    Risks of not doing this:
    Blow holes or degassing, electrical connectivity problems during assembly (inner layer separation, hole wall breakage), or failure under load conditions in actual use. IPCClass2 (the standard adopted by most factories) requires 20% less copper plating.

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    2. No welding repair or open circuit repair
    Benefits: perfect circuit can ensure reliability and safety, no maintenance, no risk
    The risk of not doing so
    If repaired improperly, the circuit board will be broken. Even if the repair is ‘proper’, there is a risk of failure under load conditions (vibration, etc.), which may cause failure in actual use.
    3. Strictly control the service life of each surface treatment
    Benefits: solderability, reliability, and reduce the risk of moisture intrusion
    The risk of not doing so
    Due to the metallographic changes in the surface treatment of old circuit boards, soldering problems may occur, and moisture intrusion may cause problems such as delamination, separation (open circuit) of the inner layer and the hole wall during the assembly process and/or actual use. . 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.