PCBA Tech - The solution of PCBA processing virtual welding

The solution of PCBA processing virtual welding
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.
PCBA processing false welding is a common circuit failure, there are two reasons. One is in the production process, due to improper production process, when the time is unstable; the other is a long electrical use, some more serious heating parts, the solder joints are very easy A phenomenon caused by aging occurs. There are many ways to make an interpretation, so you might as well find Du Niang.

PCBA processing cold solder is generally caused by improper methods due to oxidation or impurities in the solder joints or poor soldering temperature. In essence, there is a separation layer between the solder and the pins. They are not fully exposed, and the naked eye cannot see its state, but its electrical characteristics are non-conductive or poor, which affects the circuit characteristics.

The electronic components must be stored away from moisture. The in-line electrical appliances can be slightly polished. When soldering, solder paste and flux can be used, preferably reflow soldering machine, manual soldering technique is better. Generally, there will not be "after long-term use of electrical appliances, some parts with severe heat generation, the solder joints of the solder feet are very likely to be caused by aging and peeling." This is because the substrate is not good.

The method to solve the PCBA processing virtual welding:

The question should be: Is there any good way to easily find the PCBA solder joints?

⑴ Judge the rough scope of the fault based on the occurrence of the fault phenomenon.
⑵ Observation of appearance, focus on larger components and components with large heat generation.
⑶ Observe with a magnifying glass.
⑷ Pull the circuit board
⑸ Shake the suspicious component by hand, and observe whether the solder joints of its pins are loose. 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, and produces standardized and qualified PCB products. We master complex process skills and use professional equipment such as AOI and Flying Probe to control production, X-ray inspection machines, etc. . Finally, we will use double FQC inspection of appearance to ensure shipment under IPC II standard or IPC III standard.