Blog
  • What is a PCBA test?

    The process of PCB Assembly is very complex, including PCB board manufacturing, component procurement and inspection, SMT assembly, DIP plug-in, PCBA test and many other important processes. Because in the process of production, various problems may occur due to improper equipment or operation, so it cannot make sure that the produced products are all qualified. Therefore, PCBA testing is needed to ensure that no quality problems occur with each product. The PCBA test mainly includes five forms: ICT test, FCT test, aging test, fatigue test, and harsh environment test....

    2018/06/16 zhengxiaowei 172

  • What is the PCBA stress test principle?

    First, the strain gauges are attached to several different positions on the PCB. When the process or work station is operated, the strain gauges are connected to the measurement instrument system to make the stress quantitatively display the records. Namely: Strain - Resistance Change - Voltage (or Current) Change - Magnification - Recording - Data Processing...

    2018/06/09 zhengxiaowei 153

  • The reason and solution of the poor wettability of PCBA soldering

    The reason and solution of the poor wettability of PCBA soldering...

    2018/05/29 zhengxiaowei 152

  • What is the PCBA inspection standard for finished products?

    What is the PCBA inspection standard for finished products...

    2018/05/24 zhengxiaowei 169

  • What are the PCBA workshop management requirements and precautions?

    PCBA production equipment and PCBA processing technology have certain requirements for the workshop's power supply, ventilation capacity, temperature, humidity, air cleanliness, anti-static, and production personnel wear accessories....

    2018/05/14 zhengxiaowei 194

  • Common PCBA Poor Welding Conditions

    There will be poor welding in PCBA prouction process, due to the influence of various uncontrollable factors such as plate, solder paste, flux, worker, environment and etc. What are the general conditions of poor welding?...

    2018/04/28 zhengxiaowei 146

  • What is the purpose of PCBA slice analysis?

    Generally the purpose of the PCBA slice analysis is to improve the PCB defects of surface and inside, anatomize the structure of the electronic components, and let the engineers know where to improve the optimization and further improve the product. At the same time, it is also used for SEM/EDS scanning electron microscopy, energy spectrum observation of morphology and analysis components. The suspected abnormal cracking and foreign body embedding found in SAM's samples can be observed and verified by slice method after complete inspection of such as X-ray....

    2018/04/16 zhengxiaowei 206

  • Why do PCBA proofing first?

    Before large quantities are produced, demanders generally choose a factory or several factories for PCBA proofing. But what is the purpose of this?The first is to check whether there is a problem with the PCBA design process or whether there is a need for modification. The second is to choose a strong factory that can ensure PCBA production yields and test pass rates. In this way, demanders will make an appropriate assessment of the delivery and quality of the product, and then start mass production....

    2018/04/09 zhengxiaowei 181