Blog
  • 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 194

  • 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 176

  • PCBA repair process and purpose

    During the manufacturing process of PCBA, The short circuit PCBA boards caused by various reasons, so the worker need to do the repairing for PCBA boards. Repairing steps as below: Whole board inspection – Power on detection – Checking out problem points – Self-test after repairing – Second test – Second full board inspection...

    2018/03/31 zhengxiaowei 182

  • The relationship between surface technology and length of storage of PCB.

    The relationship between surface technology and length of storage of PCB....

    2018/03/23 zhengxiaowei 188

  • How to choose PCBA packaging?

    If a product that has undergone multiple processes has problems during the final shipping process, we will lose a lot. Therefore, we must pay special attention to packaging during transportation. We should prepare the packaging according to the customer's requirements and the characteristics of the product....

    2018/03/16 zhengxiaowei 142

  • What is one-step service?

    One-stop PCBA service means that all the information is sent to the factory which directly assembles the finished product which will be sent to the customer....

    2018/03/08 zhengxiaowei 115

  • How to Solve the Quality Problem in the Processing of SMT Patch

    Quality IssuesSolutions Gluing ProcessGluing wire/spillover Revise the gluing process parameters; Control the amount of gluing; Adjust the process parameters of SMT patch;Plugging of glue mouthEmpty g...

    2017/12/29 zhengxiaowei 119

  • Mod-8 Counter Using D-Type Flip-Flops

    We will need three flip-flops to give the necessary eight states from 000 (state 0) through to 111 (state 7). We begin by, as shown in Table 7.1, listing the eight possible present states of the circuit alongside the next states that must follow....

    2017/12/02 zhengxiaowei 18