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In terms of smt technology in PCB factories, flexible cracking means excessive bending of the PCB under ceramic chip capacitors. Ceramic chip capacitors cannot withstand excessive stress due to their brittleness. In order to obtain sufficient electrical performance, some printed circuit boards will require large capacitors. The stress on the capacitor may be caused by accidentally dropping or placing too many heavy objects at any stage of PCB assembly. The type of ceramic chip capacitor you use in the design stage should be able to handle the assembly pressure and should not be easily broken.
One of the most common mistakes made by PCB and PCBA board designers is that they cannot meet the operating environment of the circuit board during the design phase. Some PCB companies will exclude environmental assessment as a cost-cutting measure, and may even require designers to closely consider the materials in their designs. cost.
Environmental factors such as temperature, humidity and even G force will continue to act on the PCB. If the materials and design specifications used are not sufficient in terms of size and ability to handle these PCBA conditions, the resulting circuit board will always fail. According to it Position, this failure can be catastrophic for the company.
PCB assembly usually involves many participants, including designers, manufacturers, and electronic manufacturing service (EMS) providers. Usually, design companies outsource manufacturing to different companies for business reasons (such as lower costs and economies of scale). In the company, different participants need to constantly communicate, PCB circuit boards in order to smoothly deliver high-quality products.
What are the welding types of PCBA.
1, reflow soldering First of all, the first soldering process of PCBA is reflow soldering. After the SMT mounting is completed, the PCB board will be reflow soldered to complete the soldering of the patch.
2. Wave soldering Reflow soldering is the soldering of SMD components. For plug-in components, wave soldering is required. Generally, the PCB board is inserted and the components are installed, and then the plug-in components and PC are completed through the wave furnace. Welding of the B board of the chip factory.
3, for some large components or other factors, immersion tin soldering cannot pass wave soldering, so soldering is often done with a tin furnace, which is simple and convenient for soldering.
4. Manual soldering of smt patch Manual soldering means that employees use electric soldering iron to solder. Generally, manual soldering personnel of smt are needed in PCBA processing plants. PCBA board and PCB board are composed of multiple processes. Only through different PCBA soldering types can they be used. Produce a complete PCBA board and PCB board.
The above is an introduction to several types of soldering that affect PCBA design errors. One of the most common mistakes made by PCB board factory designers is that they cannot meet the environment in which the circuit board operates during the design stage. Some PCB companies will exclude environmental assessment as a cost-cutting measure., It may even require designers to carefully consider the cost of materials in their design. Therefore, the PCB board factory should understand the several types of soldering that affect the PCBA design error to prevent the error from occurring.
