The external processing of three anti-paint is bound to cause the continuous transfer of PCBA, which is easy to cause collision, ESD electrostatic breakdown and other potential defects. PCBA factories need to be equipped with three anti-paint spraying pro
PCB pressing process control. After PCB has been pressed and baked, the Tg values of the samples can be measured twice by the same method and the same machine.
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transfer personnel once lifted the amount of the board is too much, the component is too large, the board is not lifted when transferring, but dragged up along the trend, constitute the board Angle and the board surface conflict and scratch the board surf
PCB board drawing design is a complex and simple process. For the same circuit or the same instrument, even if the circuit with exactly the same components and parameters, the result may be very different due to the different component layout design and e
Introduction of nickel electroplating process for printed circuit board PCBPCB (English PrintedCircuieBoard printed circuit board is short for) with nickel plating as the substrate coating of precious metals and base metals, for some single-sided printed
In the input and input circuits of the LED switching power supply, each circuit is composed of three main components, which are filter capacitor, power switch or rectifier, inductor or transformer.
Methods to resolve printing errors in the repair process: 1. Printing speed, 2. Printing method, 3. Scraper type, 4. Scraper adjustment
Solder joint as a direct result of welding, its quality and reliability determine the quality of electronic products. That is to say, in the production process, the quality of assembly is ultimately reflected in the quality of welding.
in order to inhibit the crosstalk between PCB circuit board wires, in the design of wiring should be as far as possible to avoid long distance equal wiring, as far as possible to open the distance between lines, signal line and ground and power line as fa
Product quality improvement Due to the small size and strong function of chip integrated circuit, one chip integrated circuit can realize the functions of several THT circuits on the SMT circuit board, so the probability of failure of the circuit board is
The designer determines the electrical performance and function of the components in the system structure and detailed circuit design stage, and determines the packaging form and structure of the surface assembled components in the SMT design stage accord
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