Common treatment methods are added sewing capacitor and bridge :1, sewing capacitor, 2, bridge, 3, multi-layer wiring, 4, lead bending less, the better, 5, the shorter the better, 6, lead layer alternating less, the better, 7, pay attention to parallel cr
There are the following factors affecting PCB welding quality: PCB diagram, circuit board quality, device quality, device pin oxidation degree, solder paste quality, solder paste printing quality, placement machine programming accuracy, placement machine
PCB design service process: 1. The customer provides schematic diagram to consult PCB design; 2. 2. Evaluate quotation according to schematic diagram and customer design requirements;3. The customer confirms the quotation, signs the contract and pays the
To summarize, the production process of a typical pcb factory is as follows: blanking → inner fabrication → pressing → drilling → copper plating → outer fabrication → soldering paint printing → text printing → surface treatment → contour processing.
The following operations will be carried out in the maintenance technology: 1, inspection of components, 2, welding state analysis, 3, detection of components direction, 4, tool inspection of components, 5, power-on test
Width and spacing of printed wire are important design parameters, which affect not only the electrical performance and electromagnetic compatibility of PCB, but also the manufacturability and reliability of PCB.
Component layout shall be designed according to SMT electronic processing production equipment and process characteristics and requirements. Different processes, such as reflow welding and wave soldering, have different layouts for components.
To provide you with effective skills to improve PCB design spread rate and design efficiency: 1, determine the number of PCB layers, 2, design rules and restrictions, 3, component layout, 4, fan out design, 5, manual wiring and key signal processing, 6, a
In high-speed logic and circuit design, for some key signals, such as clock, control signals, to add the source end matching resistance, so that the signal will be reflected back from the load end, because the source impedance matching, the reflected sign
PCB design engineers need to master a wide range of knowledge system, including electrical theory, component performance, digital circuit and analog circuit, PCBA processing process and DFM manufacturability theory, schematic drawing and Layout.
Drawing pads with filler blocks can pass DRC inspection when designing lines, but it is not feasible for machining. Therefore, similar pads cannot directly generate solder resistance data.
PCBA refers to a machining process, and the process on PCB board has been completed before it is calculated as PCBA. PCB refers to a blank printed circuit board without any parts, that is, PCBA is a finished board, PCB is a bare board.
