PCB board design of the 8 basic principles
The application of wave-crest welding technology and reflow welding technology are completely different in component layout design, PCB and pad graphic design and hole design.
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Thermal design requirements of PCBA
Due to the different heat capacity and heating conditions of pad and pin, the temperature to which pad and pin are heated during reflow welding is also different. If the temperature difference is relatively large, it may cause poor welding.
Nine basic principles of SMB design
Basic principles of SMB design: layout, wiring, wire width, printed wire spacing, selection of components, selection of PCB substrate, PCB anti-electromagnetic interference, PCB heat dissipation, and arc Angle.
PCB design and manufacturing guide
Surface mount technology is very convenient in the manufacture of many PCBS. Reliable and fast professional tools handle installation to ensure that there is no room for human error while speeding up the process.
How does PCB design handle signals across dividers?
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
From the welding point of view, what problems should be paid attention to in PCB design?
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
Should PCB design remove dead copper?
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
PCB(printed circuit board) manufacturing process and process details
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.
Multilayer PCB design
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
The first step of DFM: Reliability design of PCB circuit board wiring
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.
SMT process 17 requirements for component layout design
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.
PCB proofing design cloth pass rate and design efficiency skills
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
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