Where PCB circuit board wiring needs to be checked

The application range of PCB circuit boards is very wide. A good PCB circuit board can not only improve the stability of electronic products, but also where the wiring of the PCB circuit board needs to be checked.

1. Whether the spacing between line and line, line and component pad, line and via, component pad and via, and via and via is reasonable, and whether it meets the production requirements.

2. Whether the width of the power line and the ground line is appropriate, whether the power supply and the ground line are tightly coupled, and whether there is a place in the middle to widen the ground line.

3. Whether the most optimal method is adopted for the key signal line, such as the length is most short, the protection line is added, and the input line and output line are significantly separated.

4. Whether there are separate ground wires for analog circuit and digital circuit.

5. Whether the graphics (such as icons, annotations) added to the PCB will form a signal short circuit.

6. Whether to correct some unsatisfactory lines.

7. Whether there is a process line on the PCB, whether the solder mask meets the requirements of the production process, whether the solder mask size is appropriate, and whether the character logo is pressed on the equipment pad.

8. Whether the edge of the outer frame of the power ground layer in the multilayer board is reduced, such as the copper foil of the power ground layer is exposed to easily form a short circuit.

Planning rules inspection results can be divided into two types: one is Report output, which generates inspection results reports; the other is On Line inspection, which checks the electrical rules and wiring rules of the circuit board during the wiring process.

The above is the place to check the PCB circuit board wiring. I hope it can help you. If you learn more about PCB circuit board information, you can pay attention to the update of Jingchuangda circuit board manufacturers.

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