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There are several problems to understand in the design pcb drawing of SMT patch processing

288 Published by FASTPCBA 9月 06,2018

There are several problems to understand in the design pcb drawing of SMT patch processing:

The most important design in PCB processing is board drawing design. We need to pay attention to several problems in board drawing design:

First: create packages that are not in the package library.Before the PCB sheet drawing was designed, a component in the bitter schematic diagram could not find the encapsulation model in the encapsulation library, so the component encapsulation model editor should be used to create a new one. Only when the encapsulation model of the components used is complete in the encapsulation library (which can be multiple library files) can the PCB design be carried out smoothly.

Second: set design parameters of PCB sheet diagram.According to the requirement of circuit system design, the number, size and color of PCB board are set.

Third: load the network table.Load the network table generated by the schematic diagram and automatically load the component packaging model into the PCB design window.

Fourth: layout.The combination of automatic layout and manual layout can be adopted to put the component packaging model in the appropriate position within the PCB planning range, that is, to make the component layout neat, beautiful and conducive to wiring.

Fifth: wiring.Set the wiring design rules and start the automatic wiring. If the wiring is not completely successful, manual adjustment can be made.

Sixth. Inspection of design rules.The designed PCB board shall be designed and planned for inspection (check whether the components are overlapped, the network is short-circuited, etc.), and any errors shall be modified according to the error report.

Seventh: PCB board simulation analysis.The signal processing of PCB board is simulated to analyze the influence of layout and wiring on various parameters, so as to improve and modify it.design pcb drawing

Eighth: save the output.The designed PCB board drawings can be saved, layered, printed out PCB design files, etc.

design pcb drawing

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