PCB board layout steps

One of the most important designs in PCB process is the board layout.  

There are several issues we need to pay attention to board layout.

First: Create package that is not in the package library. Before designing the PCB board, if a component in the schematic diagram cannot find package model in the package library, you need to use the component package model editor to create a new one. In order to ensure the smooth design of the PCB, ensure that the package model of the used components is in the package library (Can be a plurality of library files) is very critical.

Second: set the PCB board design parameters. Determine the layer count, size, color, etc. according to the needs of the circuit design system.

Third: Load the network table. Load the netlist generated by the schematic, automatically load the component package model into the PCB design window.

Fourth: Layout. The combination of automatic layout and manual layout can be used to place the component package model in the proper position within the PCB outline. The component layout should be neat, beautiful, and convenient for lines routing.

Fifth: Routing. Set the routing rules and start automatic routing. If the routing is not completely successful, you can make manual adjustments.

Sixth: design rule check. Check the designed PCB board (check whether the components overlap, whether the network is short-circuited, etc.), if there is an error, modify it according to the error reported.

Seventh: PCB board simulation analysis. Simulate the signal processing of the PCB board, mainly analyzes the influence of the layout and routing on parameters, so as to improve and optimize.

Eighth: Save the output. The designed PCB board diagram be saved, layer printed, and output PCB design files.