PCB design flow

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PCB design flow

The PCB design flow is divided into six steps: netlist input, rule setting, component layout, wiring, inspection, review, and output.

2.1 Netlist input

There are two ways to input the netlist. One is to use PowerLogic's OLE PowerPCB Connection function, select Send Netlist, and apply OLE function, you can keep the schematic and PCB diagram consistent at all times, and minimize the possibility of error. Another method is to load the netlist directly in the PowerPCB, select File->Import, and enter the netlist generated by the schematic.

2.2 Rule settings

If you have already set the PCB design rules in the schematic design stage, you don't need to set these rules anymore, because when you enter the netlist, the design rules have been entered into the PowerPCB with the netlist. If the design rules are modified, the schematic must be synchronized to ensure that the schematic and PCB are consistent. In addition to design rules and layer definitions, there are some rules that need to be set, such as Pad Stacks, which need to modify the size of standard vias. If the designer has created a new pad or via, be sure to add Layer 25.

note:

PCB design rules, layer definitions, via settings, and CAM output settings have been created as default startup files. The name is Default.stp. After the netlist is entered, the power network and ground are assigned to the power and ground layers according to the actual design conditions. And set other advanced rules. After all the rules are set, in PowerLogic, use the Rules From PCB function of OLE PowerPCB Connection to update the rule settings in the schematic to ensure that the rules of the schematic and the PCB are consistent.