Required inputs for PCB design.
Generalized inputs:
1:Mechanical drawing preferred in CAD that can be import in Layout.
2:BOM: Preferred in excel format.
3:Schematic Preferred in CAD.
4:Special instruction for your PCB preferred in word document format.
1:Mechanical drawing preferred in CAD that can be import in Layout.
Mechanical drawing should include following details
Board mounting holes with their size .
Position of fixed locations parts.
Keep-out areas with indication like no parts, no copper with board side indication like top, bottom or both.
Details for Height restriction if any and PCB Thickness.
2. BOM:
List of all components used in the assembly.Must include alternate Part no.
3. Schematic:
- Preliminary CAD schematics
- Or even hand-drawn data
- Mounting holes to chassis ground must be there
- Indication for high current or high voltage nets
- Indication for nets requiring special routing for e.g. differential, shielding, controlled-Z, etc.
4. Special instruction for your PCB
- Layers, Max layers count.
- Material If Special Material required for the PCB.
- PCB Thickness:Sometimes we prefer Thick PCB due to heavy components.
- Copper thickness:For High current we prefer thicker copper.
- Layout design rules if any specific:Mostly for high speed designs
- Signal integrity requirement.
- Any voltage isolation requirement:High Voltage circuitry.
- Any text item to appear on copper layer or in silk screen like, part no., assembly no., revision no., company name or logo.
- Tolerance for Particular Designs.
- Add a Fabrication Details if Possible.
