PCB Manufacturing Checklist

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Before placing your order:

• Check your circuit:
  All connections in your schematic are present.
  Inappropriate connections are not made including short-circuits.
  Review the Edit Nets Dialog.
• On the silk screen layer check that:
  Silk screen does not overlap pads.
  Component orientation markings are clear and match markings on devices.
  Silk screen will be visible after component is mounted to allow inspection.
  Component package outlines don't overlap.
  Diode cathodes are on the pad next to the silk screen dot or line.
  DIP IC pin 1 is near the silk screen semi-circle.
  Quad IC pin 1 is near the silk screen beveled corner.
  
• Resolve Job | Analyze errors.
• Review Job | Settings.
• Review all fields of Job | Parts List.
• View each layer separately and all together.
• Check for uniform orientation for ICs and other polarized devices to reduce assembly errors.
• Check copper footprints are sized right for components.
  
• Check that copper footprints for SMT devices are longer than leads to allow inspection of solder joint.
• Export your layout to DXF to verify alignment if you plan to make a custom enclosure at eMachineShop.
  

If you are requesting assembly by Pad2Pad:

• Check that each component complies with Pad2Pad assembly capabilities - only complying components will be assembled.
  
• If you choose to supply components to Pad2Pad: please supply overage per the table below; and mark each set of components with the appropriate designator (R1, U1, etc.).
• The address to ship components to and instructions will be shown by the software upon ordering.
  

It is also recommended to check that:

• Traces width is at least .008".
• Hole diameter is at least .015".
• Silk screen line width is at least .008" wide.
• Edge gaps between copper and board edge are at least .020" for V-scoring or .060" for tab-routing or .010" for Individual routing.
• Pads are unmasked at those made with Polygon or Circle tool.
• Four layer boards - select View | layers... Set checkmark next to "1st inner" and "2nd inner" to open a four-layer view and see  the inner layers.  Use the Window menu to select the original view or just close the layers dialog.

No checklist is 100% complete and must not be taken as a substitute for careful work.

Once you have thoroughly checked your design, you are ready for ordering.

Upon receiving your boards it is strongly recommended to:

• Test or at least visually inspect the bare boards (four layer boards must be electrically tested).
• Assemble and test one board before assembling all boards.
• Test a board alone prior to placing the board into a system.

Assembly overage table

When supplying parts to Pad2Pad for assembly, please provide these approximate overages.