Before placing your order:
- Check all connections in your schematic are present
- Insure inappropriate connections are not made including short-circuits.
- Review the Edit Nets Dialog.
- Resolve Job | Analyze errors.
- View each layer separately and all together.
- Check that the silk screen does not overlap pads.
- Review Job | Settings.
- Check all fields of Job | Parts List.
- Verify that device orientation markings are clear on silk screen and match markings on devices. 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.
- Check for uniform orientation for ICs and other polarized devices to reduce assembly errors.
- Verify component packages don't overlap.
- Check copper footprints are sized right for components.
- Check that copper footprints exceed component 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.
- Check that assembly by Pad2Pad is per "standard" Capabilities.
If you are requesting assembly by Pad2Pad:
- If you choose to supply components to Pad2Pad: please supply 2% overage but not less than one over the nominal quantity; 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.
