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Rules violations should never be waived. It is best to discuss the design rule causing violations, and then create additional rules, with corresponding documentation in Altium or in Confluence, to negate the violations.
Preset Design Rule Files
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Layout
There is far too much to cover in good layout. Therefore these will just highlight some high level items:
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File | Stackup | Notes | ||||
|---|---|---|---|---|---|---|
| 2 layer, 1oz from JLCPCB With widened trace and clearances | This is set to be the default in the NER template | ||||
| 2 layer, 1oz from JLCPCB Set to minimums |
Layout
There is far too much to cover in good layout. Therefore these will just highlight some high level items:
Electrical requirements, such as differential pairs, filtering, and avoidance of parasitic/coupling should take precedence in layout.
However, designers must take care to preserve aesthetics in layout. Ultimately, a clean looking board is a big part of the first impression we make on design judges
Alignment tools must be used to perfectly align and space components
Design rules will default to the minimum of what is manufacturable. It is best practice to increase trace widths and clearances wherever possible. You can even increase design rules if board space allows.
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All boards should include the names of board layout contributors. We require the format of first initial, followed by abbreviated class year. I.e. “M. McCauley '23” for Matt McCauley, class of 2023.
Board Stackup
The board layer stack manager must be updated with realistic layer stackup. If impedance control is used, the dielectric constants must also be accurate.
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This allows for exported STEPs to be accurate, and enables impedance control profiles |
The layer numbers of the PCB should also match those of our footprints ( ). If all footprints are compliant to these guidelines before importing to the PCB, this will happen automatically.
Board Outline
The board outline must be represented in a mechanical layer. For our boards this is typically M1. The board outline layer should include the outer boundary as well as any slots, cutouts, etc.
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