Layout Notes on Schematics

23 August 2019 Link

Mentioned below are all the points that should be carefully considered and added in the Layout Notes for a schematic:

  1. Identify High Current Density Nodes and mark the minimum metal width.
  2. Identify Sensitive nodes and mark them for shielding.
  3. Identify and mark the devices that require latchup protection
  4. Identify and mark an unusual metal requirements like metal width, type, spacing or number of vias.
  5. Mark Matched devices and elaborate on the placement eg. cross couple, common centroid, dummy devices, etc.
  6. Probe Point locations.
  7. Identify all well and substrate connections and mark them for PDKs not doing this automatically.