Removing $ from cell names

Removing $ from cell names

Note: Instructions and macro updated 11/9/2021
Macro originally written by the RIT Integrated Photonics Group, contact: stefan.preble@rit.edu



Instructions:

(See the bottom of this page for the attached reference_rename.lym macro file).
  1. Place the macro file in the PDK’s pymacros folder (example here is for PDK v4.0c)


  2. Once your layout is complete, back up your layout because the following steps will result in a layout with no PCells.
  3. Go to File -> Save As and save your layout without cell context by unchecking “Store PCell and library context information”.
  4. Close your layout, and re-open the new file created in step 3.
  5. Select Macros -> Library Reference -> Replace instances with components from PDK library. This will attempt to ensure that every instance of the PDK components references the official PDK component in the libraries. This may not be the case in your design if you improperly copied/pasted components and/or combined multiple layouts together.


  6. Go to File -> Save As and again save your layout without cell context by unchecking “Store PCell and library context information”.
  7. Close your layout, and re-open it the new file created in step 6.
  8. Select Macros -> Library Reference -> Remove $’s from PDK components. This will remove $ signs from the PDK cell names.
  9. Save your layout again without cell context by unchecking “Store PCell and library context information”.

Note: The selection “Optional – Explode All Arrays” used to be required by MOSIS, the former MPW aggregator for AIM Photonics. It will remove all arrays (which will result in a larger file size). This has been left in the macro in case anyone needs it, but it is no longer required for layout submission at AIM.



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