how to create a layer properties file ".lyp"?

Comments

• dick_freebird

  November 5

  "Creating" the .lyp is just (with an imported layout)
  File>Save Layers (or some such - away from the
  machines with klayout at present).

  Making it all pretty and orderly is a hand editing
  job, using either the layer window context / right-click,
  or sometimes the Edit>Layers menu branch.

  Tedious but only necessary once, to do. I have for a
  couple, using the Brand X techfile content and a lot
  of cut-n-paste.

  A clean import that made the layers "look and feel"
  same-same, from Big Iron tools' layer info, would
  be sweet (but low leverage, one time like I said).

  But I usually mess with foundry layers display
  anyway, preferring my own consistent appearance
  for various common layers to the "salad" that many
  PDKs (made by non-designers, non-layout-people
  by all appearances) deliver.
• blueman_44

  November 5

  There is a package 'tf_import' that imports a Cadence techfile and creates layer properties based on that data. It also takes in the layermap and display.drf.

  

  You can also download from here:
  https://sourceforge.net/projects/klayoutmatthias-tf-import/

  Once you've created the layer properties you just need to save them to a '.lyp' file

  File -> Save Layer Properties

  There are also few posts about this - you can search 'tf_import' in the forum and find them.

  Hope this helps.
• Matthias

  November 6

  Hi @blueman_44,

  thanks for pointing that out! I need to add that the techfile should be an exported ones. "Hand-written" techfiles are sometimes enhanced with Skill code the script can't digest.

  Matthias
• cwings

  November 11

  @blueman_44, @Matthias:
  Thanks for the great solution, I have tried the tf_import package.
  But unfortunately, it doesn't work out of box due to some unrecognized characters in the techfile.
  I am working on it.
  I am working in a company in Global Foundry 22 technology, so I can't share/discuss more details regarding the techfile, sorry for this.

  BRs,
  Cwings
• blueman_44

  November 12

  Like Matthias mentioned, you should be able to dump the techfile through Cadence's technology file manager tool. It will give you the option to select which sections of the techfile to dump. In this case you only need the layerDefinitions dumped (includes techLayers and techDisplays).

  Hope this helps.