The cost of design and mask sets have dramatically increased with the most advanced processes. It is critical for design teams and mask data preparation teams to include robust and repeatable gdsii library manipulation tools in their flow in order to increase their productivity and remove risk of error.

During the DFM and Mask Data Preparation, designers may have to switch entire gdsii library cell hierarchies in order to incorporate last minute changes.

GOTreplace extracts any cell hierarchy from a GDSII or OASIS ® layout database and replaces it for a safe and easy last minute adjustment:

  • ECO changes
  • ROM code replacement
  • Revision code replacement
  • Programmable customization

GOTreplace, mainly used in multi-chip assemblies and chip information extractions creates a new version of the layout database in minutes.

GOTreplace is fully integrated in XYALIS layout manipulation suite and in XYALIS Mask Data Preparation solution. It handles standard layout: GDSII, OASIS ® and works directly on compressed of gzipped files.

GOTreplace can be run in command line mode for automatic processing and easy inclusion in an existing flow.


  • Safe ECO changes
  • Fast revisions of chips and multi-chip assemblies


  • Parameterized renaming style
  • Bounding box checking
  • Recursive call checking
  • Removes all unused cells from GDSII/OASIS ® database
  • Directly operates on gzipped files
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