Import Technology File

A simpler alternative to create a technology database using a hand-written technology file is to import the technology from an existing Allegro .sip file that has been built using the same or a similar technology. For similar technologies, the technology file must be manually edited with the correct values for the target technology. After completing these edits, load the technology file into Virtuoso using the usual "Technology Manager" options.

You can import only technology information from Allegro using the translators by specifying the Technology Information (sip/mcm/brd) option in the Import Mode field.

The import of technology file includes mapping the following in SiP and OA:

• Padstack and symbol definitions of the SiP objects that map to OA cellviews including renaming to avoid same name cells in a library.
• Variants for symbols and padstacks that were modified at the instance level.
  • Translations, rotations, mirroring, and deletion of objects inside symbols
  • Padstack references (vertical offset in the layer stack), and unused pad suppression
• The symbols and padstacks with differing sets of parameters in SiP and OA
  • Top-level vias in OA that do not have mirrored parameters
• Derivation of cell names using signatures
• Layer mapping
  • Cross-section layers are mapped to layers with functions metal, dielectric, diestack
  • Mapping of non-cross-section layers with correspondence in cdsDefTechLib
  • Mapping of non-cross-section layers without correspondence in cdsDefTechLib

Related Topics

Create Technology File

Update Technology File

Constructs in the Technology File

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