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Transfer custom vias (variant) from a design A to a design B

frogconsultant

 Dear All,

 Does someone know how to re-use multiple VIAs variant created and saved from a design A to a design B? I do not have technology right to save it in the PDK directory so apart recreating all the custom VIAs in the new layout window, how is it possible to re-use the work already done?

 Thanks for your help, 

  • You can create new technology library only with vias and then reference both your standard technology library and vias liblary by your design library.

  • In fact when you create your design library, you "reference" the technology library rather than "attach" it, the design library is also an incremental technology database, and so vias and constraints can be created there and accessible for all designs within that library.

    Alternatively you may be able to use the File->Load Physical View to import parts of another design (including constraints and other info) into the current design (this is a feature of VLS XL).

    Regards,

    Andrew.

  •  Dear Themperek,

    Should I copy locally the current technology library and then edit the ASCII file of this library to have only vias definition information? In this case, this new technology library should be attached to the original technology library or not?

     Thanks for your feedback

  •  Dear Andrew,

    Do you mind tell me how to save these constraints and other info into a file?

    I see that we could reference multiple technology libraris to a new library. That's sounds interesting. In the case of already built library, how could I reference a new technology library to it with added vias for example?

     Best regards,

  •  Hi Andrew,

     I have done the test by building a template layout with contraints and custom vias. It works for the contraints part so I could the same rules changes from the previous design.

     It does not work for the custom VIAs. Could you let me know how to transfer the custom VIAs from this template to a new design in order to avoid redoing the same thing?

    Thanks, 

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