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Problem with auto via using custom via variant

blankman

Hi,

 

I’m, looking to create a custom via variant, and then use this in the auto via tool. However when I go to do this the number of rows/columns generated doesn’t fill the selected metal area, only uses the number defined in the custom via variant. Is there a means of setting the auto via tool to fill the full metal area using the custom via variant?

 

Thanks,

Brian.

 

 

Parents

  • Hi Brian,

    I'm not 100% clear what you are trying to do here. The auto via feature (of the "create via" command) will try to fill overlapping regions with as many cuts as possible. A via variant is a via with (non-default) parameters set. and is used when you know exactly what via values you want to use.

    So using the auto via feature is not consistent with using via variants. (Or have I misunderstood something)

    You may want to click the "options" button on the create via form. This provides a few more options about how the cut array is generated.

    Also, remember that the vias will be DRC correct, so if it is not doing what you want, create the via with the values you want manually (turn off the  "compute" button and click "Reset Parameters to.." .Viadef defaults.

    Then run the DRC checker manually; verify->design->process rules...OK

    This will flag any DRC rules and may give you an idea why it's not generating the via you want.

    BTW, the above refers to using Layout XL, not L

    Regards

     

    Colin

     

    Colin

Reply

  • Hi Brian,

    I'm not 100% clear what you are trying to do here. The auto via feature (of the "create via" command) will try to fill overlapping regions with as many cuts as possible. A via variant is a via with (non-default) parameters set. and is used when you know exactly what via values you want to use.

    So using the auto via feature is not consistent with using via variants. (Or have I misunderstood something)

    You may want to click the "options" button on the create via form. This provides a few more options about how the cut array is generated.

    Also, remember that the vias will be DRC correct, so if it is not doing what you want, create the via with the values you want manually (turn off the  "compute" button and click "Reset Parameters to.." .Viadef defaults.

    Then run the DRC checker manually; verify->design->process rules...OK

    This will flag any DRC rules and may give you an idea why it's not generating the via you want.

    BTW, the above refers to using Layout XL, not L

    Regards

     

    Colin

     

    Colin

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