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Change BB Via Configuration after adding additional layer

chadga

Hi,

I am using a BB via to take my track from TOP layer to INNER Layer 1. Now due to not enough layers to complete the designs i have added an extra layer(Signal1) between TOP and INNER Layer 1. Now my BB Via will automatically get updated and will be passing from TOP to Inner Layer 1. But now i want to change my BB Via configuration, i want it to be from Top to Signal1. How to proceed with this. I can change the routed track from layer1 to Signal1, but my BB Via will still run from TOP to Inner layer 1. 

Is there a solution to this problem? Kindly help me on this.

Regards,

Chadga

  • mcatramb91

    Hi Chadga,

    In 17.2 Padstack Editor, there is a new setting under the Options tab that will lock the layer span of a BB Via so if you add layer between the via layer span the via will not expand.

    Click on the Options Tab and enable "Lock Layer Span".  This will maintain the via depth (number of layers) even if you add additional layers in between the span.

    Hope this helps,

    Mike Catrambone

  • chadga
    in reply to mcatramb91

    Hi Mike,

    Thank you very much!! It worked.

    Regards,

    Chadga

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