add additional via

[rays]

when I route using 15.0, there is only 1 option from the dropdown list for via. how can I add another via padstack onto the option list?

[Skip Yutkus]

You can add vias in the setup-constraints-physical-set values menu.

Skip.

[krishnanice]

Hi friends,
I'm trying to design a board using Allegro Cadence V15.2. In the layout section, am not able to increase the size of the via. When I've added the via, it's very small and I'm not able to make it bigger. I'm not sure if I can do the same. And, I've seen this option and couldn't understand this. When I go to

Setup -> vias -> Define B/B Via (or) Auto Define B/B Via

I couldnt understand what B/B Via means. However, my primary concern is making the Via bigger. Let me know if you have any suggestions. I appreciate your support.

[7Core7Core7Core]

krishnanice,
1) In the Allegro command prompt window, type "padeditdb"
2) Click on the via that you want to change then click the "edit" button on the options tab of the control window. This will launch the padstack editor
3) In the Padstack Editor, you can make the necessary changes to the drill and pad sizes and then choose File>update to design

Hope this was helpful

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[7Core7Core7Core]

B/B via = blind or buried via. These via structures are used for sequential lamination.