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Fanout question

Hi, I have a BGA which has been fanout at board level not library level, all the vias are the same and go through Top to Bottom. I want to replace some of those by blind vias, which I have already defined, but I can't select the vias by going through Edit->Change. Does anybody know how to accomplish this? Thank's Regards.

Originally posted in cdnusers.org by luissito

archive over 18 years ago

Tools -> Padstack -> Replace

Ensure that "single via replace mode" is checked

KP

Originally posted in cdnusers.org by kp
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archive over 18 years ago

Thank's for quick reply, as you can see in the attached pic "Single via replace" is not enabled. What can be done? For example what should I do to replace the via showed in the image? Thank's Regards

Originally posted in cdnusers.org by luissito
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archive over 18 years ago

You need to select a via before the single via replace mode is enabled.

Randy

Originally posted in cdnusers.org by rb
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archive over 18 years ago

Ok, now it works.
Thank's both

Originally posted in cdnusers.org by luissito
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archive over 18 years ago

There is a SKILL Routine available that allows you to replace via padstacks by window which works really well. You may want to give it a try.

It is available on Cadence Sourcelink and here is the URL link to the SKILL Routine:

http://sourcelink.cadence.com/docs/files/SKILL/Allegro_SKILL_Code/replace_via.il

Hope this helps,
Mike Catrambone
UTStarcom, Inc.

Originally posted in cdnusers.org by mcatramb91
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