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Ideas/Help Needed for Padstack Edit

Hi Guys I give up, I tried for a while and now I don’t know what to do This is what I want to do in Skill 1. Load a Padstack 2. Edit the pad-definition on only selected layers, either make them null or assign a new value I tried the following methods

Method 1:

a. Get All padstacks b. Foreach padstack and foreach pad-definition make a copy of pad definition a. Using make_axlPadStackPadb. Modify the values if neededc. Create a New Padstack Replace the old padstack with new padstack

Problem:

a. Not able to create the pad-definition structure, error prone

Method 2:

a. Foreach padstack I use axlDBCopyPadstack and trim it by specifying the start/end layerp1=axlLoadPadstack("CIR60D40")p2 = axlDBCopyPadstack(p1, '("CONDUCTOR/RDL_SEC" "CONDUCTOR/TOP_PRM"), t)axlPadstackToDisk(p2->name)

Problem:

a. This doesn’t seem to work, the resulting padstack still has all the pad definition on the other layersb. Trimming doesn’t seems to work

Method 3:

a. Use Allegro Scripting all the way

Problem:

a. Error Prone and there is no way to control occasional out of blue pop-ups I am out of ideas and would appreciate any kind of help on this issue Is there is any way I can load a padstack and go to a certain padstack definition on a given layer and change its vaule

regards

Vramanan

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eDave over 14 years ago

Hi Vramanan,
I believe that method 1 is the only one that will work well - and it does work.
You need to define the pads for every layer using make_axlPadStackPad and then create the padStack using axlDBCreatePadStack before using axlPadstackToDisk.
Works for me.
Dave
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eDave over 14 years ago

Hi Vramanan,
I believe that method 1 is the only one that will work well - and it does work.
You need to define the pads for every layer using make_axlPadStackPad and then create the padStack using axlDBCreatePadStack before using axlPadstackToDisk.
Works for me.
Dave
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