Scripts or commands to create the package stackup

you can always import and export the cross section technology file from the cross secton editor.

thanks for the reply. I see them in the CM in the via list,

do i need to define the TO & FROM anywhere else also ?

yes, you need to define which layer to which layer the padstack can be used.

yes I did define assign which layer to which layer  in the padstack editor and that can be seen in the CM vias list as well (START END) , where else do i need to define it and how ?

you can go to the padstack list on tools->padstack->modify desgin padstack

open the padstack by double clicking the padstack on the list and make sure all the pad diameter and layer names are correct. 

yes but  don't see the new vias in the tools->padstack->modify desgin padstack, i see it only in the CM via list .

Not sure what is the issue

yes but  don't see the new vias in the tools->padstack->modify desgin padstack, i see it only in the CM via list .

Not sure what is the issue

can you find the path to the padstack directory is correct by typing set in the command line?

you can see the path on padpath.

you need to make sure that the new padstack is located at the directory.

Yes the new padstack is in the directory where the design is.

Can you please let me know what does QMS stand for in the CM , there are 2 rows one is DEFAULT & the other is QMS under the VIA column in physical constraints.

i somtimes see qms on the designs from my customer. 

but i have never used it on my design  personally as i do not know what it is.

maybe your osat people put it into the osat database file.

you can create a new padstack from tools->padstack->modify desgin padstack by doing "save as."

after adding the top 4 layers of the laminate 1 design on the cross section editor on the laminate 2 design, you can import laminate1 design into the laminate 2 design.

you are very lucky as you need to deal with only 12 layers.

i have to deal with 21 layers (5 layers on the interposer plus 16 layers on the bottom substrate)