Calibre to Assura rule conversio help

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sree_lakshmi

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Hi,

I have a rule in calibre that need to be converted into assura drc.
Please help me.

VIA1.R.2_FSG { @ When M1 or M2 width > 1.4um, more than 1 VIA1 is required.
@ if the metal has < 4 vias, vias spacing should be <= 0.71um,
@ or if the metal has >=4 vias, at least 4 vias spacing should be <= 1um
How can I detect via array in assura?

Regards,
Sree
 

You can find vias' spacing < any_limit in assura by

drc( VIA1.R.2_FSG sep < any_limit "VIA1.R.2_FSG spacing < any_limit" )

examples, if measures in units of [µm]:

drc( VIA1.R.2_FSG sep < 1.0 "VIA1.R.2_FSG spacing < 1.0" )
drc( VIA1.R.2_FSG sep < 0.71 "VIA1.R.2_FSG spacing < 0.71" )
 

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