techGetPrStackVias

techGetPrStackVias(
d_techID
) 
=> l_stackVias / nil

Description

Returns a list of the via layer pairs defined as stackable in the specified technology database. ASCII technology file location: stackable in the foundry constraint group of specified technology file.

Arguments

d_techID

The database identifier of the technology database.

Value Returned

l_stackVias	A list of lists of the via layer pairs that are defined as stackable in the technology database. The list has the following syntax: list ( list ( lt_layer1 lt_layer2 ) … ) where, lt_layer1 is the first layer of a pair. lt_layer2 is the second layer of a pair.
nil	The technology database does not exist or no stackable via layers are defined in the foundry constraint group.

Example

techGetPrStackVias(tfID) 
=> (("via" "via2")
    ("via3" "via4")
   )

Returns the via layer pairs defined as stackable in the foundry constraint group of the technology database identified by tfID.

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