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I'm at QRC stage now where I have encountered this extraction problem:
This is on 0.13um process (cmrf8sf) on Cadence 5.41
Hi AdamThis is the cause of the error:*ERROR*
Terminal sub on cellview (cmrf8sf devicepad auLvs) is not defined on
device (devicepad#20auLvs#20cmrf8sf) in the extraction rulesIn your extract.rul file, the "devicepad" cell has been defined with terminals "A B C". E.g.extractDevice("devicepad" _recLayer layer1("A") layer2("B") layer3("C") ... cellView("devicepad" "auLvs" "cmrf8sf") ... )But in auLvs view of the cell, the terminals are "A B sub". This is a common problem due to mismatch pdk/rule deck info. You can either contact the foundry and get a more updated rule deck (or pdk) or correct rule deck yourself.Best regardsQuek
In reply to Quek:
Could you please eleobrate more on what needs to be updated in the extract.rul file
I'm using extract32.rul and see this:
extractDevice( "devicepad" padOverDev padOverDev_top( "pad" ) flagMalformed namePrefix( "X" ) termOrder( " pad " ) spiceModel("devicepad") cellView("devicepad auLvs cmrf8sf") ) saveProperty( padOverDev "c" 1e-15 )
I'm sure that has nothing to do with extractDevice("devicepad" _recLayer layer1("A") layer2("B") layer3("C")
In reply to Adam86:
Hi AdamYou can modify the rule as:extractDevice( "devicepad" padOverDev padOverDev_top( "pad" )
yourSubLayer("sub") flagMalformed namePrefix( "X" ) termOrder( "pad sub" )
spiceModel("devicepad") cellView("devicepad auLvs cmrf8sf") ) saveProperty( padOverDev "c" 1e-15 )Please substitute "yourSubLayer" with the actual name of the substrate layer meant for devicepad cell. E.g. "psub", "bulk", etc. Just check the "B" pins of mos devices to know the layer name.In my example, "_recLayer" would correspond to your actual layer name "padOverDev". "layer1(A)" would correspond to "padOverDev_top(pad)".Best regardsQuek