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Fluid Guard Ring porting can't show correct layer

Andy Su

Hi! 

currently I tried use A foundry ported to B foundry,

and find abnormal from Fluid Guard Ring issue,

this Fluid Guard Ring just can't show the NPLUS layer 

I'm sure I recreate A and B foundry Fluid Guard Ring procedure(sorry I needed mark the foundry pdk name), 

is the foundry PDK cause or the my porting script mismatch?

or my create Fluid Guard Ring in CIW Technology File Manager procedure wrongs?

should I change any action?

the pic in layout ported from A to B foundry  like this show pcell Eval Failed


and zoom in like this, I know just the NPLUS can't thru the porting script(other layer ported and correct).

warning message as below 

I thought the layer lock before layer name data.
(in A foundry is "SN" layer, B foundry is "NPLUS" layer)
but another layer ported correct,
I'm confuse if my set wrong, should be all layer abnormal,
but just "SN" layer ported failed,
thanks tour reply!

Best Regards.

Andy Su

virtuoso version 

Loading techComp.cxt
*WARNING* (TECH-2000192): dbLayerOr: Invalid layer/purpose - ("SN" "drawing").
*WARNING* (TECH-2000192): dbLayerSize: Invalid layer/purpose - ("SN" "drawing").
Pcell evaluation for B/NW_RING/layout generated information. See layer/purpose "marker/error" shape with property "drcWhy" for description. You can get more details from file /tmp/_pcEvalq01489.
*WARNING* (DB-270001): Pcell evaluation for B/NW_RING/layout has the following error(s):
*WARNING* (DB-270002): ("error" 1 t nil ("*Error* Unable to create a device named 'NW_RING' because of (\"dbGetOverlaps\" 0 t nil (\"*Error* dbGetOverlaps: Invalid layer/purpose\" (\"SN\" \"drawing\"))). Redefine the device and try again.\n"))
*WARNING* (DB-270003): Error kept in "errorDesc" property of the label "pcellEvalFailed" on layer/purpose "marker/error" in the submaster.
*WARNING* (TECH-2000192): dbLayerOr: Invalid layer/purpose - ("SN" "drawing").
*WARNING* (TECH-2000192): dbLayerSize: Invalid layer/purpose - ("SN" "drawing").

  • Andrew Beckett

    It's almost certainly your porting script, but given that you've not shared that it's rather hard to know!

    You should check the parameters on the instance of the PCell:

    inst=car(geGetSelSet())
    foreach(mapcar prop inst~>prop list(prop~>name prop~>value))

    check whether any of those properties are referencing the original layers (my guess is that this might be the enclosingLayers parameter, but maybe there are others).

    Andrew

  • Andy Su
    in reply to Andrew Beckett

    Hi! Andrew, 
    I directly create  A and B foundry Fluid Guard Ring,
    and manual change library name from A fab to B fab,
    I have stupid question, how to use script like your mention as below?
    is in CIW interface?

    inst=car(geGetSelSet())
    foreach(mapcar prop inst~>prop list(prop~>name prop~>value))

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