Migration from 7ML to 9ML

Hello
I want to write a skill script that allows the migration from 7ML to
9ML for a layout cellview. For that I have to duplicate the metal 5 to
M6 and M7 and change the M6 and M7 to M8 et M9.
Could you please help me? is there a function in skill that allows to
create a metal as a copy of another metal in a cell?
Thanks.

 

Hi

you could use dbLayerOr which will copy the layer (OR it with
nothing) . Also you may need to resize it depening on the DRC rules of
the higher layers - dbLayerSize will up size. The bit of code below
will do some basics - you'll need to work out what to do with vias
pins etc.

Also you'll need to run it on every block to replicate in that block

LPP=list("M7" "drawing")
cv=geGetEditCellView()
; get a list of objects on layer M7
shlist = setof( shape cv~>shapes ((shape~>objType == "polygon" ||
shape~>objType == "rect" || shape~>objType == "path") && (car(LPP) ==
car(shape~>lpp))))
foreach( sh shlist
dbLayerOr(cv "M9" list(sh)) ; copy layer
;dbDeleteObject(sh) ; delete if necessary
)

cheers
G

 

Hi G,

I'm just catching up ...
I went quickly through your code and I have few doubts:

This catches most of the common used figures indeed. But you are still
missing important things like labels and other less used figures like
ellipse, donut ... (A complete list of the DFII figures is given in
the DFII Skill manual).

You don't need the foreach loop in the above code, you could just say:
dbLayerOr(cv "M9" shlist)
dbLayerOr shall take all the shapes in the list without explicitely
looping with foreach.

Anyway, this is my attempt (which somebody else could enhance as
well ).
I have used dbCopyFig myself. This fuction grabs all the types of
figures, including the labels. dbLayerOr does not catch the labels as
far I rememeber.
;
procedure( rkCopyLayer(libName cellName viewName sourceLayer destLayer
"ttttt")
let((cv sourceLayerFigs destFig)
cv=dbOpenCellViewByType(libName cellName viewName nil "a")
sourceLayerFigs=setof(x cv~>shapes x~>layerName==sourceLayer)
foreach(fig sourceLayerFigs
destFig = dbCopyFig(fig cv list(0:0 "R0" 1.0))
destFig~>layerName=destLayer
; dbDeleteObject(fig) if needed. Could be made as a procedure
param.
)
dbSave(cv)
dbClose(cv)
t
)
)
;
Example of Run:
rkCopyLayer("myLib" "myCell" "layout" "M7" "M8")
rkCopyLayer("myLib" "myCell" "layout" "M7" "M9")

The second step for you is to look after the devices, vias and other
constrains as G advices.

Cheers,
Riad,

 

Hi G,

I'm just catching up ...
I went quickly through your code and I have few doubts:

This catches most of the common used figures indeed. But you are still
missing important things like labels and other less used figures like
ellipse, donut ... (A complete list of the DFII figures is given in
the DFII Skill manual).

You don't need the forach loop in the above code, you could just say:
dbLayerOr(cv "M9" shlist)
dbLayerOr shall take all the shapes in the list without explicitely
looping with foreach.

Anyway, this is my attempt.
I have used dbCopyFig myself. This fuction grabs all the types of
figures, including the labels. dbLayerOr does not catch the labels as
far I rememeber.
;
procedure( rkCopyLayer(libName cellName viewName sourceLayer destLayer
"ttttt")
let((cv sourceLayerFigs destFig)
cv=dbOpenCellViewByType(libName cellName viewName nil "a")
sourceLayerFigs=setof(x cv~>shapes x~>layerName==sourceLayer)
foreach(fig sourceLayerFigs
destFig = dbCopyFig(fig cv list(0:0 "R0" 1.0))
destFig~>layerName=destLayer
; dbDeleteObject(fig) if needed. Could be made as a procedure
param.
)
dbSave(cv)
dbClose(cv)
t
)
)
;
Example of Run:
rkCopyLayer("myLib" "myCell" "layout" "M7" "M8")
rkCopyLayer("myLib" "myCell" "layout" "M7" "M9")

The second step for you is to look after the devices, vias and other
constrains as G advices.
Regards,
Riad,

 

Hi Riad,

I always have doubts writting skill!
your observations are correct - I was re-using a bit of code I'd
written to do something else - so not optimal, after I posted I
noticed the foreach wasn't necessary

cheers
G

 

Hi G,

No worries, that's the benefit of having such a great place to share
ideas and experiences.
And BTW, I wouldn't show you my first skill codes, you would have a
good laugh about it

Cheers,
Riad.

 

Hello
Thank you for your suggestions.
I have used the dbCopyFig function and it works very well.

Cheers,
Manel.