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Accessing certain layer and get its ll and ur coordinates

Hello,

I have a pattern of transistor has DRC errors for some spacings between successive rows. These errors will be solved if i add rectangles for these layer. so instead of adding the same layer several times in the middle, i thought to add it only once with dimension of this layer in the whole pattern, like the NW layer specially they all share the same NW.

So what i thought about is:

1) Grouping the instances.

2) Accessing the needed layer.

3) Get its ll and ur coordinates.

4)Create rect with this layer and list of gotten points.

5)ungroup them again.

So i need a skill script does this sort of function.

Thanks

Regards,

Parents

Inas Mohammed over 8 years ago

Thanks for your reply.

I did something like the following part in the whole code for accessing a layer at the corner transistors of the patter & i highlighted the parts i added in red and the whole new procedure i added in yellow. But when i run the code it gives me and invalid point at the dbTransformPoint command line. Would you please tell me why i'm getting this error? when i tried the steps individually in the CIW it worked.

procedure(place_devices(cellView devLib devCell Length nfunit wfunit DUM1nf DUM1wf DUM2nf DUM2wf yPitch pattern)
let((params array nRows nCols Type dev name nf wf inst devCounts x y xPitch (x0 0.0) (y0 0.0) llInst urInst)

devCounts=makeTable('DEVCOUNT 0)
array = listToVector(foreach(mapcar row reverse(pattern) listToVector(parseString(row " "))))
nRows=length(pattern)
y=y0
for(row 0 nRows-1
x=x0
nCols=length(array[row])
for(col 0 nCols-1
dev=array[row][col]
;println(dev)
devCounts[dev]++
name=sprintf(nil "%s.%d" dev devCounts[dev])
Type=cond(
(eq('M getchar(array[row][col] 1)) 'device)
(zerop(row) && (zerop(col) || (col == nCols-1)) 'corner)
(zerop(col) && (zerop(row) || (row == nRows-1)) 'corner)
(zerop(row) || (row == nRows-1) 'topBottom)
(zerop(col) || (col == nCols-1) 'leftRight)
(t 'dummy)
)
caseq(Type
((device dummy)
nf=nfunit
wf=wfunit
)

(corner
nf=DUM1nf
wf=DUM2wf
)

(topBottom
nf=DUM2nf
wf=DUM2wf
)

(leftRight
nf=DUM1nf
wf=DUM1wf
)

(t error("type=%l\n" Type)
)
)

when(row==0 && col==0
llInst=inst
)
when(row==nRows-1 && col==nCols-1
urInst=inst
)

params = list(
list("l" "string" aelSuffixNotation(1u * Length))
list("w" "string" aelSuffixNotation(1u * wf))
list("fingers" "string" sprintf(nil "%d" nf))
list("polyContacts" "string" "True")
if(oddp(row)
then
list("routePolydir" "string" "Bottom")
else
list("routePolydir" "string" "Top")
)
) ; params

when(zerop(col)
; Device is on left edge. Add detached bodytie.
params = xcons(params
list("bodytie_type" "string" "Detached"))
)

when(col == nCols-1
; Device is on right edge. Add detached bodytie.
params = xcons(params
list("bodytie_typeR" "string" "Detached"))
)

inst=dbCreateParamInstByMasterName(cellView devLib devCell "layout" name x:y "R0" 1 params)
xPitch = (nf * Length) + (nf * 0.2)

;; TODO: Replace numbers with space/extension params
;; Or, use rodGetObj and/or M1 geometry of the
;; inst->master cellView to calculate the xPitch
;; of the instantiated device

;; Calculate x coordinate for next device
x = x + xPitch

)
y = y + yPitch
)

add_layer(geGetEditCellView() llInst urInst "NW" "drawing")
add_layer(geGetEditCellView() llInst urInst "PP" "drawing")
dbSave(geGetEditCellView())
geAskOverwriteMode(geGetEditCellView())
)) ; let ; procedure

procedure(add_layer(cellView llInst urInst Name purp)
let((lpp ll ur)
lpp = car(exists(x llInst->master->lpps (x->layerName == layerName && x->purpose == purpose)))
ll = car(car(lpp->shapes)->bBox)
ll = dbTransformPoint(ll llInst->transform)
lpp = car(exists(x urInst->master->lpps (x->layerName == layerName && x->purpose == purpose)))
ur = cadr(car(lpp->shapes)->bBox)
ur = dbTransformPoint(ur urInst->transform)
dbCreateRect(cellView list(layerName purpose) list(ll ur))
)) ; let ; procedure
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Inas Mohammed over 8 years ago

Thanks for your reply.

I did something like the following part in the whole code for accessing a layer at the corner transistors of the patter & i highlighted the parts i added in red and the whole new procedure i added in yellow. But when i run the code it gives me and invalid point at the dbTransformPoint command line. Would you please tell me why i'm getting this error? when i tried the steps individually in the CIW it worked.

procedure(place_devices(cellView devLib devCell Length nfunit wfunit DUM1nf DUM1wf DUM2nf DUM2wf yPitch pattern)
let((params array nRows nCols Type dev name nf wf inst devCounts x y xPitch (x0 0.0) (y0 0.0) llInst urInst)

devCounts=makeTable('DEVCOUNT 0)
array = listToVector(foreach(mapcar row reverse(pattern) listToVector(parseString(row " "))))
nRows=length(pattern)
y=y0
for(row 0 nRows-1
x=x0
nCols=length(array[row])
for(col 0 nCols-1
dev=array[row][col]
;println(dev)
devCounts[dev]++
name=sprintf(nil "%s.%d" dev devCounts[dev])
Type=cond(
(eq('M getchar(array[row][col] 1)) 'device)
(zerop(row) && (zerop(col) || (col == nCols-1)) 'corner)
(zerop(col) && (zerop(row) || (row == nRows-1)) 'corner)
(zerop(row) || (row == nRows-1) 'topBottom)
(zerop(col) || (col == nCols-1) 'leftRight)
(t 'dummy)
)
caseq(Type
((device dummy)
nf=nfunit
wf=wfunit
)

(corner
nf=DUM1nf
wf=DUM2wf
)

(topBottom
nf=DUM2nf
wf=DUM2wf
)

(leftRight
nf=DUM1nf
wf=DUM1wf
)

(t error("type=%l\n" Type)
)
)

when(row==0 && col==0
llInst=inst
)
when(row==nRows-1 && col==nCols-1
urInst=inst
)

params = list(
list("l" "string" aelSuffixNotation(1u * Length))
list("w" "string" aelSuffixNotation(1u * wf))
list("fingers" "string" sprintf(nil "%d" nf))
list("polyContacts" "string" "True")
if(oddp(row)
then
list("routePolydir" "string" "Bottom")
else
list("routePolydir" "string" "Top")
)
) ; params

when(zerop(col)
; Device is on left edge. Add detached bodytie.
params = xcons(params
list("bodytie_type" "string" "Detached"))
)

when(col == nCols-1
; Device is on right edge. Add detached bodytie.
params = xcons(params
list("bodytie_typeR" "string" "Detached"))
)

inst=dbCreateParamInstByMasterName(cellView devLib devCell "layout" name x:y "R0" 1 params)
xPitch = (nf * Length) + (nf * 0.2)

;; TODO: Replace numbers with space/extension params
;; Or, use rodGetObj and/or M1 geometry of the
;; inst->master cellView to calculate the xPitch
;; of the instantiated device

;; Calculate x coordinate for next device
x = x + xPitch

)
y = y + yPitch
)

add_layer(geGetEditCellView() llInst urInst "NW" "drawing")
add_layer(geGetEditCellView() llInst urInst "PP" "drawing")
dbSave(geGetEditCellView())
geAskOverwriteMode(geGetEditCellView())
)) ; let ; procedure

procedure(add_layer(cellView llInst urInst Name purp)
let((lpp ll ur)
lpp = car(exists(x llInst->master->lpps (x->layerName == layerName && x->purpose == purpose)))
ll = car(car(lpp->shapes)->bBox)
ll = dbTransformPoint(ll llInst->transform)
lpp = car(exists(x urInst->master->lpps (x->layerName == layerName && x->purpose == purpose)))
ur = cadr(car(lpp->shapes)->bBox)
ur = dbTransformPoint(ur urInst->transform)
dbCreateRect(cellView list(layerName purpose) list(ll ur))
)) ; let ; procedure
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