Create an additional layer for layout

Hi Sherif

You can try the following:
a. In CIW, go to "Tools->Technology File Manager"
b. A small form appears. Click on "Dump"
c. Select all techfile sections to be dumped and specify a filename (e.g. myTechLib.tf)
d. Press OK button

Now you have the ascii version of Virtuoso techfile. Assuming that the new layer is "M1->Va->newLay->Vb->M2",
e. In "techLayers" section, add "newLay" with an appropriate unused OA layer number

f. In "techLayerPurposePriorities", add the following:
(newLay drawing)
(newLay label)
(newLay pin)
(newLay net)

g. In "techDisplays", add the following:
(newLay drawing y0 t t t t t)
(newLay label y1 t t t t t)
(newLay pin y2 t t t t t)
(newLay net t t t t t)

h. In "layerRules(...functions(...)...)" section, add the following:
(Va "cut" 123)
(newLay "metal" 456)
(Vb "cut" 789)

Please replace 123, 456 and 789 with the appropriate mask numbers

i. In standardViaDefs, add something similar to this:
  ( M2_newLay         newLay   M2          ("Vb" 0.18 0.18 0.04)
     (1 1 (0.18 0.18))
     (0.015 0.04)    (0.03 0.05)    (0.0 0.0)    (0.0 0.0)    (0.0 0.0)
  )

  ( newLay_M1         M1  newLay          ("Va" 0.18 0.18 0.04)
     (1 1 (0.18 0.18))
     (0.015 0.04)    (0.03 0.05)    (0.0 0.0)    (0.0 0.0)    (0.0 0.0)
  )


j. Add newLay, Va and Vb to virtuosoDefaultSetup and virtuosoDefaultExtractorSetup constraint groups

k. Save your file and use "load" function in technology file manager form to replace your current techfile.

l. You should now see the new layers Va, newLay and Vb in the layer palette

m. If it is necessary, you should also add Va, newLay and Vb to the techLib.layermap gds mapping file found in the techLib directory

n. For a full update, you should of course also update the DRC/LVS decks and parasitic extraction techfile layer mapping


Best regards
Quek

Hi Sherif

You can try the following:
a. In CIW, go to "Tools->Technology File Manager"
b. A small form appears. Click on "Dump"
c. Select all techfile sections to be dumped and specify a filename (e.g. myTechLib.tf)
d. Press OK button

Now you have the ascii version of Virtuoso techfile. Assuming that the new layer is "M1->Va->newLay->Vb->M2",
e. In "techLayers" section, add "newLay" with an appropriate unused OA layer number

f. In "techLayerPurposePriorities", add the following:
(newLay drawing)
(newLay label)
(newLay pin)
(newLay net)

g. In "techDisplays", add the following:
(newLay drawing y0 t t t t t)
(newLay label y1 t t t t t)
(newLay pin y2 t t t t t)
(newLay net t t t t t)

h. In "layerRules(...functions(...)...)" section, add the following:
(Va "cut" 123)
(newLay "metal" 456)
(Vb "cut" 789)

Please replace 123, 456 and 789 with the appropriate mask numbers

i. In standardViaDefs, add something similar to this:
  ( M2_newLay         newLay   M2          ("Vb" 0.18 0.18 0.04)
     (1 1 (0.18 0.18))
     (0.015 0.04)    (0.03 0.05)    (0.0 0.0)    (0.0 0.0)    (0.0 0.0)
  )

  ( newLay_M1         M1  newLay          ("Va" 0.18 0.18 0.04)
     (1 1 (0.18 0.18))
     (0.015 0.04)    (0.03 0.05)    (0.0 0.0)    (0.0 0.0)    (0.0 0.0)
  )


j. Add newLay, Va and Vb to virtuosoDefaultSetup and virtuosoDefaultExtractorSetup constraint groups

k. Save your file and use "load" function in technology file manager form to replace your current techfile.

l. You should now see the new layers Va, newLay and Vb in the layer palette

m. If it is necessary, you should also add Va, newLay and Vb to the techLib.layermap gds mapping file found in the techLib directory

n. For a full update, you should of course also update the DRC/LVS decks and parasitic extraction techfile layer mapping


Best regards
Quek