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How to stretch sub rectangles created with rodCreateRect() ..?

IC Layout

Hi, All, I have created an object which is composed of three layers (M2 being master, M1 and VIA1(as array) being sub rectangles in subrectArray section).
When I stretch this object except M1 layer both M2 and VIA1 are stretching correctly. It has been given that in the roduser.pdf inorder to stretch rodobjects correctly
we need to provide one argument i.e n_spaceY .. But I want the M1 layer to be stretched along with the M2 layer without any offset values..
I hope the problem is understandable and I have written it correctly..
Here is my code..............

procedure(box_box()
  bbox = enterBox()
          ll =  lowerLeft( bbox )
          ur = upperRight( bbox )
          llx = xCoord(ll)
          urx = xCoord(ur)
          X = urx-llx
          lly = yCoord( ll )
          ury = yCoord( ur )
          Y = ury - lly
          l1 = list(X Y bbox)
)
procedure(rect1()
box_1 = box_box()
rodCreateRect(
      ?layer    list("M2" "drawing")
      ?cvId     geGetEditCellView()
      ?bBox     nth(2 box_1)
      ?returnBoolean t
            ?subRectArray
              list(
                  list(
                      ?layer    list("M1" "drawing")
                      ?width    nth(0 box_1)
                      ?length   nth(1 box_1)
                      ?gap      "distribute"
                       )
                  list(
                      ?layer    list("VIA1" "drawing")
                      ?width    0.1
                      ?length   0.1
                      ?gap      "distribute"
                      ?spaceX   0.13
                      ?spaceY   0.13
                      ?lowerLeftOffsetX 0.07
                      ?lowerLeftOffsetY 0.07
                      ?upperRightOffsetX -0.07
                      ?upperRightOffsetY -0.07
                  )
              )
  );rect
)
rect1()

One more small question, is it possible to have properties "rows" & "columns" to the above object? If so, please someone guide me in achieving this ....
Thanks in advance..
Prabhakar. K -- Layout Engineer

Parents

  • Hi Prabhakar,

    Unfortunately you'd need an "enclosure sub-rectangle" to do this, and that's not currently supported by rodCreateRect() (rodCreatePath() has enclosure sub-paths, but rodCreateRect() does not have the equivalent concept). There's an enhancement CCR, 279161, asking for this. You should contact Cadence Customer Support to request this enhancement - and a duplicate enhancement request can be filed with R&D, helping to increase the priority.

    You can't put parameters on level-0 ROD objects. Instead, the way to do this is to put your code inside a pcDefinePCell() and define a pcell, with parameters rows & columns, or width and length. You could add stretch handles (see the ROD manual) and then you could have a stretchable pcell where the M1 and M2 stretch together, and you could fill in the rows and columns (etc).

    Best Regards,

    Andrew.

Reply

  • Hi Prabhakar,

    Unfortunately you'd need an "enclosure sub-rectangle" to do this, and that's not currently supported by rodCreateRect() (rodCreatePath() has enclosure sub-paths, but rodCreateRect() does not have the equivalent concept). There's an enhancement CCR, 279161, asking for this. You should contact Cadence Customer Support to request this enhancement - and a duplicate enhancement request can be filed with R&D, helping to increase the priority.

    You can't put parameters on level-0 ROD objects. Instead, the way to do this is to put your code inside a pcDefinePCell() and define a pcell, with parameters rows & columns, or width and length. You could add stretch handles (see the ROD manual) and then you could have a stretchable pcell where the M1 and M2 stretch together, and you could fill in the rows and columns (etc).

    Best Regards,

    Andrew.

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