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  3. Find the overlapping shapes between three layers

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Find the overlapping shapes between three layers

Anmoljot
Anmoljot over 1 year ago

Hello,

We have a requirement as shared below:

  • Finding the overlapping shapes between multiple layers
  • Updating an existing layer by adding the shapes found in the previous step.

Kindly refer to the below image for the further description of requirement shared below:

Figures 1, 2 and 3 show the shapes for Layer A, B and C respectively and the Outline layer shape.

The requirement is to do an equivalent of "AND" operation to get just the shapes that overlap between the three layers.

The second part is to add these shapes to the OUTLINE layer as shown in the figure 4.

The smaller shapes in the middle region of fig. 1, 2 and 3 are not overlapping and hence not appearing in the output figure 4.

Please help to provide Skill commands which can meet the requirement.

Kindly let me know if any further details are required.

Thanks,

Anmol

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  • Anmoljot
    Anmoljot over 1 year ago

    Kindly note I have referred to the below case.

    Program for finding the bBox of the intersection (or AND operator) of two layers - Custom IC SKILL - Cadence Technology Forums - Cadence Community

    Referring to this, I tried the following ABE commands, but the output is not coming as expected.

    abeInit(cv)
    m0=abeLayerFromCellView("Metal1")
    m1=abeLayerFromCellView("Metal2")
    intersections=abeNewLayer()
    abeLayerAnd(m0 m1 intersections)
     

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  • Anmoljot
    Anmoljot over 1 year ago

    Kindly note I have referred to the below case.

    Program for finding the bBox of the intersection (or AND operator) of two layers - Custom IC SKILL - Cadence Technology Forums - Cadence Community

    Referring to this, I tried the following ABE commands, but the output is not coming as expected.

    abeInit(cv)
    m0=abeLayerFromCellView("Metal1")
    m1=abeLayerFromCellView("Metal2")
    intersections=abeNewLayer()
    abeLayerAnd(m0 m1 intersections)
     

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  • AurelBuche
    AurelBuche over 1 year ago in reply to Anmoljot

    You are missing the last functions I described in my previous answer : abeLayerToCellView, abeLayerToHilightSet and abeDone

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