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Accessing certain layer and get its ll and ur coordinates

Inas Mohammed

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

    ok i tried the leSearchHierarchy for a single transistor and it gives me 2 bBox values for the 2 PP layers used.

    But when i applied this to a pattern of transistor it gives me many bBox values but all are for the 1st transistor in the lower left corner.

    what i want is to get the most ll and most ur PP bBox for the whole boundary to be able to draw a PP rectangle to solve the in between spacing DRC error.

    Can you help me achieving this goal in a pattern shown blow know that i need the size of the PP rectangle changes with changing the pattern size?

    So i need a script the gets the bBox of the PP layer then draw a rectangle of this information a pattern

    Hope you get my point.

    Thanks

Reply
  • Inas Mohammed

    ok i tried the leSearchHierarchy for a single transistor and it gives me 2 bBox values for the 2 PP layers used.

    But when i applied this to a pattern of transistor it gives me many bBox values but all are for the 1st transistor in the lower left corner.

    what i want is to get the most ll and most ur PP bBox for the whole boundary to be able to draw a PP rectangle to solve the in between spacing DRC error.

    Can you help me achieving this goal in a pattern shown blow know that i need the size of the PP rectangle changes with changing the pattern size?

    So i need a script the gets the bBox of the PP layer then draw a rectangle of this information a pattern

    Hope you get my point.

    Thanks

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