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Finding all paths in a cell and increase width

Lynks

I never used SKILL before but I decided to put one together to migrate a cell library. 

The final piece I am missing is finding all paths on a particular metal layer (e.g. M1) whose width is less than 0.1 um. Once found, I'd like to set the width of all those paths to be 0.1 um. I tried searching a bit but the solutions I found were assuming the paths are selected already. In my case, I am iterating through all the cells in my library and opening the layout view. By the way, when I mention 'paths', they show up as 'path segments' in Layout XL (created by using the wire command Ctrl+Shift+W). I am not sure what the difference is between these two.

Any help on the above (assuming I already have the appropriate cv opened through dbOpenCellViewByType()) would be great.

Aside from that, this forum provided nice solutions for changing metal layers and replacing vias with new ones, and I was able to use them in my migration script. 

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  • Andrew Beckett

    thinPaths=setof(shape cv~>shapes member(shape~>objType '("path" "pathSeg")) && shape~>width<0.1)
    thinPaths~>width=0.1

    This will find all the shapes which are either path or pathSeg (the path segments you mention, which are the more modern way of handling connectivity) which are narrower than 0.1um. Then having found that list, it will set the width to 0.1um.

    Regards,

    Andrew.

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  • Andrew Beckett

    thinPaths=setof(shape cv~>shapes member(shape~>objType '("path" "pathSeg")) && shape~>width<0.1)
    thinPaths~>width=0.1

    This will find all the shapes which are either path or pathSeg (the path segments you mention, which are the more modern way of handling connectivity) which are narrower than 0.1um. Then having found that list, it will set the width to 0.1um.

    Regards,

    Andrew.

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