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Manufacturing grid/ Routing grid

Cristina Ibane

Hi!

Is there any way to customize the values for these 2 grids? I understand they are currently read from the tech file and I do not want to touch that.

I have found some answers related to creating a new constraints group and defining the new grid, but I do not find any process rule that would allow me to do that.

Just to be clear: in my environment, package metal needs to be routed with a different grid from the rest. If I use paths to do this, my 45degrees angles won't respect the bigger grid. The only solution I found is SKILL snapping them to grid, but only after converting them into polygons, which is not exactly what I would like to do each and every time on each and every package.

Any input is highly appreciated! Thanks!

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  • Andrew Beckett

    Paths inherently have their outside vertices off grid if you have 45-degree segments, because they have constant width. You should use pathSegs (via the Create Wire command) as these are designed to keep the edge vertices (and centre vertices) on the manufacturing grid.

    Andrew.

Reply
  • Andrew Beckett

    Paths inherently have their outside vertices off grid if you have 45-degree segments, because they have constant width. You should use pathSegs (via the Create Wire command) as these are designed to keep the edge vertices (and centre vertices) on the manufacturing grid.

    Andrew.

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