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qnngroup / qnngds

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Pads in adjacent cells too close when densely packed #104

Closed emmakbat closed 3 weeks ago

emmakbat commented 4 weeks ago

When making a layout with a lot of devices, the pads end up awfully close together: image

This wasn't an issue in previous layouts because they were sparser and the pads in adjacent cells ended up being offset from each other in the x-direction. When the x-locations are the same, though, there is simply not enough room. When wirebonding a layout like this there's a high risk of accidentally shorting an adjacent device's pads. It's probably fine, but it would stress me out.

I think there should be a Design-level option for building in padding between dies, not only for the edges of the chip.

emmakbat commented 4 weeks ago

Alternatively, could be solved with a cell-level parameter that moves pads away from the edges of cells.