Bottom Pad and Paste Mask Opening(s)

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   If a bottom pad of a QFN for example, has multiple paste mask openings generated from PCB Libraries, do these openings need to have rounded corners, or do the fabricators handle the issue with 90 degree corners on stencil openings automatically?
I know the bottom pad itself can have rounded corners.

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pcbfreedomcad Members Profile Send Private Message Find Members Posts Add to Buddy List Active User Joined: 09 Jan 2024 Status: Offline Points: 15	Post Options Post Reply Quote pcbfreedomcad Report Post Thanks(0) Quote Reply Topic: Bottom Pad and Paste Mask Opening(s) Posted: 2 hours 5 minutes ago at 3:19am
	If a bottom pad of a QFN for example, has multiple paste mask openings generated from PCB Libraries, do these openings need to have rounded corners, or do the fabricators handle the issue with 90 degree corners on stencil openings automatically? I know the bottom pad itself can have rounded corners.