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How to design the half (castellated) holes for PCB?

For the half holes,there are request for the copper layer/soldermask layer/drills layer.

The copper layer should have pads,the soldermask layer should have soldermask openings,the drill layer should have drills and the drills center is on the outline .The half holes diameter should be bigger than 0.6mm and the holes gap should be bigger than 0.55mm.


Pls find below picture for other correct design,thanks

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