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T0 = Schematic Pin | Not used in a PCB |
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T1 = Oval thru Pad | Copper on both the top and the bottom, drill hole, solder mask relief, and rounded corners. |
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T2 = Rectangular thru Pad | Copper on both the top and the bottom, drill hole, solder mask relief, and square corners. |
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T3 = Round thru Via | Copper on both the top and the bottom, drill hole, no solder mask relief, and rounded corners. |
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S0 = Padstack special | Data on only the assigned layer, drill hole, rounded corners. |
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S1 = Oval SMT Pad | Copper on only the assigned layer, no drill hole, solder mask relief, solder paste relief, and rounded corners. |
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S2 = Rectangular SMT Pad | Copper on only the assigned layer, no drill hole, solder mask relief, solder paste relief, and square corners. |
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S3 = Schematic Dot | Not used in a PCB. |