I'm designing a footprint for J-Link 10-pin Needle Adapter. The pads need "no solder paste". I've looked around all configurations for the pad but didn't find a method to remove solder paste, so my question is how to design this kind of "no solder paste" pad in Altium efficiently?
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1\$\begingroup\$ Hey look. It's Tag-Connect. The reason you might not be able to find instructions is because it's trivial if you know what a solder mask is supposed to do. Just remove the solder mask in the padstack used for the pin. No solder mask = no hole in the soldermask = no solder applied. \$\endgroup\$– DKNguyenCommented Mar 18, 2021 at 3:58
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Edit the properties of the pad.
Set the Paste Mask Expansion to a large negative number (with absolute magnitude greater than the largest dimension of the pad).
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1\$\begingroup\$ +1 For a round pad slightly more than half the diameter of the pad. Too-large expansions can apparently cause hard-to-find clearance violations, at least they can with solder mask. \$\endgroup\$ Commented Mar 18, 2021 at 3:55