Via-in-Pad in PCB Design

MaxHeadRoom78 said:

I have always gone with copper which is usually the norm.

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ChrisP58 said:

Part of the question is what you're trying to accomplish.
If it's just to prevent solder thieving, then either choice is good.
If the component is a power device, and you need to carry heat away through the via, then copper is the better choice. Copper is usually more expensive.
But check with your PCB fabricator to see what their options are and what surcharge the two choices have. This will vary between vendors.

Of course, the better is to avoid vias in pads, unless specifically needed for heat transfer.

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Sophia Zeng said:

Thank you,the copper cost is higher than resin,so maybe it will be better.

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Nigel Goodwin said:

As already asked, what are you trying to achieve? - why do you want to block the vias?.

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schmitt trigger said:

If the pad with the via is either a ground or voltage supply pad, which connects the IC to either a ground or power plane, copper will ensure the lowest possible resistance.

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