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hacktastical
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You can use a pastemask checkerboard pattern to apply paste on the square, with the pattern covering your via in the middle. Then you shouldn't have a problem with wicking into the via as long as it's surrounded by soldermask (you will need to add this to your padstack.)

More here: https://www.pcblibraries.com/forum/ipc7093a-btc-qfn-solder-mask-defined-thermal-pad_topic2154.html

You can also cap the via, at some extra cost.

You can use a pastemask checkerboard pattern to apply paste on the square, with the pattern covering your via in the middle. Then you shouldn't have a problem with wicking into the via as long as it's surrounded by soldermask (you will need to add this to your padstack.)

You can also cap the via, at some extra cost.

You can use a pastemask checkerboard pattern to apply paste on the square, with the pattern covering your via in the middle. Then you shouldn't have a problem with wicking into the via as long as it's surrounded by soldermask (you will need to add this to your padstack.)

More here: https://www.pcblibraries.com/forum/ipc7093a-btc-qfn-solder-mask-defined-thermal-pad_topic2154.html

You can also cap the via, at some extra cost.

Source Link
hacktastical
  • 58.4k
  • 2
  • 54
  • 166

You can use a pastemask checkerboard pattern to apply paste on the square, with the pattern covering your via in the middle. Then you shouldn't have a problem with wicking into the via as long as it's surrounded by soldermask (you will need to add this to your padstack.)

You can also cap the via, at some extra cost.