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the question about via under 0805
871 1 Dec 09.2019, 17:53:24

Just wondering, what are the thoughts on a (tented) via under a 0805? I know it is not preferred, frowned upon but... Why? If it's tented, it won't suck up solder, I know traces are run under chips so (and I do it all the time) but... Vias? Yay or Nay?

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A****min

Dec 12.2019, 18:58:59

Nay. In such small spaces, you are likely to see thicker solder mask (SM + trace), so your component will rock on that central point. This may create problems with automatic assembly.
Although on 0805 it probably does not matter that much.

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