Hi,

hole : plated trough hole PTH ? or plated trough via PTV ?

BTW in my opinion, in case of PTH, it will be no possible to accept under
Class-3. No chance to manage even as AABUS :-(

Regards

Gabriele

-----Messaggio originale-----
Da: TechNet [mailto:[log in to unmask]] Per conto di Phil Bavaro
Inviato: martedì 28 gennaio 2014 22.17
A: [log in to unmask]
Oggetto: [TN] IPC-6012 Class requirements

I have a question about the intent of IPC-6012 class requirements.

Let's say we have a contractual requirement to design and fabricate PWBs to
meet Class 3/A.

But during the design, we unknowingly document some attribute that does not
meet 3/A on the PWB drawing (which I call "3/A minus").  An example would be
copper thickness in the hole being less than .0015"

Then later I discover that 3/A requirements are more stringent than our
design is documented to have.

Is this a problem or does AABUS cover our error?

I would have thought that we are not in compliance with the letter of the
contract.

Any comments would be appreciated.
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