If I understand your question the fabricator delivered
30 'arrays' or 'pallets'  and X'd out (rejected) 1
piece per array (pallet).

Sometimes it happens.

Assuming this is an artwork defect (a trace is open or
shorted) the defect could likely be caused in the
photo imaging area where a film is scratched or debris
is shot onto the panel.

For a short run, this type of fallout is not atypical
and depending on the reason for the rejected boards
does not necessarily reflect poorly on the acceptable
boards.

Pete Menuez
Proto Circuit, Inc.





--- Jean-Francois Bissonnette
<[log in to unmask]> wrote:
> Hi all,
>
> We've received printed boards manufactured by sets
> of
> three (1X3).  On a batch of 30 plates (90 circuits),
> 10 did not pass their electrical tests so 11%.
>
> This is not a very complex circuit and I wonder if
> a rejection rate over 10% is normal.  Anyone can
> tell me what a normal rejection rate is in PCB
> manufacturing???
>
>
> Thanks in advance!
>
> JF
>
>
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