it has happened to me twice
2 different shops
they charged for test setup, testing, but there were short all over some
of them and they were only double sided

Dennis Saputelli

Jon Elson wrote:
> 
> Bagotronix Tech Support wrote:
> 
> > With a board that complex, your board vendor had better actually be doing
> > electrical test, instead of just charging for it and not doing it...
> 
> What?  This is endemic in the industry?  I've had to can several vendors
> for pulling this stunt.  But, when they get caught by me, with my (in
> comparison) quite modest boards, there's no doubt what is going on, because
> the boards come back with 50% failure rate.  IE. 50% of the boards have at
> least
> one internal short or open.  I usually get the test report from Advanced
> Circuits,
> so I know what their yield is on multilayer boards.  And, it is somewhere
> between
> 50 and 75% on most runs.  The 2-sided usually come back at 90% or better
> passing.
> 
> So, it is real hard for me to believe that many fabricators pull these
> stunts of
> pretending to do electrical test as a routine matter.  I think they'd get
> caught
> WAY too often.
> 
> Jon

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