Neon John wrote:

On Tue, 11 Aug 2015 10:16:31 -0500, Ignoramus29244
wrote:

``...Since the robots came to the plant the defect rate of products
has dropped from over 25 per cent to less than 5 per cent...''

Thus defines the term "chinese junk"!!! We use a US box builder to
actually manufacture our products. The after-burn-in defect rate
they're held to is 0.1%. They're at least an order of magnitude
better.

I had someone who represented a chines OEM that bragged they had a
..1% failure rate on their passives. Considering there were 1800 passives
in one of our products the chance of anything working right out of
production was too low. So what if they cost less than half of the
approved vendors, when the troubleshooting and rework costs would cost
much more than the passives?

Even well known vendors would ship shoddy parts. I removed Beckman
from our AVL because they refused to admit they were shipping us
defective washable trimpots. Six months later, we received a letter that
blamed the defective parts on defective o-rings. That was after in house
testing revealed a failure rate approaching 25%. Boards would be tested
and calibrated, but by the time the systems were complete, the water and
approved board cleaning solvent had mostly baked out. That require a
second, third or even more rounds of calibration. We switched to
Bourns, with a failure rate so low that we didn't even track it.