One little incident about those "tiny' marks...at
one time I did not see them and accused the vendor
of not testing. He then had to tell me that he had
to reflow the boards again as they did not look good
or something like that. This then clued me in that
the board had one more heat cycle that I did not need.
If it were not for the marks...then I would not know the
full story...the marks never caused me trouble..
just a little tidbit..
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