While agreeing with Rudy, I must say I go into many design and assembly
operations and first say something stupid like "oh, you're using ENIG or
HASL." Actually, I just get a little annoyed at these choices.

After being greeted, and having my pay check witheld, with something like
what's wrong with that, I say something more stupid like black pad is going
to get you or you'll have solderability problems. This all passes and my
check cashes, then the boards don't solder and I get to stay longer to get
more checks for solving problems that shouldn't have happened in the first
place. Anyway, way too many designers design in ENIG and HASL and way too
many asselblers pay the price. The whole thing is like some tribal custom
that's really hard to change.

Started using silver back in '96. Liked it then and like it now. Still like
OSP/OCC. Never used much tin but it seems fine according to all I've heard
on this forum and from others in industry.

What matters is what solders. That's the bottom line though it's all a
compromise in this business - from design through test and customer acceptance.

Earl

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