Re: Swatch kills RoHS

Hello John,


Reminds me of the "pressfit" days. A rep came and said that this new
solder-less pressfit method would guarantee 99.95% good contacts. Our
motherboard had about 6000 contacts. So when he did his spiel in front
of the big brass I raised my hand and asked him: "That would mean that
three contacts are statistically open. Can you tell me which ones that
would be?" After that you could have heard a pin drop in that meeting room.

I'd nearly forgotten about compliant pin technology. Insertion forces seemed
scary.

We did a couple hundred big ugly 25-slot CAMAC crates with AMP
pressfit card-edge connectors, and I can't recall having any problems.


Can't say that from what I've seen. Once I had a hard time convincing a client to solder their motherboards again. Luckily an incident happened that did it: Pulled a large board with three DIN connectors in back. It did what dentists might call an "involuntary extraction": One of the motherboard DIN counterparts came out with it. The client went back to soldering and most MB field failures after rough transport flights and so on went away.

--
Regards, Joerg

http://www.analogconsultants.com
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