Electronics Forum | Wed Nov 26 09:16:59 EST 2008 | barryg
Hello everyone, after a short layoff I am glad to be back. I have a question. I have a button (snap button) that is being soldered to a strip of sac coated copper. We are questioning the joint strength of this from our vendor as we see these popping
Electronics Forum | Fri Sep 02 08:46:06 EDT 2005 | davef
Just to be clear, Pete C is referring to the August 2005 SMT Magazine.
Electronics Forum | Fri Sep 02 09:43:08 EDT 2005 | pjc
Thanks Dave. Its September already !!
Electronics Forum | Wed Sep 07 10:51:04 EDT 2005 | Slaine
an X-ray fluroscope XRF will tell u if there is any lead in it in seconds, without damaging it.
Electronics Forum | Wed Nov 26 11:19:58 EST 2008 | vladig
I don't think you can find any specs on that. As long as a solder joint can not be broken by virtually "blowing over it" any reading on the UTS, or shear strength can be very confusing. You can specify, though that the assembly (joint) should withsta
Electronics Forum | Fri Sep 02 06:47:17 EDT 2005 | dougs
Is there a standard that we should aim for in respect to the strenght of the solder on SMT leads? We have a customer who are testing our product by pulling leads off of pads then returning them.
Electronics Forum | Fri Sep 02 08:52:36 EDT 2005 | davef
Dougs: What is the purpose of this test? Lately, we have had a lot of boards that do not withstand the Drive-Over The Board With A UPS Truck Test. We wonder is the is some relation between our test failures and your customer's.
Electronics Forum | Fri Sep 02 08:58:35 EDT 2005 | Rob
We used to see that a lot with securicor before DHL bought them. They used to tape up the boxes again with brown tape & pretend nothing had happened. We even had tire marks on one box.
Electronics Forum | Fri Sep 02 10:10:54 EDT 2005 | Mity-C
We had a customer who came in to discuss a solder adheasion problem on some sub-assemblies we were building for them. When they arrived, they put a sub assembly in a vise and hit it with a hammer. I was speechless to say the least...... C
Electronics Forum | Fri Sep 02 10:27:49 EDT 2005 | Rob
One of our customers picked up an assembly, dropped it on a concrete floor, then kicked it down the corridor. Broke his toe on the steel enclosure, & suffice to say never tried it again. Nothing like decent, documented & controlled scientific testi
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