Electronics Forum | Thu Sep 07 16:09:31 EDT 2006 | 8-pak o' hot dogs
Old guy ran old fwux! New guy tookamyjwob runs new fwux! Too shiny! No guud!
Electronics Forum | Thu Oct 05 15:21:03 EDT 2006 | RusH
We are having significant issues with lead free parts on leaded assemblies. Particularly grainy and non-wetted solder joints. Does anyone have any solutions.
Electronics Forum | Thu Dec 07 10:23:36 EST 2006 | fredericksr
Has anyone experimented with the Amtech 4300 flux that claims to be a no-clean flux that is easily removed with water? If so, how did it go? Is this flux truly removable with water only while creating adequate solder joints? -OtheRuss
Electronics Forum | Mon Jan 29 09:47:50 EST 2007 | slthomas
I think your customer needs to look at this: http://www.necel.com/pb_free/en/crosssec.html
Electronics Forum | Mon Jan 29 10:57:16 EST 2007 | davef
Maybe your customer ment to say something like: reliability in actual use does to a large extent depend on the heel fillet and the 'bottom flat' wetting. If the foot length is
Electronics Forum | Mon Jan 29 14:03:35 EST 2007 | realchunks
Thanks Steve but I feel the customer may get scared by such technology as cross sections. Remember Cave Man Lawyer on Saturday Night Live? I have Cave Man Customer.
Electronics Forum | Mon Jan 29 15:05:32 EST 2007 | slthomas
Bring out your Mr. Peepers outfit (I suggest adding a top to reduce distractions) and a couple of apples and maybe you'll find a happy place in the middle.
Electronics Forum | Tue Jan 30 13:50:59 EST 2007 | slthomas
Your customer needs to be beaten sensible with a copy of IPC-610. Strapping it to a 2x4 may increase efficiency.
Electronics Forum | Wed Feb 07 18:40:39 EST 2007 | bill
What is an acceptable mismatch for smt components and pcb. We are having cracked solder joints from fatigue after repeated thermal cycling 25 deg. c to 125 deg.c.
Electronics Forum | Wed Feb 28 15:09:57 EST 2007 | Hussman
Some no-cleans will pool flux on the top of the solder joint which acts like an insulator. I normally do not paste "contact" pads. You can have your board house HASL them if you need the extra bump on the pad.
