Electronics Forum | Thu Sep 30 09:49:54 EDT 2004 | davef
Armin Habba could be considering a situation where: after they convert to no-lead they receive components with lead-bearing solderability protection from their component supplier. This could happen when: * Supplier has not converted to no-lead. * O
Electronics Forum | Fri Oct 01 16:12:00 EDT 2004 | palmerg
As long as they're good. Have you guys had any free "help" from so called engineers that turned into a costly waste of time (both in resources and line down). I have heard some real horror stories from former co-workers. I haven't heard this about th
Electronics Forum | Fri Feb 18 17:57:46 EST 2005 | Grant
Hi, The normal electronic components you purchase should have lead free variants. Also, all solder paste manufacturers have lead free solder pastes, so you just need to get the paste specification, and then re-profile your oven for it. Temps are hig
Electronics Forum | Fri Feb 25 11:37:17 EST 2005 | OverTheHill
I believe I read somewhere, that using leadfree solder in the wave, the dross will actually collect in the bottom of the solderpot. I can't remember where I read this (maybe a nightmarrish dream I had one night). If so, how do you remove it from the
Electronics Forum | Mon Feb 28 11:01:59 EST 2005 | jbrower
Hi Ing, Yes, slope of the conveyor is important. What type of assemblies are you having 50-75% fill on. Are they single sided? Plated through hole? Is this a recent problem? I'm more than happy to help, but I need more information. Best regards, J
Electronics Forum | Mon Mar 07 08:53:59 EST 2005 | Marc
some thoughts come to mind..... usually an air pocket as the solder heats up, or the surface is still solid and liquid under, pressure builds and then... check your heaters, make sure one (or more) is not bad, may be getting uneven heating. cover y
Electronics Forum | Tue Mar 22 03:23:10 EST 2005 | EA
Hi, We are trying to break a component ( SMT component ) off the printed circuit board and measure the quality of the solder joint. But, after breaking off and having the reading, we do not know whether the reading is it within the component specifi
Electronics Forum | Wed Apr 06 21:37:35 EDT 2005 | KEN
Are you saying you have solder balls (as in solder paste balls) at the lead tips (or land tip)? This means your thermal profile is not hot enough. why the sudden cahnge? I will bet the lead frame material was copper and is now alloy 42. sounds like
Electronics Forum | Thu Apr 14 18:51:19 EDT 2005 | KEN
What side is the short occuring on. Topside or bottom (solder) side? 2. Pitch of hole pattern = ? 3. Your x-ray may not have the resolution or DSP capable of detecting this defect. How does your profile look? Is this a true short or the result
Electronics Forum | Fri May 13 08:08:15 EDT 2005 | davef
George We're not sure about the application of powder flux for original poster to this thread, but a common application of powder flux is in brazing. This powder flux can be either metal bearing or just flux. As an aside: Soldering and brazing are
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