Electronics Forum | Tue Dec 14 03:45:31 EST 2004 | rlackey
I don't think that the ones I encountered were "fake", I think that they were cheap copies - ie. actually meant to work, not just to part someone with their cash - engineered to a price (just a very low one!). It does seem a bit strange to go to the
Electronics Forum | Tue Dec 14 08:26:10 EST 2004 | davef
Try: * Trade journals [ie, SMT Magazine, Circuits Assembly, etc], for instance: http://circuitsassembly.com/pdf/0203/0203heller.pdf * Professional organizations, like SMTA, for instance: http://www.smta.org/knowledge/journal_detail.cfm?JOURNAL_ID=86
Electronics Forum | Tue Dec 14 07:32:57 EST 2004 | davef
On contaminated assemblies: While you isolated part of your dendritic growth to contaminated boards, could it be that you have a similar problem with other components, rather than your flux? Is this flux new? Have you had similar problems with thi
Electronics Forum | Thu Dec 16 09:59:47 EST 2004 | saragorcos
Hi there - unfortunately, there are no good cleanliness specs available mainly because clealiness requirements are case sensitive - you should talk to Terry Munson at 765-457-8095 - he can definitely give you advice on Ion Chromatography, SIR, ROSE t
Electronics Forum | Fri Dec 31 10:22:54 EST 2004 | gpaelmo
I agree that something has to be done with the lead waste but I believe that a recycling program is a better alternative to lead-free. Isn't silver more toxic? How about the venting of alternate alloy fumes, let alone the effects on operators. I say
Electronics Forum | Sun Jan 09 19:34:06 EST 2005 | Bob R.
You're right that us in the automotive market are exempt, but that just delays the inevitable by two or three years. Our customers, especially Japanese, are pushing us to provide Pb free products in the '08/'09 timeframe so that the end customers ge
Electronics Forum | Mon Jan 10 18:16:32 EST 2005 | ricardof
Greetings from Mexico I can see several good opinions about the "real" need to chnage to Lead-Free processes, but at the end and trying to be real, is there any good path we could follow to stop this process? I can see a lot of work, investment in eq
Electronics Forum | Wed Dec 15 19:31:26 EST 2004 | Thomas Denison
We have a ceramic BGA that the component supplier has misaligned the spheres in the fixture so they slant .007" out of alignment from the substrate pads. When the devices are tested at the component manufacturer this alignment issue also causes the
Electronics Forum | Thu Dec 16 16:28:51 EST 2004 | Indy
Hi, We are using Sn/3.0Ag/0.5Cu solder paste on Pd/Ag pad metallization in one of our application. Could someone provide me information on the following: 1. How bad is the Leaching of Ag in SAC alloy and how it can be mitigated. 2. During reflow so
Electronics Forum | Thu Dec 16 18:36:01 EST 2004 | mattkehoe
We use water soluble solder paste. When it gets a little dried out, can we add something to rejuvenate it? Liquid flux? We do not place components, just print and reflow the solderpaste so solderballs, spattering, and other issues like those are of
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