Electronics Forum | Fri Jul 23 04:27:59 EDT 2004 | greg york
Many trials conducted so far from single sided to Mixed technology dual wave with our LFB227/S 0.3Ag silver Lead free. Results are excellent, some say better than 63/37. One continueing problem though is the age old area of undercured resist and runn
Electronics Forum | Tue Sep 07 23:57:05 EDT 2004 | KEN
If you want someone to do it for you, hire a consultant. IF you think its going to be handed to you over the web, get real. I don't think coke Inc would be where it is today if it published the formula to coke. For that matter, any CM or OEM would
Electronics Forum | Fri Sep 10 17:32:59 EDT 2004 | Yngwie
We have recently faced lifted lead problem that happened on our 20 mil pitch QFP. We have infact pushed it back to the incoming quality, but still I have a few questions to bring up : 1) what is the typical coplanarity tolerance that ICs' manufactur
Electronics Forum | Thu Sep 23 13:14:22 EDT 2004 | Bob R.
We're just getting started in lead free, but the solder balling and poor wetting sounds like what we saw in some early experiments where we were investigating whether we needed nitrogen. Without nitrogen inerting we got just the kind of things you'v
Electronics Forum | Wed Oct 06 03:18:01 EDT 2004 | Joseph
Dear all, Recently our customer complaint that some components being came off from the pcba after dropping test.But the curious is, the leads show visible solder fillet covering more than 75% of termination area on pad, which is acceptable as per IP
Electronics Forum | Wed Nov 03 19:29:18 EST 2004 | hyabro
One of my customer had an oven made of galvanized metal. when he rised the temperature for lead free application the zinc from the alloy(blower turbine and housing,...) was melted and was removed .I offered to my customer an used oven tornado made by
Electronics Forum | Mon Nov 08 12:12:21 EST 2004 | davef
Your customer's cost will increase. Consider: * The majority of no-lead components have matte tin solderability protection. Bright tin, as mentioned by an earlier poster, has had reliability issues. Many component suppliers have documented their re
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 | 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 | 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
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