Electronics Forum: transition lead-free (Page 2 of 5)

Lead free profile

Electronics Forum | Thu Jan 27 15:13:26 EST 2005 | jbrower

Hi Tom, Thanks for the compliment. I've been researching and planning for the time that my company would go lead free since late in 1999. I hear you there, how do we know that the component is lead free. Baring a leap of faith with your vendors, I

Tin Lead BGAs in leadfree paste ( pb-free paste )

Electronics Forum | Mon Mar 06 22:30:12 EST 2006 | mainenetservices

We have a customer transitioning slowly to lead free due to necessity rather than a need to comply i.e. some of their BGAs can only be purchased Pb free only. So for this we would want to produce them a leadfree soldered PCB (not necessarly RoHS comp

Oop's Pb BGA's in a RoHS process?

Electronics Forum | Mon Jun 19 04:42:37 EDT 2006 | Loco

There are plenty of studies on this subject. If the BGA can handle the extra temperature and they are soldered on a leadfree profile, the general result seems to be a better reliability than Pb :) Just out of the top of my head, there was a link to

Lead-free solder alloy: SN100C from AIM solder

Electronics Forum | Thu Jul 28 09:47:06 EDT 2005 | fctassembly

Hello Carl, The main reason there is little information on lead free soldering to ENIG is because most of the lead free soldering to date has been Japanese consumer products. To keep costs down, the major surface coating used has been OSP copper. It

RELOW PROFILE FOR MIXED LEAD FREE AND STANDARD DEVICES

Electronics Forum | Thu Sep 19 11:02:17 EDT 2013 | hegemon

If there is only a single lead free BGA on the BOM, I would suggest a "hybrid" profile. Use regular solderpaste (SN63/pb37) and peak your temperature at around 225C. Allow a bit longer TAL to let the two solders co-mingle at the BGA joints. You are

Lead free compatibility

Electronics Forum | Mon Dec 05 17:53:04 EST 2005 | KEN

I hate to sound like a broken record but the industry has been placing lead free through-hole parts forever. Now all of a sudden its a problem??? Gold finish, silver, silver paladium, alloy 42, even pure copper. Reliability will be a function of t

Lead free SAC solder paste on Sn63 HASL PCBs

Electronics Forum | Tue Jan 06 16:31:41 EST 2015 | jacklucas

In switching to lead free processing, we find ourselves having over 400 PCB part numbers with Sn63 HASL finish. And there is no hope of quickly purging inventory and getting our drawings changed to call out a lead free finish. I want to avoid having

Lead Free ...

Electronics Forum | Wed Sep 01 09:29:03 EDT 2004 | patrickbruneel

Hi Ken, It looks like you have some solid practical experience in the transition from leaded to lead-free soldering. I hope you don�t mind me asking a question. With conventional soldering we have a library of workmanship standards available (SMT,

Where's the rush?

Electronics Forum | Fri Feb 24 13:04:17 EST 2006 | patrickbruneel

Hi All, The change over to lead-free is as easy or as difficult as you want to make it The big problem I see with this lead-free transition is that there is no benchmark of acceptability and no defect data (yet) related to visual appearance of a sol

No Lead BGA Hot Gas Rework

Electronics Forum | Tue Apr 13 22:48:11 EDT 2004 | Ken

I assumed the balls were tin/silver 221C or tin/silver/copper 218C liquiduous....but, this is obviously not the case. It looks like you balls are almost pure tin (mp=238C) You are correct. This is exactly the same as using 10/90 high temp balls o


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