Electronics Forum | Thu Jun 19 12:40:09 EDT 2008 | realchunks
If I read this right, it says 50 seconds or less above 200C. It doesn't say you cannot go above 200 C. Right? if so we do it all the time. We have some Quality gurus here that always blame our ovens for everything form a didle-I-Joe to a Dam-If-I
Electronics Forum | Fri Jun 20 14:08:14 EDT 2008 | wavemasterlarry
LISTEN this is quite a soar subject to me.i have old wounds too from these capacitators and argued with the darn engineers at my old place of employment that if they only stuck to wave and through � hoel stuff, they wouldn�t be in this pickle. IF the
Electronics Forum | Fri Jun 06 22:10:11 EDT 2003 | MA/NY DDave
Hi John I believe gave a good answer with cautions. The .001 or .1% is the main criteria that internationally means you are Lead-free per JEITA, the EU and NEMI. They sat around at a table and decided is how they got the .1% John did note that yo
Electronics Forum | Sun Jun 08 19:30:25 EDT 2003 | MA/NY DDave
Hi Gee I got computer crashed at my last try. I am glad to see my note got through pointing you to the other contributors. One thought about that profile they give is that they JEITA or Jedec or ??? with a J is striving to balance what they know
Electronics Forum | Wed Jun 11 10:24:23 EDT 2003 | kris
Hi, The percentage of lead (0.1% or otherwise) is still being debated in the EU where the legislation is in place. The industry is pushing for a 0.2% limit,(if lead-free has to be) as it is considered a limit where solder can be recycled economical
Electronics Forum | Tue Dec 24 09:34:55 EST 2013 | emeto
Hi, it is a not given clear here. I will tell you some basics about the profiling: 1. Profile stages A. Preheat - the board preheats from room temp to 130-150C depending on the paste B. Soak - 150-170(or other range depending on the paste). here th
Electronics Forum | Wed Jan 19 18:24:09 EST 2005 | russ
Make sure that you are running the right leadfree profile. You may want to verify that it is correct with thermocouples. Use Indiums Tacflux023, This should work. As far as cleaning them after this I will have to leave up to you. Russ
Electronics Forum | Thu Jan 05 15:30:19 EST 2006 | samir
Pure ignorance is my answer to that.... You're with a CM, right?? Your idiot customer probably has never stepped foot on a manufacturing floor in his entire gott-damn life, but.... he reads SMT Magazine every month, and probably read some article
Electronics Forum | Fri Mar 02 14:43:28 EST 2007 | stimpk
Are you using lead free paste also? Are all the other parts on side 1 ROHOS ? etc.. can they handle your leadfree profile. Those need answered 1st. But to answer your question. Yes you can run the BGA side 1st ( hopefully with leadfree paste and ho
Electronics Forum | Wed Oct 16 18:54:36 EDT 2002 | davef
There is not requirement for a low O2 atmosphere for no-lead soldering. There was quite a lot of work on lead-free profiles in the European IDEALS lead-free project and some info on this is available for download at: * http://www.lead-free.org/down
