Electronics Forum | Mon Dec 19 12:23:49 EST 2005 | Amol Kane
there are no issues with running leaded lead free parts with snpb solder. the problem arises when lead-free BGAs are run with SnPb solder. running hotter (i.e mimicing the SAC reflow profile)merely ensures that the sac solder melts and mixes with the
Electronics Forum | Wed Jun 21 13:25:16 EDT 2006 | muse95
I see what you're saying - I'm not a process guru by any means. I was going on the premise that SAC melts at a higher temperature than SnPb. Basically I think of it as a BGA is joining solder to solder, unlike an SOIC where it is tinned metal lead t
Electronics Forum | Fri Aug 28 05:22:47 EDT 2009 | sachu_70
Would suggest you have a re-look at your reflow profile. There could possibly be a higher thermal demand to solder the Pb-free version of these screw terminals considering that external plating has changed.
Electronics Forum | Wed Jul 24 10:07:44 EDT 2019 | ameenullakhan
Hi Team, Can anyone suggest me best stencil opening for CCGA. Attached is the component details. Solder paste : water solube - ORL0 - Jtsd 001 ( Sn63/Pb37) Any one has qualified the same. Regards, Ameen
Electronics Forum | Thu Aug 24 09:41:46 EDT 2000 | Dr. Ning-Cheng Lee
The optimal profile to choose is determined by the following factors, (1) thermal mass and distribution across the board, (2) reflow temperature range needed for a particular alloy, (3) the nature of flux. When the thermal mass is small, such as cell
Electronics Forum | Tue Sep 16 16:16:12 EDT 2008 | ck_the_flip
Yes, this scenario is fine. However, BGAs are a different story since the ball is the bulk of the solder joint. In this case, you MUST run a "hybrid profile". Look it up in the fine SMTNet archives (keyword: hybrid profile). I have "been there an
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
Electronics Forum | Mon Jun 27 09:09:19 EDT 2005 | Bob R.
We've all been soldering Pb free parts for a couple decades. All your surface mount capacitors have probably had a Sn finish for years. Whenever one of our parts with a SnPb finish converts for Pb free we have the manufacturing site do a small buil
Electronics Forum | Sat Dec 17 11:45:40 EST 2005 | DAM
You know, many SMD components have copper alloy leads and then a copper (or Ni) barrier on them. On the copper (or Ni) barrier there is the finish. Usually the finish is made of Sn\Pb (tin-lead), and if I solder with a Sn\Pb solder paste it's all rig
Electronics Forum | Thu Aug 17 01:31:31 EDT 2000 | Dreamsniper
Steve, I'm using 5 Sn/1.5 Ag/93.5 Pb Solder wire with a melting point of 300 deg. C to connect my thermocouples on smd components for thermal profiling. I'm using a soldering iron with an adjustable temp. to be able to melt my solder wire. Temp is ab