Electronics Forum | Tue Jun 27 01:41:42 EDT 2006 | grantp
Hi, How come so many good threads get off track because of this Guru fool. To get back on track, we have been running SN100C in our pot for a few weeks now, and it's incredible, and working really well. Glad I listened to the advise of people on th
Electronics Forum | Wed Jun 14 01:24:14 EDT 2006 | AR
Thanks ;) We even did some product development on that one. We took a normal bar of wave soldering alloy, sawed a suitable length off it and drilled a carefully measured hole through the bit of solder. The hole is wide enough so that the blister tap
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 | Wed Jun 21 13:02:49 EDT 2006 | grantp
Hi, That was another very interesting article posted. This article seems to point to the same conclusion, which is that lead free soldering is more reliable than Pb components with Pb paste, and Lead Free components with Pb paste? From what I see,
Electronics Forum | Thu Jul 06 03:03:56 EDT 2006 | ronalds
Thank you all for your input. The MF300S Multicore flux is rated for lead free. There is not much dross or contamination. We are using nitrogen. I've tested the boards with the curing test of IPC-TM-650. I think you're all right about the preheat.
Electronics Forum | Mon Jul 17 11:19:46 EDT 2006 | Chunks
Never seen a direct study on these two correlation�s before. But if you have moisture sensitive devices, higher humidity could have some affect on them. If you are talking regular Rs and Cs over wave solder - I kinda doubt it. Water based fluxes d
Electronics Forum | Fri Jul 28 08:08:18 EDT 2006 | Chunks
Screen printer, placement machine(s) and oven. You may also need a hand insertion line, selective solder or wave soldr and some form of electrical test. There are a ton of name brands that no two people can agree on. To get a better feel for what
Electronics Forum | Fri Jul 28 09:40:11 EDT 2006 | pavel_murtishev
Good afternoon, 1. Yes, most of all I suspect the components. Could you explain what does mean "reflothermal recipe"? Ramp-to-spike? Ramp-soak-spike? Something special? Thanks. 2. Void is really huge. This voiding differs from "standard" voiding ef
Electronics Forum | Mon Aug 14 12:08:35 EDT 2006 | cuculi54986@yahoo.com
I agree with using the homeplate design on chips. Some Pb-free solder paste manufacturers recommend 1:1 apertures. This, in my experience, is not a good idea with any of the SAC305 pastes I've tried. I've been using the same stencil design guideli
Electronics Forum | Mon Aug 07 09:04:09 EDT 2006 | molos21
Hi everyone, I am starting to use the lead free process and I had a few wetting problems (solder did not reach top side) at the wave soldering process once the pcb had passed our smt line (one heat pass). From what I understand, I have had a problem
