Electronics Forum | Mon Apr 16 09:58:55 EDT 2007 | davef
"Although some lead-free pastes performed adequately and newer pastes work better than earlier formulations, this detailed experiment confirmed that tin/lead solder pastes wet back to PCB pads better than lead-free solder pastes. Therefore, a more ac
Electronics Forum | Fri May 18 11:51:37 EDT 2007 | grantp
Hi, We have a soltec wave, and apart from the really bad software running it, I am wondering if it's time to replace it with selective soldering, which will use less solder, and much less power than a wave. What is a good inline replacement for a w
Electronics Forum | Wed Jul 25 11:16:34 EDT 2007 | lloyd
Hi Folks, I hope someone can help me, Is the homeplate stencil design (for reduced solder paste) the same for preventing solder balls as it is for reducing tombstones? i.e. the reduction of solder paste under the component termination. I'm trying to
Electronics Forum | Tue Nov 20 11:01:05 EST 2007 | dstevenson
Is anyone using a laser to selectively solder components to a board? I'm just starting to research selective soldering methods for the company i work for as we're looking to replace our current hand soldering processes for lead- and lead free- produ
Electronics Forum | Wed Nov 28 01:07:36 EST 2007 | shy
is there any standard gap between the terminal and pad if we place the glue? SMT-4 mention as per what you understand which is using glue at SMT without solder paste and run at wave solder for the solder paste at the terminal. Glue supplier recomm
Electronics Forum | Thu Jan 03 10:55:17 EST 2008 | davef
Q1: Can Stainless steel be soldered? A1: Yes, stainless steel can be soldered. Q2: If yes, is our normal process adequate? A2: We know nothing about your normal process. Common flux used in routine soldering will not step-up to the requirements nece
Electronics Forum | Thu Jul 31 23:07:55 EDT 2008 | davef
J-STD-006 lists maximum contamination levels for most solder alloys. This is the basis for purchasing solder. The SOLDER BATH contamination levels in J-STD-001 are based on decades of experience. But these contamination thresholds of various metals
Electronics Forum | Tue Aug 26 22:56:39 EDT 2008 | omid_juve
we have solderability problem(some pins aren`t soldered) with two devices in our board with the below detail EP1K30QI208-2 brand:ALTERA with the package PQFP-208 TMS320VC5416PGE160 brand:TI with the package TQFP144 these two devices are pb free but t
Electronics Forum | Sat Aug 30 12:36:05 EDT 2008 | omid_juve
we are doing many experiment on this problem 1)sn63 pb37 solder paste +normal profile 2)sn62 pb36 ag2 solder paste +normal profile 3)pb free solder paste + pb free profile 4)sn63 pb37 solder paste + pb free profile but still the problem exist so i th
Electronics Forum | Wed Sep 10 12:44:55 EDT 2008 | vladig
Well, it wasn't as easy to figure out the root cause. The last image is below. It shows how the board finish looks like (the trace was under solder mask). AS you can see, the layer of E-Ni is spliting (the board shop admitted the problem afterwards).
