Electronics Forum | Fri Nov 30 08:35:51 EST 2007 | stepheniii
We put glue on the bottom of the board that already has the topside SMT mounted. We populate the board. We put it through a cure profile. At this stage the topside components are soldered on. The bottom side components are glued on with NO solder on
Electronics Forum | Fri Jan 04 17:44:49 EST 2008 | adlsmt
Does anyone have experience with automated Laser soldering equipment for SMT LED's? I have checked previous posts and did not find anything dealing with actual LED's. Most laser systems are set up for through hole and solder from the bottom of board.
Electronics Forum | Tue Mar 11 16:55:24 EDT 2008 | edmneb
I agree that wave soldering is probably your best method. Of course if you can, tin the wires in a solder pot before insertion into the board. The solder that would be there will probably facilitate wetting a bit better. If you absolutely have to
Electronics Forum | Tue Jul 01 09:57:30 EDT 2008 | grayman
I do not know if you want selective wave soldering or selective point soldering? If you have good budget say, less than US$200k Vitronics is best for wave selective soldering. However, if you have low budget say less than US$100K I suggest ACE or K
Electronics Forum | Thu Jul 10 15:15:17 EDT 2008 | patrickbruneel
I have a tendency to agree with CK Experience and accomplishments in wave soldering are more valuable then the degree. Remember wave soldering is not taught in school although it is a vital process in the electronics assembly. The quality and relia
Electronics Forum | Mon Jul 14 07:49:50 EDT 2008 | edmaya33
Do we really need to follow the IPC J-STD-001 Solder purity? If so, how to effectively balance the chemistry of Sn63/Pb37 other than adding a pure tin on the solder bath? Is this really needed to monitor in monthly basis?How many kgs of pure tin pe
Electronics Forum | Mon Sep 29 20:06:22 EDT 2008 | davef
One common definition of a SMD footprint is: A typical SMD footprint, is composed of: * Solder lands (conductive pattern) * Solder resist pattern * Occupied area of the component * Solder paste pattern (for reflow soldering only) * Area underneath th
Electronics Forum | Sat Nov 08 07:05:12 EST 2008 | davef
Often, your solder paste supplier provides guideline on handling their solder paste. For instance: http://www.aimsolder.com/techarticles/tech%20sheet%20paste%20handling.pdf We have no relationship, nor receive benefit from the company referenced ab
Electronics Forum | Tue Dec 30 08:55:29 EST 2008 | umamaheswaruk
Hi all, I have couple of questions/doubts on solder mask, please clarify. Why green color solder mask is popular when compared to other solder mask (RED, PURPLE, BLUE etc.). Are there any performance issues with other solder mask if I use them.
Electronics Forum | Sun Feb 22 08:23:57 EST 2009 | davef
On a wave solder pallet, we'd expect the metal parts that go through the pallet to be warmer than the pallet material, but we don't expect them to be warmer than the solder. We don't expect a well made board to blister at soldering temperature. So,
