Electronics Forum | Thu Aug 31 04:56:44 EDT 2023 | auriga2001
I would start with the following possibilities and solutions: Add extra solder to the pads with a Camalot dispenser; or preformed solder slugs placed as an additional component if there is enough extra pad to attach it without interfering with compo
Electronics Forum | Thu Sep 14 13:34:43 EDT 2000 | Boca
Of course the others have great answers, try NOT to do it, for all of their reasons. However, had to do it in the past, OEM, custom chip, die wouldn't fit in a SM package, volume wouldn't support a second package type ...... and on and on. So we us
Electronics Forum | Fri May 24 07:09:52 EDT 2002 | Andy Hoggan
Teh amount of silver on an immersion silver board won't effect 62/36/2 tin/lead/silver solder, however if the silver on the board is on the thick side and you have a high trace silver content in a 63/37 tin/lead then with the combination of the two y
Electronics Forum | Mon Dec 02 09:47:54 EST 2002 | davef
Most modern spec do not distinguish between process methods. So, there is no allowance "if you are using bla bla bla method, you should see ... . But if you are using bla bla de bla method, ignore that and look for ... ." Most specifications requi
Electronics Forum | Wed Dec 18 12:49:04 EST 2002 | Mike F
I've used rice, too. The trick is to make the bag big enough to hold down the part or parts, but not so big it interferes with the top side heating of the parts around it. I've never actually used lead or steel shot, the heaviest fill material I ever
Electronics Forum | Mon Apr 21 17:13:04 EDT 2003 | jonfox
I remember from my days of machine setups that these packages' CAD data is actually off center from where the placement needs to be. Usually CAD center comes up with the parts more to the large collector/ground pad so the the smaller gull wing leads
Electronics Forum | Tue Sep 28 17:56:02 EDT 2004 | Vee Sar
Adam, I would first check hole to lead sizes on the components that you are having hole fill issues with to see that the spacing is withing spec. Second, check for oxides on lead tips, and contaminated leads that cause poor wetting and insufficient
Electronics Forum | Tue Jun 13 17:16:44 EDT 2006 | slthomas
"I believe I was the one who stated in an old post that prying the leads is rediculous." I have been down this road as well. The prez of my previous employer decided that because he could pry .012" leads off the pads with a screwdriver that we had a
Electronics Forum | Tue Oct 14 09:26:15 EDT 2008 | bickt
Hi, I have been at both ends of this business. I installed lines and have been in manufacturing for some 25 years. Do not go by the test boards that the installer or OEM uses. these boards are too broad and loose for any kind of guide line to est
Electronics Forum | Mon Jul 20 12:39:11 EDT 2009 | bigdaddysoy9
Hello Reese, Lifted leads are and have always been a big concern for us. We were using a system that had 12 cameras total. 8 angled and 4 top-down. I could not get that to catch lifted leads without having a ton of false calls. I thought that may
