Electronics Forum | Fri Jan 02 17:47:21 EST 2004 | gpaelmo
Yes, We have done away with masking with kapton 8 yrs ago. As long as the goldfingers are leading edge you can use one of these: 1. rubber goldfinger boot/glove - contact east use to carry them...don't know if they still do. 2. fiberglass glove - ma
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 | Mon Mar 12 11:27:35 EDT 2007 | coop
I am not using a solder pallet, I don't think the problem is contamination related, because these parts are on some of our other assemblies, and they're being waved with no problems. The problem seems to be mainly on our panelized boards for some rea
Electronics Forum | Mon Jun 02 15:38:20 EDT 2008 | wavemasterlarry
I have a pretty good system for my counsultency rates of charge. It is a multi-tire system so to speak.I took a seminar on value stream mapping which is how come I know this stuff.I catgorize my consulting fees by area of expertise of course. Exampl
Electronics Forum | Tue Jan 24 15:58:04 EST 2023 | proceng1
I have been involved with our Selective Soldering process for 15 years or more. Using ACE Protech machines and now a Juki. Our first ACE machine replaced 4 hand solder operators easily, allowing them to work on other projects. The machine isn't "set
Electronics Forum | Fri Jun 23 14:10:01 EDT 2000 | Chrys Shea
Sounds like the mask to me. Had a similar situation a couple years ago. The mask wasn't fully cured, so it absorbed water that the preheaters couldn't dry out. When it outgassed at the wave, it caused a lot of micro turbulence that broke the surfa
Electronics Forum | Thu Jun 28 10:58:28 EDT 2001 | brownsj
The question is are you talking of a reflow or wavesolder process. If your talking reflow I used to use a stepped stencil to ensure I had sufficient paste and then make a double pass with my squeegees. First pass with a 45 degree rubber squeegee to f
Electronics Forum | Tue Nov 02 23:34:58 EST 1999 | chartrain
You appear to have two problems working against you at once. One is component lead corrosion that the no clean flux isn't aggressive enough to remove. Do a simple dip and look test. Flux the leads of a component and dip it into the molten solder for
Electronics Forum | Thu Oct 14 10:49:13 EDT 1999 | Dan Woodward
Andrew, As I read about issues with reworking connectors, whether they are surface mount or PTH soldered, I wonder if compliant pin pressfit connectors are being considered. They are easily assembled after all SMT without any thermal input, and on e
Electronics Forum | Fri Apr 10 15:59:51 EDT 1998 | Justin Medernach
| We are having a bridging problem with SOIC 14,16 and 20 pin devices during flow solder of the bottom side of our boards. This bridging occurs about half way up the lead between the board and the body of the IC. The chip parts are no problem. The
