Electronics Forum | Tue Oct 13 15:38:23 EDT 1998 | Dave F
All Y'll How do you clean components that must be added to an assembled board after water wash? BACKGROUND Our basic process goes like this: 1 Print paste with OA flux, place, reflow, wash 2 Repeat 1 3 Insert PTH, OA flux, wave, wash 4 Insert
Electronics Forum | Tue Oct 13 22:22:14 EDT 1998 | mike
| All Y'll | | How do you clean components that must be added to an assembled board after water wash? | | BACKGROUND | | Our basic process goes like this: | | 1 Print paste with OA flux, place, reflow, wash | 2 Repeat 1 | 3 Insert PTH, OA flux
Electronics Forum | Mon Sep 28 12:30:55 EDT 1998 | Bill Schreiber
Remember, even if you are successful in your justification of not cleaning your final product, there will always be a need for cleaning. Screens, stencils, misprinted PCBs, wave solder pallets, squeegees, tooling, etc. New cleaning applications can
Electronics Forum | Sat Sep 26 19:16:54 EDT 1998 | Graham Naisbitt
Ajit, How clean is clean? Are you running fine-line, fine-pitch; COB, BGA, Flip-Chip; making high rel circuits and putting them into a hostile environment? Well, as I have just posted to an earlier similar question on the SMTNet, there is no such thi
Electronics Forum | Sat Sep 26 19:09:17 EDT 1998 | Graham Naisbitt
As an addendum to Daves posting, please consider that: There is no such thing as no residue fluxing. A no-clean must herefore, have benign residues - in other words, they are not as efficient at removing surface oxides to enable good solder joints. S
Electronics Forum | Mon Aug 24 07:16:52 EDT 1998 | Paul Horan
| | | I am looking for advice or information from anyone about the possible reliability problems associated with epoxy on solder pads of discrete devices. Will the epoxy expand and lift over time, Will there be adverse reaction between the solder and
Electronics Forum | Wed Jul 08 17:31:31 EDT 1998 | Dave F
smd: I think the idiom is "schmuck," rather than "putz." ;-) What are you concerned about? That the residual water in the 80 pin connector housing will flow down the boards and rot-out the bottom of your new boxes? Dave F | I am about to place a
Electronics Forum | Sat Jun 13 11:00:21 EDT 1998 | Earl Moon
| We are very concerned about outgassing in wavesoldering. | If anyone knows how to use properly well pcb's before soldering in order to avoid this problem please let me know. I have this problem in FR4 large double sided pcb's. My soldering line is
Electronics Forum | Fri Jun 12 14:22:53 EDT 1998 | Ryan Jennens
| Hey all! | The wave solder warrior is back. I have found a flux which leave almost no residue (the least yet), but because of its super low solids content I absolutely cannot get topside fillets. The multi-layer, two sided board is on a pall
Electronics Forum | Wed Jun 10 21:58:20 EDT 1998 | Dave F
We use them, but we never thought about them. WHAT ARE THEY? The hand lotion we provide for our operators. BACKGROUND: Operators hands take a beating. They 1 Work in a humidity controlled 35 to 50%RH environment that is drying 2 Wash before and
