Electronics Forum | Wed Sep 01 13:48:29 EDT 1999 | Dave F
| Dear fellow process engineers, | | Some solder joints "trough hole component" have cracked. I suspect that in the market some technician tryed to straighten some components (LED) and has applied enough force to actually brake the joint. The joints
Electronics Forum | Mon Aug 30 16:14:58 EDT 1999 | Dave F
| I am building a board with T1/34 LED's in a 10X10 array there are 12 arrays in a panel. The LED's are body to body in the array, .1 spaced. The LEDS have been autoinserted on a Universal RAD III, so they are cut and clinched. The trouble I am havin
Electronics Forum | Wed Sep 01 14:07:41 EDT 1999 | Dave F
| For space contracts we have to mount chip capacitors/ resistors etc 0.1 to 0.4 mm from the pad height. | | This is to compenstae for the CTE differential in the substrate/component and also to ensure cleanliness. | | Does anyone have any new idea
Electronics Forum | Thu Aug 26 08:15:13 EDT 1999 | Brian
| | Has anyone used bar solder from a company called "Electrum Inc." | | What kind of results did you have? | | | | | Hammer: Try: | | Electrum Recovery Works 827 Martin St Rahway, NJ 07065 908-396-1616 800-622-1192 Canada 800-535-1192 Fax: 908-3
Electronics Forum | Wed Aug 25 19:44:35 EDT 1999 | Dave F
| Does anyone have any information on stencil aperture/pad ratios for noclean solder paste. In the past I have experienced severe solder ball problems when using the same size apertures from aqueous products as I do with the No-clean products. Cons
Electronics Forum | Thu Aug 19 04:49:09 EDT 1999 | Earl Moon
| | | We have developed a new process for removing moisture from surface mount devices. We have one site where PCB laminate drying has been reduced to 1.5 hours. A standard oven took 4 hours to do the job. I am looking for a firm who does large scale
Electronics Forum | Wed Aug 18 21:18:00 EDT 1999 | Dave F
| WE ARE CURRENTLY HAVING PROBLEMS REFLOWING BOARDS WITH WHITE TIN PLATING. WE ARE NOT GETTING GOOD WETTING ON THE PADS. | WE HAVE CHECKED THE REFLOW PROFILE AND TRIED DIFFERENT PASTE'S. | WE THINK THERE MAY BE CONTAMINATION OR OXIDATION ON THE PADS.
Electronics Forum | Fri Aug 06 08:45:32 EDT 1999 | Dave F
| Folks, | | Probably not the forum, but forgive me as I am but a dog as described by Justin and admitted by me. However, I am looking for a previously owned Camalot 1818 "goop" dispensing system for selective wave soldering operations. Anyone knowi
Electronics Forum | Fri Jul 30 17:16:59 EDT 1999 | Dave F
| Hello Netters, | | I have a customer who wants us to aquaeos wash a PCB after all operations have been performed. The PWB is two layer FR4 with a Transformer, a Multichip Module with Conformal Coating, (6) 11" insulated wires that are tinned on e
Electronics Forum | Fri Jul 30 17:32:15 EDT 1999 | Dave F
| Very shortly I will be evaluating OA flux and aqueous cleaning to replace our RMA and solvent cleaning process. I am primarily interested in batch aqueous cleaners for reasons of budget, floor space, etc. I am concerned about the ability of H2O t