Electronics Forum | Wed Mar 24 20:10:06 EST 2004 | Ken
IF you open up your TV, cd player or color printer you will see RA / RMA flux ON EVERYTHING! The waxy binder protects the halogenated compounds from becoming active with atmospheric moisture. Self healing is a good way to look at it. However, OA is
Electronics Forum | Mon Apr 12 11:32:47 EDT 2004 | Luis Lazcano
Can you share some information on the hazardous materials and cleaning details for your manufacturing processes, please ? These are the questions I need to ask you: 1. Do you use brominated fire retardant in PWB material? If not, what other type
Electronics Forum | Tue Apr 13 14:14:59 EDT 2004 | russ
I have actually printed this same condition with type 3 paste Alpha WS709. I posted this for discussion and cannot remember what I called it. We did need to clean the stencil after every three prints. I did not check volume on these locations but
Electronics Forum | Tue May 25 10:16:03 EDT 2004 | Bimal Patel
We are doing assemblies using Immersion Silver coating for RF assembly for a while now. We did not have problem using 63/37 SN/PB solder paste untill recently. We started seeing black marks on the finish and around the solder joint recently. We have
Electronics Forum | Tue May 25 10:16:07 EDT 2004 | Bimal Patel
We are doing assemblies using Immersion Silver coating for RF assembly for a while now. We did not have problem using 63/37 SN/PB solder paste untill recently. We started seeing black marks on the finish and around the solder joint recently. We have
Electronics Forum | Wed May 26 03:04:09 EDT 2004 | johnwnz
Mark, that would be a good report to have a look at can you post it on the site or mail it out to me? Also I've been having an issue with blue peelable solder mask on silver boards where it peels the silver off with it. I've only seen this since my v
Electronics Forum | Wed May 26 06:59:10 EDT 2004 | davef
Some peelable solder masks attack immersion finishes. It appears components in the peelable soldermask, such as ammonia, are not very friendly to these particular surface finish. [We've wanted to investigate the effect of mask application thickness
Electronics Forum | Fri Apr 23 07:30:35 EDT 2004 | pjc
Adding a Chemistry will reduce density of solution to get under the devices more effectively. You can clean your OA flux residues well enough with just hot water and hot DI water rinse. Top batch cleaners: http://www.speedlinetech.com/electrovert/aqu
Electronics Forum | Fri Apr 30 11:55:55 EDT 2004 | Chris Lampron
Hello Fredrick, I have used several methods of TC attachment including quick set adheasives (not good at reflow temps as Dave suggests) long set two part epoxies (work well if you have the time to wait for a sufficiant cure) temprobes, tape (kapton
Electronics Forum | Fri Apr 30 12:34:12 EDT 2004 | Bryan She
Hello all, these days I've met an OSP board testability issue. 1.OSP board 2.Solder paste:Kester R244 no clean paste 3.Print solder paste on test pad. Issue: There's brone(light yellow)flux residue on test pad,and the probe can't penetrate the residu