Electronics Forum | Tue Sep 17 18:39:49 EDT 2002 | dragonslayr
yea yea yea - another voice from the chorus weighing in- I think you are on the right track here- I can imagine some of your difficulties with co-registration with other sites. And what of the current users? do we all need to register to continue? w
Electronics Forum | Thu Nov 14 08:53:44 EST 2002 | MA/NY DDave
Hi As DaveF suggested I would contact a shop that has done repair. You should have the PCB/PWB Print and laminate information with you when you make the call. Ask the repair shops if they have continual experience with the Rogers Material you are us
Electronics Forum | Mon Dec 09 21:15:27 EST 2002 | MA/NY DDave
Hi I haven't looked yet at what DaveF gave you. It is my guess that your SJR stands for Solder Joint Reliability. The answer would in general be NO to your question. Usually things in the design community are done in steps that provide a certain
Electronics Forum | Mon Dec 09 20:34:20 EST 2002 | MA/NY DDave
Hi I hear you, and you are right, yet most good process engineers strive to make future life a little easier by going back to the designers and making some alterations that don't affect performance. Now if we did a 6 sigma type analysis than this p
Electronics Forum | Mon Dec 23 13:36:42 EST 2002 | Jkhaiar
Hi Dave F As usual a simple Question with a complex issue My view to the music Walkman or any other entertainment at work place issue is a matter of Principle. When accepted to sell my Working hours for a pay "The entire working hours should be tota
Electronics Forum | Fri Jan 24 09:04:54 EST 2003 | russ
How are these connectors and dips oriented? If the leads are parallel as opposed to perpendicular to to the wave this can promote bridging depending on spacing and length. The long leads showing icicling are most likely either inadequate heat OR the
Electronics Forum | Fri Feb 07 16:10:14 EST 2003 | MA/NY DDave
Hi Gee, It seems funny to comment on your own post. I notice that the original poster and a respondent, like me, are striving to create some voiding by design to improve the way this joint will form. NEAT!! I still think that those vias as DaveF p
Electronics Forum | Fri Apr 18 11:12:37 EDT 2003 | tsongshe
Thanks Dave.F. I 've carefully read what you recommended,but still can't get the answer.it's two different suppliers with diffrent pad patterns of each components.one of them can work well,while the other cant do.I think it must has something to do w
Electronics Forum | Wed Jun 16 13:25:09 EDT 2004 | russ
have you tried a more agressive flux like water soluble to see if the problem goes away? Or can they be hand soldered with no problem? I am basically out of ideas other than a bad nickel or tin finish. The reflow profile didn't seem out of whack f
Electronics Forum | Thu Oct 07 12:14:14 EDT 2004 | bschreiber
The pre-solder cleaning of misprinted PCBs can be a completely different experience from a post-solder application. While the paper that DaveF references is excellent, you may want to read the paper by Richard S. Clouthier, "SMT Stencil Cleaning: A
