Electronics Forum | Tue Nov 22 09:52:57 EST 2005 | moonshine
Might be resin smear. Check out all the stuff on my free site as articles, photos of almost every board defect imagineable plus much more. Did I mention, It's ALL FREE ALL THE TIME? MoonMan
Electronics Forum | Tue Aug 12 09:17:22 EDT 2008 | bobpan
We used a photo-optic sensor powered off the conveyor after the oven that is tied to a relay that trips when a board is seen at the sensor which causes a buzzer to go off. Very simple to make. Good luck.
Electronics Forum | Thu Jan 29 16:48:49 EST 2009 | slthomas
Looks like a time/temperature problem to me. However, there are a lot of solder fines surrounding the pads in one photo that go beyond what I'd expect from inadequate TAL. Is it possible that the board was misprinted and not completely cleaned, or
Electronics Forum | Tue Sep 29 06:14:15 EDT 2009 | Sean
Hi Davef, This photo taken on field returned board. Previously, we never saw such thing..Perhaps, this could be escapee to the field. Anyway, what is the potential root cause at each stage of the process? Thanks, Sean
Electronics Forum | Thu Oct 06 02:38:29 EDT 2022 | woodcutter
Hello, does anyone use KPR anymore for making boards? I have a quart of it. 262-327-0018
Electronics Forum | Mon Oct 31 14:53:52 EDT 2022 | proceng1
Can you share a photo of this board on a carrier? I'm havinga hard time picturing this?
Electronics Forum | Tue Aug 08 12:57:52 EDT 2023 | serge_pirog
Good afternoon. If you provide more data, I think you can find the problem. Could you provide: part of the Gerber file, namely the stencil and BGA pad and photo of solder paste on the board after print.
Electronics Forum | Sat Nov 04 07:46:36 EST 2006 | itwasbill
Hi all, What are the pro's and cons of pasting ahead? The definition of pasting ahead for this question is the act of pasting 10 or 15 pc boards and then running then repeat. I do not like this philosophy. I'd prefer to paste, run, reflow then
Electronics Forum | Tue Aug 29 16:10:27 EDT 2000 | Danny Carr
Tecnotes buys old pc boards, contact Ken Kaplan 908.620.3882 sales@tecnotes.com 224 E. Highland Pkwy Roselle, New Jersey 07203 There is also I think it's called FOX recycling in San Jose, CA, but I don't have their address or phone number
Electronics Forum | Fri Apr 11 02:53:52 EDT 2008 | joseph_gonzales16
Hi I think much beter to go to upgarade PC because yo dont know the life time of second hand mothrer board if you buy an upgarde mohter baord ther is a warranty it is my suggestion. thanks i am a service of MPM printer and SPeedline oven and also wa
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