Electronics Forum | Wed Nov 08 20:18:26 EST 2000 | Dave F
The style of US standards has been moving away from such specifications for some time. So, the approach has become ... Here�s what I want ... Functioning, built to print, clean, undamaged boards. Here�s how I want you to do it ... I don�t care, jus
Electronics Forum | Sat May 06 16:43:45 EDT 2006 | grantp
Hi, We have had some failures due to particles, but only larger visible particles such and you should not need a real "clean room" but it's important to make sure things are kept clean, and sweep and mop as often as you need to make sure everything
Electronics Forum | Mon Oct 16 16:25:53 EDT 2006 | Cmiller
I think we run our Vectra between 9 to 14 PSI. If memory serves me, I dont think you can set it above 14 PSI. We use VOC free no-clean. Your number seems WAY high. Check the nozzle. You also may need a different nozzle size. We always run a good filt
Electronics Forum | Fri Nov 17 15:12:26 EST 2006 | mds33200
Hi, I am located in Auburn Mass (USA) right near Worcester. Now I noticed you talked about micro stencil for a populated PCB, would I need one? Or could I use a syringe to lay a tiny dot of paste since im only replacing a chip or 2 (at the moment)? I
Electronics Forum | Mon May 06 21:40:40 EDT 2013 | davef
ANSI/J-STD-001: * Temperature and Humidity: 18-30°C, 30-70%RH ** If out of range, shall verify electrostatic discharge control program according to ANSI/ESD S20-20 is adequate. ** For process control, more restrictive temperature and humidity limits
Electronics Forum | Tue May 07 03:56:30 EDT 2013 | pavel_murtishev
Davef, Thank you. I wonder if you have ever faced with concrete layer thickness selection for SMT shops? All I have found refers to metal treatment shops (primarily milling & drilling). 6" concrete is thick enough for them to stabilize milling machi
Electronics Forum | Fri Nov 17 14:42:06 EST 2006 | billwestiet
Mark, This is a big topic. Where are you located, it would probably be best to hook you up with someone in your area. Anyhow, lead or lead free should be based on whether the circuits are lead or lead free. I would guess that cell phones would all
Electronics Forum | Fri Nov 17 16:24:18 EST 2006 | billwestiet
I'm in North Attleboro, small world. To answer your question, you can deposit small dots of paste with a syringe. Kind of tricky work, and there are small stencil soluions out there fairly inexpensively. See http://www.minimicrostencil.com/ (I do
Electronics Forum | Mon Sep 28 10:12:53 EDT 1998 | Chrys
| Hello, | I need some users information about "Air knif" in wave soldering: | 1. Does it decreases bridging ? | 2. Is it self installed of a purchesed kit (if purchesed, who are the recomended vendors) ? | 3. Any other information about the issue. |
Electronics Forum | Sat May 06 22:03:57 EDT 2006 | mika
There is a ISO Standard 14644-1 Class Limits, but I don't know if if this is applicable in the "so callled" SMT standard production scenaraio and if so, what class would it be? I hope that some other nice guys will correct me, or have i totally lost
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