Electronics Forum | Wed May 30 18:44:06 EDT 2007 | binow
Various processes throughout the factory will use a stamp to signify ICT has been completed or QA has been done. The problem we are having is once the boards have made it through all the steps and have the stamps on them signifying who did what; the
Electronics Forum | Thu May 31 13:39:23 EDT 2007 | wavemasterlarry
You need to switch to an alcohol based stamp. It will work cause that's what we use.
Electronics Forum | Thu May 31 08:18:18 EDT 2007 | davef
The following make inspection stamps. They may be able to help: * VRS Marking; 567 Camino Mercado Ste. A, Arroyo Grande, CA 93420; 800-782-6790 805-481-9787 F800-743-3135 F805-474-1238 contactvrs@vrsmarking.com vrsmarking.com * Des Moines Rubber Sta
Electronics Forum | Thu May 24 22:56:42 EDT 2007 | davef
We'd guess that your white residue on the solder is from minerals in the supply water. We expect the levels of these minerals that you see: * Vary depending on the season. Check with your public water authority for anaylsis. [Recognize that this ma
Electronics Forum | Wed Aug 27 00:45:35 EDT 2003 | kenBliss
Bman Each area and process has a unique machine for a reason. Professional engineers at the various OEM�s have thought these things through and there are specific reasons why you don't wash stencils in a board washer, bake pizzas in your reflow ove
Electronics Forum | Sat Mar 17 22:11:49 EDT 2018 | jacobidiego
Hello experts, I wonder if you have any recommendation regarding reducing the boards needs to be washed out.... it is mainly generated due to first miss-printing after each Production Order setup.... but since board washing is a very manual process,
Electronics Forum | Mon Apr 25 02:25:32 EDT 2005 | Mike Konrad
The issue of using ultrasonic technology for post reflow de-fluxing presents challenges in two categories: Controversial: Although there are recent studies that indicate acceptance with ultrasonic technology on populated assemblies, there remains si
Electronics Forum | Thu Feb 10 18:53:04 EST 2000 | Russ
It is okay to use OA flux if you have a very robust cleaning process. lots of water and saponafier are good things. No-Clean is much safer when it comes to reliability. I personally like the Indium no-clean products. Russ
Electronics Forum | Mon Mar 19 15:55:54 EDT 2018 | emeto
1. Use ultrasonic cleaner after you manually wipe out the main amount of solder. 2. Ask yourself why you have misprints so often. I work in this industry for 20 years and can't recall having many misprints. Something in your process should be fixed.
Electronics Forum | Sat Feb 05 21:58:08 EST 2000 | Stu Leech
I agree with all of the previous comments. 1) Here are a few things to keep in mind when cleaning with water. To effectively clean, any liquid must wet the surface. By itself, water has a surface tension of 70 dynes/square cm. This is relaively hig
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