Electronics Forum | Fri Nov 19 10:14:30 EST 2004 | steve
A customer of mine is having problem. They can't control their humidity. It is very dry. RH averages 28-30%. The water soluble solder paste prints great. But dries out on metal squeegee. Any suggestions.
Electronics Forum | Tue Nov 07 07:55:43 EST 2006 | davef
We use J-STD-001, a widely accepted consensus document, control limits of 18-30*C, 30-70%RH. Search the fine SMTnet Archives for background.
Electronics Forum | Mon Jun 17 21:16:19 EDT 2002 | davef
You�re correct about J-001. It�s interesting though, I find no references to controlling temperature and humidity as an element of an electrostatic discharge control program in the following: * ANSI/ESD S20-20 * "ESD Program Management" by Ted Dan
Electronics Forum | Tue Jan 16 21:27:56 EST 2001 | davef
No we do not use such a storage unit. We say our preferred environment is within: * 30%RH / 84�F * 30%RH / 72�F * 70%RH / 78�F * 70%RH / 68�F J-001C says [words to the effect of]: * At 30%RH and below you�d better make sure your ESD control program
Electronics Forum | Thu Jun 11 10:02:36 EDT 2009 | dyoungquist
Our cleaning process involves the assemblies being completely immersed in the water bath of the ultrasonic cleaner. The assembly has a QFP44 on it. Customer stated that when these assemblies have been cleaned with water in the past (at a different
Electronics Forum | Fri May 05 05:51:44 EDT 2000 | Joe
Thanks for the info. Our system is capable of holding the set limits, but since breakdowns do happen I am considering what to do. So while everything is running, we have a climatic controlled area. The min. relative humidity of 40% comes from the JE
Electronics Forum | Mon Jan 22 21:24:33 EST 2001 | edger_w
Hi! Mike My company is using the electric dry box and it can controlled less than 10% within 2.5 hours if we are not going to open the door. In normal working environment and it still can't control around 30%. Is it something that you are looking
Electronics Forum | Wed Sep 30 12:11:56 EDT 1998 | Claudine Hanson
We are trying to eliminate/minimize the baking process for high lead-count ICs. We would like to reseal packages containing these parts to minimize exposure to humidity. Anyone have or know of a way to reseal or vacuum pack parts? Any suggested eq
Electronics Forum | Fri Aug 23 08:41:37 EDT 2013 | emeto
This is very interesting question. I would think that the temp range will be defined by your machine manufacturers, not by IPC. PCB and electronic parts can handle broad temperature range. Most machines guarantee accuracy in the range (10-30)Degrees
Electronics Forum | Tue Jan 30 14:24:55 EST 2018 | emeto
I used to bake parts before. After I discovered the drying cabinets, that is not a concern anymore. I strongly recommend you to get one of these and try it. It dries them out pretty quick and keeps very low humidity all the time. No heat applied.
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