Electronics Forum | Thu May 28 23:03:15 EDT 2009 | davef
10kv on the surface of the board. To avoid this charge: * Use an electric paint sprayer to apply liquid -base conformal coating * Purchase a metal nozzle for an electric spray gun so that it can be connected to ground * Use a nuclear ionizer where th
Electronics Forum | Wed Sep 23 10:48:39 EDT 2009 | scottp
I did see ESD issues years ago when we tried using a plastic stencil to print SMT glue. We measured a huge charge on boards indexed out of the printer. I tried ionizing fans but that didn't help. We now only use metal stencils for printing adhesiv
Electronics Forum | Mon Mar 05 11:32:34 EST 2012 | davef
As long as you're convinced that your ionized air gun is not a static generator, it should work fine in dedusting your boards. As you say, covering your board racks while the boards are being stored is probably a better solution. If you google 'esd
Electronics Forum | Thu Jun 14 21:37:53 EDT 2012 | kmots15
Warm De-Ionized Water and a brush? If they water soluble... Realistically, We need to know what flux your working with. Typically the manufacturer will recommend a cleaning methods on the TDS, easiest to stick with that. If they are high reliabili
Electronics Forum | Fri May 17 13:33:45 EDT 2013 | bandjwet
How are you removing the remnant cured coating materials once you scrape. laser ablate or use walnut shells to blast coating material from a PCB? We are using a soft bristled brush or a vacuum source. What about liquids such as cleaning solutions o
Electronics Forum | Wed Apr 24 21:25:46 EDT 2002 | davef
PROPER GROUNDING OF THE "OBJECT" PCBA BOARD: You cannot ground an insulator. Insulators accumulate a charge, but the charge must be neutralized, usually by ionization. We only use ionizers at tape stations and bins where travelers and other paper
Electronics Forum | Fri Mar 24 17:07:39 EST 2000 | John Thorup
Hello Ashok If you are talking about the thousands of volts that is often generated by either simply unrolling the tape to apply or when it is removed from the board after soldering you don't have a lot of choice since it is an insulator. Ionization
Electronics Forum | Tue Jun 24 13:46:21 EDT 2008 | bschreiber
I know it is not what you want to hear, but first and foremost, you must consult your local regulating agencies and here is why: Solder paste contains heavy metals. We are all familiar with the problems associated with lead, but lead free solder pas
Electronics Forum | Mon Nov 27 12:22:52 EST 2000 | rabell
You might want to check with Atlas Copco re the characteristics of the tool case. Although it is plastic, it could have been formulated to be dissipative. Unfortunately, with power tools there is always the conflict between the need to isolate the
Electronics Forum | Mon Jun 18 19:57:40 EDT 2001 | Gil Zweig
Dave: You pose a very good question. We have been in the electronics x-ray inspection business for 18-1/2 years and, to date, we have not received a single report of damage associated with x-ray exposure. However... we do see signs of long term x-ra
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