Electronics Forum | Thu Oct 01 07:03:55 EDT 2009 | davef
We doubt that Humiseal 1A33 is causing opens in your assemblies. We'd guess the opens occur earlier in the process, but are not hard failures. So, you pass your tests. When applied, the conformal coat flows into the gap in the ball crack and insulate
Electronics Forum | Fri Dec 18 09:27:51 EST 2009 | sforman1
Tom: Once again - why are you using solvent based conformal coating. 1B31 is OK as a CC but it contains Toluene and MEK!! It is only 35% solids which means you are trying to get rid of 65% solvent. If you must use it due to customers requirement then
Electronics Forum | Fri Jun 11 21:17:46 EDT 2010 | whitewing
I was wondering how hard it would be to make a homebrew vapour phase oven, to avoid the problems with very cheap conventional batch ovens, in particular uniformity. I've seen a reference here to a pasta cooker VP setup, but the image link is dead no
Electronics Forum | Wed Dec 29 13:45:08 EST 2010 | methos1979
Chris, The red/blue filter as you call it (on the MV3L it's called HorzVert Sum I think) has become my go-to light source view for manual visual evaluation of flagged solder defects. Of all the lighting sources available, this one gives me the best
Electronics Forum | Sat Jan 08 07:28:19 EST 2011 | jeffr
David, If you have no floppy drive, then your machine is a pre 1990 or earlier machine. (Not CSM84VZ). These machines have a RAM memory with 14 programs max. Can you verify this for me with a picture of the inside of the front of the controler. (jr@h
Electronics Forum | Wed Apr 13 13:40:27 EDT 2011 | jebs
Hi. the res/cap is mostly 805, solder paste will be led free and will only have a few fine pitch IC on each board. The boards will contain between 140 - 160 components and will run a production of 300 - 500 each day with only one or two different boa
Electronics Forum | Thu Sep 08 12:50:39 EDT 2011 | deanm
We use both the black conductive and blue static dissipative ESD totes in the production of Class 3 military electronic assemblies. In some cases we use ESD bags, but most board assemblies are placed directly in an ESD tote with a lid. The totes cont
Electronics Forum | Wed Aug 29 13:43:27 EDT 2012 | icin
Thanks to all of you that have replied and those that may eventually reply. We are feeling better now that you experts with many years of experience have not indicated that this is as common as ESD or Moisture Sensitivity Awareness to the point that
Electronics Forum | Fri Nov 02 09:09:56 EDT 2012 | davef
Sure you can use it it with leaded HASL. Recognize that ... * Your Sn42/Bi58 will no linger be Sn42/Bi58 * Your leaded HASL will no longer be the same leaded HASL that walked in the door to your plant * Lead from HASL coatings can diffuse through the
Electronics Forum | Mon Jan 21 20:15:50 EST 2013 | jeremymek
It depends really on what you are looking to spend. there are small bench top ultra sonic style cleaners ( eg http://www.gen3systems.com/viewprod-GENSONIC.php) or larger full automatic immersion style cleaners eg http://www.mb-tech.fr/en/our-soluti
