Electronics Forum | Mon Jan 03 00:30:30 EST 2011 | raghu
Contact your distributor for the coating or > Humiseal directly. Humiseal has had a recent > issue with batches of 1B31. The specific problem > is lack of adhesion, which is what you have as > well. You need to find out if your batch # is one >
Electronics Forum | Wed Apr 09 20:05:21 EDT 2003 | davef
Kevin: We know of no handy approach to developing recipes. * Certainly programs provided by profiler suppliers give you a good first pass, based on your oven and solder paste. * Second pass in developing your recipe comes through trail and error chan
Electronics Forum | Sun Apr 05 09:46:47 EDT 1998 | Earl Moon
| We are looking at reflow soldering some Flexi-rigid | pcbs. I have heard that IR reflow soldering can make the Polyimide "self heat" and cause de-lamination. | Does anyone have any info. The thermal problems associated with polyimide rigid/flex de
Electronics Forum | Fri Nov 13 23:33:33 EST 1998 | Kallol Chakraborty
| | | I believe that gold fingers on my circuit boards are being | | | contaminated and need to clean them with some chemical | | | solution. Any recommendations. | | | | | Chuck: What is the type and source of your contamination? Dave F | | We a
Electronics Forum | Fri Feb 11 14:32:44 EST 2000 | Ashok Dhawan
I am looking for a Masking tape for Gold fingers on a PCB . It should not leave any residue on reflow soldering ( 220 deg c). Currently, I am using Kapton tape with Silicon adhesive. It is leaving minute quantities of residue? The fingers are al
Electronics Forum | Tue Jan 14 13:18:15 EST 2003 | russ
We utilize our distributor(s) Contact East, Hisco, Future, Arrow, etc.. for our needs. There are a multitude of manufacturers for this tape (3M, Dewal Ind.,etc...) so, you need to find out waht you like and dislike for this magic tape. Some manfs. ha
Electronics Forum | Thu Feb 06 14:06:09 EST 2014 | rgduval
If you get a response to this, I might have a need to look into something similar. Though, I don't need adhesive..I need something more like kapton or masking dots. I am working on a new job that requires conformal coating, and LEDs that need to be
Electronics Forum | Thu Oct 23 09:48:15 EDT 2014 | rgduval
We tried various products years ago to no avail. As you noted, labels either survived reflow or wash, but, rarely, both. We had one that was made out of kapton, and no more than .125" wide that survived more than the others...but, I don't recall an
Electronics Forum | Wed Jun 03 15:22:12 EDT 1998 | Greg Curler
| | We have experienced poor adhesion of acrylic conformal coating to plastic bodied IC�s. The observed symptoms of this are a blistering or lifting of the coating at the surface of the component, although peel testing has revealed that this is not
Electronics Forum | Tue Nov 20 20:26:54 EST 2007 | davef
Peter: The above link to the the picture of the assembly is broken. Comments are: * Yes, RTV is completely useless for applications like you describe. Epoxy is a much better choice. * Dave G, in an archived thread on SMTnet, talks about using 3M Jet
