Electronics Forum: coating 1

Bubbles on solder joint(after conformal coating curing)

Electronics Forum | Mon Dec 28 09:12:56 EST 2009 | kpm135

@tommyg_fla According to the TDS the recommended coating thickness for Humiseal 1B31 is only 1-3 mils so if I had to guess I would say your issue might be that you're re-coating over the first pass too soon. All the solvent hasn't evaporated and the

Recommended Paint Spray Gun for Conformal Coating?

Electronics Forum | Wed Mar 25 20:00:32 EDT 2009 | davef

We are not sure what you mean by "any type like plastic, aluminum, stainless steel etc?" Binks [(US Corporate Offices), ITW Industrial Finishing, 195 Internationale Blvd., Glendale Heights, IL 60139; 630-237-5000 888-992-4657 http://www.binks.com] m

imm. silver

Electronics Forum | Fri Aug 30 16:25:21 EDT 2002 | davef

Imm silver holds-up to multiple thermal cycles very well. The things, we guess, are happening to make imm silver tough to solder after heating and sitting are: * Oxidation of the silver. * Reduction of the co-deposited organic anti-tarnish [used in

Solder wave

Electronics Forum | Mon May 07 11:09:49 EDT 2007 | davef

4 Fluxer Operation 4.1 Set-Up and Check-Out the Fluxer 4.1.1 Spray Fluxer Set-Up and Check-Out Pass a sample unsoldered board through the machine. Remove the board just after passing through the fluxer and the air knife.

Au Plating

Electronics Forum | Tue Jun 04 17:10:13 EDT 2002 | davef

First, �flash gold� is very loose language. It means different things to different people. �Flash� gold is a thin coat of immersion gold. Imm gold self-limits at ~0.3um[12uin]. And fabs put-down �flash� prior to electroplating thicker gold for wi

Gold Surface Finish on PCB's

Electronics Forum | Wed Dec 14 07:34:33 EST 2005 | davef

Mike Ozzy If I came to your house, I wouldn't punch you. I'd make you buy me beer. Vern Solberg; Tessera Technologies Inc., 3099 Orchard Dr, San Jose, CA 95134; 408 568 3734 F408 894 0768 vsolberg at tessera dot com. If that doesn't work try: Tes

Re: Mil-P-28809

Electronics Forum | Fri Oct 08 02:19:01 EDT 1999 | Brian

| Is anyone aware of a web page for military spec's? I am looking for Mil-P-28809. | | Thanks, | Mike Demos | MIL-P-28809 is definitely obsolete. Not only obsolete, it was possibly the most scientifically flawed standard ever to to be printed. I

Lead free profile

Electronics Forum | Thu Jan 27 15:13:26 EST 2005 | jbrower

Hi Tom, Thanks for the compliment. I've been researching and planning for the time that my company would go lead free since late in 1999. I hear you there, how do we know that the component is lead free. Baring a leap of faith with your vendors, I


Electronics Forum | Mon May 14 17:12:20 EDT 2001 | davef

Continuing along the path that Brian took ... IPC-7525 gives design guideline for stepped stencils. It goes something like: * Stepped area SB GT 25 thou from pads located on the greatest thickness of the stencil * Pads in stepped area SB GT 35 tho

Re: Solder mask materials and equitements wanted

Electronics Forum | Sat Aug 29 08:43:35 EDT 1998 | Dave F

| Hi, Friends, | Could you please recommend me some solder mask materials and equitements for high quality solder mask? Details such as company name, phone numer et al are welcomed. Thanks! | Have a good day | Xingsheng Xingsheng: Consider the follo

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