Electronics Forum: ionic (Page 36 of 42)

Need help with no-clean specs

Electronics Forum | Wed Sep 30 13:42:56 EDT 1998 | Chrys

Hello, I've been evaluating a bunch of wave solder fluxes and found one that is absolutely perfect. I'm so excited I can't wait to switch over. Unfortunately, I have to assure reliability, and the only test I have in-house is ionic contamination

Re: Cleanliness Testing/Conformal Coating

Electronics Forum | Mon May 10 15:17:37 EDT 1999 | C.K.

If I clean my assembly and find no visable contamination with the unaided eye, do I need to do cleanliness testing prior to conformal coating? More than likely, you're okay if you can't see any contamination with the unaided eye. However, the

Re: Cleanliness Testing/Conformal Coating

Electronics Forum | Tue May 11 07:50:52 EDT 1999 | Graham Naisbitt

If I clean my assembly and find no visable contamination with the unaided eye, do I need to do cleanliness testing prior to conformal coating? Douglas, It is highly advisable to test for ionic contaminants because a coating seals in as well as

Re: DE-IONIZED WATER SUPPLIERS

Electronics Forum | Sat Sep 11 03:44:40 EDT 1999 | Brian

1 MOHM, 18 MOHM)? What state are you located? What type of volume will you use (1 drum per week, month, year)? Mike (800) 218-8128 We are located in Illinois (Southwest Suburb of Chicago). Our usage will prob

Wave soldering vertical mini-dins

Electronics Forum | Mon Nov 08 09:45:29 EST 1999 | John Burris

Having a big problem waving these puppies, hope someone can help. I've got an 8 pin mini-din connector (like a PS/2 connector with two more pins) that has two mounting pins on each side. During wave, at least half the lot has shorts from the ground p

Re: Anti-solder finishing

Electronics Forum | Mon Feb 07 13:26:14 EST 2000 | Dave F

Spacerwoman: Carol is a professional spacer problem fighter (we think). When people have problems with spacers, they call on SPACERWOMAN!!!!! Here she is to save the day � ;-) Selecting a spacer made of brass is a good choice for many applicatio

Re: Question on ESD Smocks

Electronics Forum | Tue May 16 20:59:46 EDT 2000 | Dave F

Ashok: Haven't unloaded that ESD Coordinator job yet have you? Smocks: Don't work, they're hot, and no one likes them, but they put up with them (sort of). Now if they knew they didn't work, all the customer PR in the world wouldn't help. The bi

Re: Solderability of BGA and PCB

Electronics Forum | Mon Nov 27 19:32:02 EST 2000 | Michael Parker

Prof. Whoopee - amazing facts that you find on your 3-D BB, it has completely confounded my comrade, Chumley. Plainly spoken that around the SF Bay Area a.k.a. Silicon Valley(ever hear of the famous SF Fog?)during the winter months, near the coast a

IC Contamination

Electronics Forum | Mon Oct 22 17:37:51 EDT 2001 | davef

I�m aware of no such standard. There may be something in Euroland [ie, IEC, etc.] TM-650 �Test Methods Manual� has procedures for measuring various types of contamination, such as: * 2.2.25 �Detection Of Ionizable Surface Contaminants� * 2.2.27 �Cl

changing from no-clean to clean

Electronics Forum | Wed May 22 08:43:40 EDT 2002 | pjc

I have experience cleaning NC for military boards. The reason for cleaning the NC is due to conformal coating requirements. Zestron Vigon A200 and Atron AC 100, as well as Petroferm Hydrex DX have both been effective at cleaning Alpha UP78 NC paste.


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