Electronics Forum: how to remove mmismt test (Page 1 of 2)

How to remove paint from back of PCB without damaging ?

Electronics Forum | Sat Jul 09 11:31:14 EDT 2005 | techvet99

I have several circuit boards (about 14" by 16" in size) that I recently acquired and am trying to repair. One problem is that the former owner painted (spray paint I think) the word "TEST" in big red letters covering most of the solder side of the

Saponifier needed to stop

Electronics Forum | Sat Oct 06 08:32:09 EDT 2001 | davef

Mr. Wizard is not currently available. You get the wizzer. Maybe your dream date will show later. Get your own lab tests done. Show your potential customer that your boards are clean. That�s the issue. The issue is not how you go about cleaning

How to choose a new solder paste

Electronics Forum | Thu May 26 08:52:42 EDT 2011 | davef

Phil Zarrow wrote a useful paper that could help in evaluating paste. Here read it ... Evaluating Solder Paste � Not An Option Contributed by Phil Zarrow of ITM an Independent SMT consulting firm With soldering being the dominant source of assembly

Re: To clean or not to Clean??

Electronics Forum | Sun May 30 18:52:35 EDT 1999 | Graham Naisbitt

I have always thought it to be a good practice to wash SMA's with water soluble paste (WS609) soon after reflow. Is there a time limit as to how long a board should sit after reflow before washing said board? For instance; processing a

Re: To clean or not to Clean??

Electronics Forum | Mon May 31 15:09:56 EDT 1999 | JohnW

I have always thought it to be a good practice to wash SMA's with water soluble paste (WS609) soon after reflow. Is there a time limit as to how long a board should sit after reflow before washing said board? For instance; processi

Re: To clean or not to Clean??

Electronics Forum | Mon May 31 15:10:14 EDT 1999 | JohnW

I have always thought it to be a good practice to wash SMA's with water soluble paste (WS609) soon after reflow. Is there a time limit as to how long a board should sit after reflow before washing said board? For instance; processi

How to protect shrouded header when potting a PCBA

Electronics Forum | Tue Sep 10 17:40:14 EDT 2013 | caurbach

Let me start off by saying that although we pot a decent variety of products, we have never been asked to do something like this, so this is not based on personal experience. This is just my gut talking here. I suppose you could use some sort of ca

Re: Is it possible to rework this BGA socket?

Electronics Forum | Wed Jan 06 23:49:48 EST 1999 | Chris G.

Hey All you Einsteins out there!! I gotta' problem...('course you do Steve, or you wouldn't be bugging the TechNet now would you?) I had a phone call from a acquaintance of mine wanting to bring two prototype boards over to rework a BGA socket

Re: Is it possible to rework this BGA socket?

Electronics Forum | Wed Jan 06 21:17:31 EST 1999 | Dave F

Hey All you Einsteins out there!! I gotta' problem...('course you do Steve, or you wouldn't be bugging the TechNet now would you?) I had a phone call from a acquaintance of mine wanting to bring two prototype boards over to rework a BGA socket

Re: How to qualify the solder flux of a new vendor?

Electronics Forum | Wed Nov 17 11:20:23 EST 1999 | Dave F

Hey Gyver: If you don�t mind (which you don�t have any choice about, because I�m going to do it anyhow, cause it�s MY word processor), I�m going to respond genericly, but still be directed to your question. Much of the following is paraphrased from

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