Electronics Forum | Mon Jun 25 11:33:20 EDT 2012 | davef
The immersion silver is an active surface and readily combines with sulfur from the environment. Silver sulfide tarnishes the surface and creates doubt about the integrity of the finish at inspection. [uyemura.com/library-4.htm] Your customer's boar
Electronics Forum | Mon Jun 25 03:52:24 EDT 2012 | awtm
Our Customer had detected tarnished pad on ImAg PCBA and had conducted several SEM-EDX test at the soldermask below some of the chip resistors. High concentration of sulfur was found and it can be significantly reduced after further chemical cleaned
Electronics Forum | Thu Jan 17 14:52:17 EST 2008 | gnath
All, Can someone help find a source for purchasing interleaving/packaging paper for Immersion Silver boards (sulfur free + ph neutral ..). Thank you!
Electronics Forum | Wed Dec 14 10:19:56 EST 2016 | jaktechie
Hello, I am new to this forum but I have a question. We use an Orbotech Discovery Ultra to inspect our photo-tools. We currently use this lint free paper as a contrast material underneath the phototool since the vacuum bed on the AOI is black and ou
Electronics Forum | Fri Dec 13 16:39:42 EST 2002 | Gris
Hi, Look for papers on SMTA there are a lot of papers on lead free rework. If you dont find any let us know here I am sure you will receive many. Here are a just a few http://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=%22lead+free+rework%22&
Electronics Forum | Thu Jun 29 12:07:09 EDT 2017 | georgetruitt
HOW THICK IS THE BOARD? IS THERE A LOT OF COPPER IN THE BOARD? DOES YOUR CUSTOMERS PROVIDE HEAT RELIEF IN THE BOARDS BARREL DESIGN THERE NEEDS TO BE PLENTY OF ROOM FOR LEADFREE SOLDER TO FLOW, DID YOU CHECK YOUR PIN(LEAD)TO HOLE (BARREL) RATIO? N
Electronics Forum | Thu Apr 20 11:18:06 EDT 2000 | Russ
C.K. I would like to receive the paper that you wrote, I am in process of implementing VOC free at our factory and could use all of the information that I can get. Thanks Russ
Electronics Forum | Wed Apr 19 13:32:51 EDT 2000 | C.K.
Dave: The main part of your machine that VOC-Free fluxes attack is your spray fluxer itself. If you haven't already, you'll need to purchase a spray fluxer that's designed to accomodate water-based VOC-Free fluxes (i.e. made of stainless steel with
Electronics Forum | Fri May 27 13:01:05 EDT 2005 | c111
Well if I thought using wood tools was a good idea I would not have posted the question. Since the flash point of paper is 451F I would assum wood would be close? I guess I should have asked does anyone know of any tools kits or come up with there ow
Electronics Forum | Tue Nov 29 10:32:30 EST 2005 | slthomas
Sure, industrial development is a valid rationalization for theft. :P I'm sorry, but taking money out of someone's pocket to advance your own capability is not justifiable. These guys didn't write these books to give them away any more than Microso
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