Electronics Forum | Sun Apr 05 18:59:15 EDT 1998 | Graham Naisbitt
Jaqueline There are so many variables in the electronic assembly manufacturing process involving more than 12 different chemistries, that it is impossible to easily identify and determine the nature and reason of such residues. GEC Hirst Research in
Electronics Forum | Wed May 28 06:44:15 EDT 2003 | iman
Mario, Hi, basic point about all quality systems, is the cost justified? Traceability is just one aspect coverage in the quality system. As a pointer, is your diploma project research might focus and narrow down into tracability in high-end product
Electronics Forum | Thu Dec 08 07:55:16 EST 2005 | davef
Your understanding of the situation is correct. In both cases, you solder to the nickel. The gold [Au] protects the nickel from oxidation. When soldering, the gold moves into solution in the solder and forms an intermetallic compound [IMC] with th
Electronics Forum | Wed Feb 08 03:44:28 EST 2006 | fctassembly
Hello Amol, I continue to be amazed at the surprise engineers have on discovering that a non-eutectic alloy such as SAC305 displays micro-cracking and rough joints in a soldering process. There was a reason the electronics industry chose to use eutec
Electronics Forum | Fri Mar 24 05:12:17 EST 2006 | Rob
You feeling OK Larry, I'm almost agreeing with you! Right, ROHS & WEEE are designed so that we don't throw away huge amounts of electronic waste into landfill that then pollutes our drinking water with Lead, polybromides, cadmium, mercury etc, which
Electronics Forum | Mon Apr 30 00:06:56 EDT 2007 | grantp
Hi, I can understand the problem of export from the US to Syria, as we are not US based, however almost all our components are supplied by US based companies, and are from US based manufacturers such as Analog Devices, National Semiconductor, ST Ele
Electronics Forum | Mon Jun 11 16:40:17 EDT 2007 | mlb
Dear GR, I represent Kyzen Corporation and would like to address a couple points in your message. Both Kyzen and Zestron are global suppliers of engineered cleaning fluids for removing flux residues from electronic assemblies. Aqueous cleaning fl
Electronics Forum | Tue Mar 14 07:59:41 EST 2000 | JAX
Emmanuel, The discussion on what finish to use whether it be HASL, Immersion gold over nickel, Organic Solderability Preservatives, ect...... is still ongoing. This is not the only decision you need to make. Do you plan on Soldermask Defined Pads? Wh
Electronics Forum | Tue Mar 14 21:22:41 EST 2000 | Dave F
Bingo!!! By panelizing and adding breakaway rails (as Nancy says), Stuart can pour copper up to his board fab's tolerance from the board edge. Traditionally, he just wants to make sure no copper shows on the edge of the board. Then again, it's his
Electronics Forum | Fri Mar 10 09:01:44 EST 2000 | Wolfgang Busko
Hi John, we had one shot with silver coated PCBs. With "no clean" and no changes in process parameters ( we had no input on necessary changes from the boardhouse ) we encountered wetting problems in the first reflow soldering process. Later it was s
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