Electronics Forum | Wed Nov 09 07:22:28 EST 2005 | davef
No. Aqueous Technologies, Kyzen, Petroferm, Zestron, Alpha Metals and many more companies have tested their chemical for use with many different production materials and should be able to discuss the effectiveness of their chemical. Beyond that, ma
Electronics Forum | Thu Apr 20 14:59:11 EDT 2017 | davef
It's difficult to tell anything from your picture. But playing the odds, I'd say it's not "gold corrosion." It is very difficult to corrode gold. Gold is a NOBLE metal. From Wikipedia, the free encyclopedia In chemistry, the noble metals are metals
Electronics Forum | Thu Sep 11 16:14:59 EDT 2008 | adamcrum
Our DI system has a carbon cylinder and a mixed bed cylinder. This is from the Mfgr website: "The Technical Devices' Nu/Clean Recirculating Water Deionizing System is engineered to remove all organics, chemicals, and heavy metals via particle
Electronics Forum | Thu Jun 21 18:20:25 EDT 2018 | vinitam
Hello, My company manufactures MLB's and is currently experiences so many voids due to a mistake in direct metallization (shadow line). We have tried testing every chemical component in the line and every possible maintenance. The scrap rate is goi
Electronics Forum | Sat Jun 23 07:34:26 EDT 2007 | davef
This sounds like a form of corrosion called electromigration. It creates cathode anodic filaments. They have a fern like shape because it is a metallic based crystal structure. Electromigration requires: * Difference of electrical potential * Chemica
Electronics Forum | Tue Apr 29 11:21:14 EDT 2008 | patrickbruneel
Verizon Supports Telcordia's Position on the RoHS Directive. New legislation known as "RoHS" (Reduction of Hazardous Substances) bans certain chemicals and metals from some electronic manufacturing. In order to maintain high and predictable network
Electronics Forum | Thu May 01 13:58:14 EDT 2003 | bremerg
Gentlemen, Does anyone have any failure information on IRC, CHP2-100-R500F (5 OHM, 2W, 1%) resistors. We have experienced two failures on the same circuit board where the metalization on the component separated from the component causing an open ci
Electronics Forum | Thu Dec 12 07:37:13 EST 2002 | davef
Immersion plating appears like electroless, sorta, but is different chemically. Plating is converting metal ions in solution to metal on the board. Those metal ions are "converted" by adding electrons to them. The source of these electrons defines
Electronics Forum | Sun Aug 29 19:17:34 EDT 2004 | aqueous
Chen, It is always best to place one�s effort on determining the cause and content of the residue rather than trying to work around it. The first thing you must determine is the nature of the residue. Is it flux? In many instances, the residue is
Electronics Forum | Sat Sep 30 14:50:35 EDT 2000 | Elfego
Thanks for your replay,The line should be capable of making 200pc boards by hour 600 components by pc board,placing chips 0402 and IC's 144 pins 20 mils, also has to work 24 hours a day and 12 hrs saturdays and Sundays. these are products for the aut
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