Electronics Forum | Thu Oct 02 21:00:26 EDT 2003 | davef
Who says the chlorine comes from your tap water? Our PTOW dumps boat loads of chlorine into our water periodically. Sometimes it's so bad you can smell it. We doubt that it is the source of your problem. This chlorine will volitize very quickly,
Electronics Forum | Sun May 21 09:38:25 EDT 2006 | davef
Epoxy Removal and IC Delidding [Hardware Hacking: Have Fun While Voiding Your Warranty, Chapter 14] Encapsulation of critical components using epoxy or other adhesives is commonly done to prevent tampering and device access (the microprocessor shown
Electronics Forum | Thu Jun 26 20:54:08 EDT 2008 | davef
As pointed-out above, the downside of telling your supplier how to perform a process can create problems: * It sets the cost of the operation ... I did what you told me to do * Materials selected may be incompatible ... I did what you told me to do *
Electronics Forum | Mon Apr 19 15:45:21 EDT 2010 | dwonch
Thanks to all for your input. We did have a third party do an analysis on boards from the first shop. They were shipped directly from the board shop to eliminate the possibility that we could contaminate them. The third party (Forsite) did find Sili
Electronics Forum | Wed Aug 11 09:51:11 EDT 1999 | Brian
| | | Easy goods-in polymerisation check: clean, white, cotton cloth: wrap it round a suitably gloved finger and pour a few drops of methylene chloride (! toxic) onto the end of the finger and rub it onto the bare board for a minute or so. If it come
Electronics Forum | Tue Feb 06 18:19:30 EST 2001 | davef
Now that's surprising that your board fabricator would say the mask was cured properly [without even inspecting the boards]. I wonder if they can backup those BOLD words when testing your boards with the webbing problem. The reason you can�t find t
Electronics Forum | Mon Jul 30 21:03:44 EDT 2001 | davef
You should specify the level of res based on the effect of the res on the end-use of the product. J-STD-001 defines cleanliness requirements for ALL flux types, including water soluble and no-clean that you mention. 1 There is no equivalency betwee
Electronics Forum | Thu Sep 30 03:37:26 EDT 1999 | Brian
| We are all faced with increasing interconnect density in all we do. This means smaller everything, especially components and that which they are mounted upon but, hopefully, without smaller minds and thoughts. It all demands more process control an
Electronics Forum | Fri Oct 01 00:18:18 EDT 1999 | Earl Moon
| | We are all faced with increasing interconnect density in all we do. This means smaller everything, especially components and that which they are mounted upon but, hopefully, without smaller minds and thoughts. It all demands more process control
Electronics Forum | Fri Oct 01 09:03:25 EDT 1999 | Dave F
| | | We are all faced with increasing interconnect density in all we do. This means smaller everything, especially components and that which they are mounted upon but, hopefully, without smaller minds and thoughts. It all demands more process contro
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