Electronics Forum | Fri Sep 04 08:49:04 EDT 1998 | Ben Salisbury
| | | | | | | | We�ve been thinking again and need your help in sorting through an issue related to deionized (DI) water cleaning of assembled boards. | | | | | | | | THE BACKGROUND: The water reclaiming systems goes: gross filter, fine filter, car
Electronics Forum | Thu Mar 25 19:29:07 EST 1999 | Graham Naisbitt
| | Hi, | | I have a customer who's electronic assemblies produce RF. He is insisting upon aqueuos cleaning. We switched to a no clean solder years ago and no longer have an aqueous system. | | Is aqueous cleaning necessary to eliminate 'cross ta
Electronics Forum | Mon Mar 29 19:31:29 EST 1999 | Scott McKee
| | | Hi, | | | I have a customer who's electronic assemblies produce RF. He is insisting upon aqueuos cleaning. We switched to a no clean solder years ago and no longer have an aqueous system. | | | Is aqueous cleaning necessary to eliminate 'cr
Electronics Forum | Fri Nov 28 04:46:45 EST 2003 | gregoryyork
Best to establish what type of residue is causing this problem and then stamp it out.Speak with SCOPE Labs who offer PCB extraction followed by IR and IC work. So many problems with porous resist at present and NON ionic materials that you really nee
Electronics Forum | Thu Mar 29 08:52:59 EDT 2007 | realchunks
Hi George, Depending on your product, wave soldering twice is not all that bad. Residues will be higher, but should only be cosmetic unless your product is sensitive to ionic contamination. You can set-up an alternate profile on your wave for 're-
Electronics Forum | Tue Jan 29 13:51:24 EST 2008 | bbarton
Dave F....BOGUS BOGUS BOGUS What compatability issue could there possibly be if the flux is removed during wash???? Why on EARTH would you leave ANY WS flux residue on the board? A recipie for disaster! Beef up the cleaning process, test for contami
Electronics Forum | Mon Feb 18 15:47:42 EST 2008 | ck_the_flip
In theory, no clean flux residues are electrically benign...period. Here's a good test. Subject the board to some moisture/humidity, and have your circuit designer ohm-out any areas that may be affected by conductive material. Option B: Have a la
Electronics Forum | Mon Oct 22 17:37:51 EDT 2001 | davef
I�m aware of no such standard. There may be something in Euroland [ie, IEC, etc.] TM-650 �Test Methods Manual� has procedures for measuring various types of contamination, such as: * 2.2.25 �Detection Of Ionizable Surface Contaminants� * 2.2.27 �Cl
Electronics Forum | Thu Sep 17 12:22:43 EDT 2009 | babe7362000
I was hoping someone could help me on this issue. We currently have this customer that needs their board extemely clean. We have tried many cleaning solutions at no end. We used an ionic cleaner still did not work. Their test is very tight and I w
Electronics Forum | Fri Sep 04 09:51:34 EDT 1998 | Dave F
| | | | | | | | | We�ve been thinking again and need your help in sorting through an issue related to deionized (DI) water cleaning of assembled boards. | | | | | | | | | THE BACKGROUND: The water reclaiming systems goes: gross filter, fine filter,
