Electronics Forum | Fri Jul 30 19:58:28 EDT 1999 | ScottM
| | | Hello Netters, | | | | | | I have a customer who wants us to aquaeos wash a PCB after all operations have been performed. The PWB is two layer FR4 with a Transformer, a Multichip Module with Conformal Coating, (6) 11" insulated wires that are
Electronics Forum | Fri Jun 09 09:52:03 EDT 2023 | tommy_magyar
I agree with Mainteneer on this. Depending on the active components, I would check the datasheets of them. Particular groups of components to pay attention to: microphones, microprocessors, transformers, relays, switches. Washing may be in some cases
Electronics Forum | Thu Mar 25 12:20:21 EST 2004 | Mike Konrad
OK� Nap time�s over! Technically speaking, water soluble flux is just that, soluble in water. Technically speaking, one does not need a saponifier or any other chemical agent to remove water soluble (OA) flux residues. However, one must conside
Electronics Forum | Tue Mar 30 07:34:46 EST 2004 | TONY
We are running double side micro bga boards and we were told to run one side, wash them, put them in the oven at 125c for 1 hour and putting them in the dry cabinet until we run the other side. Is this necessary? It is time consuming for us to wait
Electronics Forum | Wed Mar 27 18:23:01 EST 2002 | kmorris
Does anyone have experience doing conformal coating over Plastic BGA in High-Rel PCB assembly? Is underfill necessary to avoid problems with entrapped air, etc? Our application is a 17x17mm BGA, 256 I/O. We are assembling with a water soluable pas
Electronics Forum | Tue Oct 05 00:10:01 EDT 1999 | karlin
Hi, Help! Could anyone help to enlighten me on this? Question: If I have a CSP/BGA package of size X by Y and the standoff gap between the component and PCB is Z, What is the maximum allowable Y/Z or X/Z that using a normal water clean washing ma
Electronics Forum | Tue Oct 05 13:30:23 EDT 1999 | Debbie Alavezos
| Hi, | | Help! Could anyone help to enlighten me on this? | | Question: | | If I have a CSP/BGA package of size X by Y and the standoff gap between the component and PCB is Z, What is the maximum allowable Y/Z or X/Z that using a normal water cl
Electronics Forum | Fri Aug 05 11:32:29 EDT 2005 | saragorcos
Hi Sandy, Here are some suggestions for an optimum cleaning process for cleaning under BGAs if they are assembled to the board to add to the great tips Shean already listed: - Use a good saponifier w/ DI water - an effective saponifier will be able
Electronics Forum | Thu Feb 10 18:53:04 EST 2000 | Russ
It is okay to use OA flux if you have a very robust cleaning process. lots of water and saponafier are good things. No-Clean is much safer when it comes to reliability. I personally like the Indium no-clean products. Russ
Electronics Forum | Thu May 22 09:06:05 EDT 2008 | davef
While you're waiting for others to reply, consider this posting from the fine SMTnet Archives - http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=17279
.gif)
.png)
