Electronics Forum | Tue Jul 31 13:55:27 EDT 2001 | mparker
Maintain DI water to 18 Meg Ohms resistivity. You can go down as low as 2 Meg ohms, in a pinch, but I would caution on what type of board you are running if trying to clean on 2 Meg ohm. Anything that is running an RF or high frequency circuit could
Electronics Forum | Tue Sep 21 21:19:59 EDT 2021 | demradarmfg
Yes, and while it did, its been around longer than we have had any sort of process engineers. While the package naming scheme, or lack there of, is a mess. I am mostly curious if there is any other identifiers or naming conventions besides specific m
Electronics Forum | Wed Aug 31 08:13:55 EDT 2011 | rway
Unless they are using a contract mfg to build the boards for them, in which case I would request they still clean them, at a price.
Electronics Forum | Tue May 20 08:25:26 EDT 2008 | davef
Well something is different isn't it? * Paste * Part supplier * Board fabrication * Was the profile that you reference the measured temperature or the the settings keyed into the oven? The cross sections seem to show less than expected ball collapse
Electronics Forum | Mon Jun 09 06:37:42 EDT 2008 | roc2x
Hi, After reflow process we do Automatic inspection and after that direct to 5DX machine to check all the solder joints and we detected it at 5DX inspection. This card havent go to any testing.
Electronics Forum | Fri Aug 26 10:10:14 EDT 2011 | blnorman
IPC just released IPC-CH-65B which gives a lot of guidance regarding the cleaning process. It addresses the processes, chemicals, well worth getting a copy.
Electronics Forum | Tue Sep 21 20:58:11 EDT 2021 | avolovich
Your Mydata should have come with a myriad of preprogrammed packages, specifying height (ex. 0805-05, 0805 components with height of 0.5mm).
Electronics Forum | Mon May 24 09:59:47 EDT 1999 | Cunli Jia
The SMTnet Career Center is currently being redesigned so that individuals, employers, and recruiters can all post directly to it. Right now is a good time to let us know what features you would like to see added, such as how to keep individual's ano
Electronics Forum | Tue May 20 06:00:33 EDT 2008 | roc2x
Im qualifying a new PCB. I run 2 diff supplier. Supplier A has Zero failure. Supplier B has 4 failure all having Lifted PAD on Bga same location and same location pads that lifted. How can I prove that the PCB have problem? Input : Both run in same o
Electronics Forum | Sat Aug 27 09:17:17 EDT 2011 | davef
We assume from the way you wrote the posting that we're talking about bare boards delivered from your fabricator. If that's the case, the best way to clean these boards is to tell your supplier to clean the boards before sending them to you. You shou
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