Electronics Forum | Tue Sep 07 20:21:31 EDT 1999 | armin
| | We are changing over to a No-Clean paste soon and l was wondering how other people tackle the issue of stencil and PCB cleaning in high-volume production. | | | | The paste we are using is Cobar 325RX and its pretty sticky stuff let me tell you!
Electronics Forum | Mon Jun 11 22:06:00 EDT 2001 | davef
The issue is not the cleanliness of your in-bound water. The issue is the cleanliness of the board your customer receives. Look at J-STD-001C, Para 8, "Cleanliness Requirements". The end product cleanliness is the end result of your: * In-bound
Electronics Forum | Tue Jul 24 20:16:13 EDT 2001 | davef
We don't believe that water is thin enough to clean a uBGA. Given your telecom biz, what cleanliness standard do you use? How do you measure it? And how often do you check it? What are your in-bound materials cleanliness standards? [Oooo, I gues
Electronics Forum | Wed Sep 12 20:46:16 EDT 2007 | Mag10
We've configured SMT and Wave lines such that each line can run either No-Clean and Water soluble process. As we are doing cleanliness study, an observation is there may be cross contamination when we share the Rework benches or PCB trays between No-
Electronics Forum | Mon Jan 22 22:37:27 EST 2001 | davef
50 ppm oxygen was on half joints reflowed in air. 3d Human factors PCB pad cleanliness: Handling of bare board pads creates excessive voiding. Print rejection: Cleaning of OSP pads with acetone or isopropanol increases voiding.
Electronics Forum | Tue Aug 23 09:02:12 EDT 2005 | Bob R.
There are several methods in IPC-TM-650 depending on whether you're testing for the effect of flux residues or board cleanliness. They're available for free download here: http://www.ipc.org/contentpage.asp?PageID=4.1.0.1.1.6
Electronics Forum | Tue Apr 12 15:50:14 EDT 2011 | cstev112
New to using Ion Chromatography (IC)testing to understand cleanliness of PCB. I've been informed that one method to monitor is to use R/O/I. What is R/O/I?
Electronics Forum | Mon Nov 14 02:30:50 EST 2016 | edmaya33
Just wanted to ask what is the correct test method i need to do to ensure that my cleaning solvent is still OK to use. This is in particular for stencil cleaning,carriers, pcb etc. I am using a jet cleaner with recirculating solvents.
Electronics Forum | Tue May 21 15:16:16 EDT 2019 | emeto
Voiding usually is caused by oxidation/impurities on the plating of part and or PCB. I know it is gold, but did you run any analysis for cleanliness of part plating? Couple of pictures will help everyone.
Electronics Forum | Sat Jun 13 07:08:46 EDT 1998 | Dave F
| Is their an IPC standard for the water that is being used in the water wash. I have been looking and at this time have not found any thing. Steve: A lot of the old command and control specification environment has changed with the "industrializati
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