Electronics Forum | Mon Dec 06 10:53:42 EST 1999 | Ron Lahat
Our CEM running No clean process on our PCBAs Should we verify that he is using the Deionized water rinsing or is it a default in the process ?
Electronics Forum | Mon Dec 06 11:49:52 EST 1999 | John Thorup
Ron - no clean = no water, de-ionized or otherwise. What you should determine is if no-clean is suitable for your end product (it likely is) Certain high frequency, high reliability, low level, environmental, or other conditions might suggest a wash
Electronics Forum | Wed Nov 09 10:08:42 EST 2011 | julien
Hello all, We have an old batch cleaning machine in our production and we use isopropanol alcohol during the rinsing process probably to lower the surface tension. Right now we are looking for a new machine who can do a better job compare to the ol
Electronics Forum | Fri Nov 11 01:48:05 EST 2011 | julien
Thanks guys, But for the cleaning process we already have a chemical product to clean flux residues and other contaminant. But it seems that we can't rinse properly under low stand-off components and we find trace of our chemical under some ceramic c
Electronics Forum | Mon Nov 14 10:46:48 EST 2011 | dyoungquist
Have you tried an ultrasonic water cleaning process? We use an ultrasonic cleaner with tap water and Omega Aqua Clean LPH cleaner (omegasonics.com) then rinse with DI water. However, our cleaning requirements are not as strict as yours are from the
Electronics Forum | Thu Nov 10 10:45:32 EST 2011 | aqueous
The use of IPA in automated defluxing systems is nearly extinct for the following reasons: 1. IPA is flammable. In a spray-in-air environment, the already low flashpoint is even lower. 2. IPA is not a great solvent. There are specific containme
Electronics Forum | Fri Nov 11 13:52:05 EST 2011 | SheanDalton
What is the size of the low standoff components you find trace wash effluent? and, what is the gap from the board to the underside of the component? If your component has a very low standoff, and/or, a wide footprint, you may want to consider findi
Electronics Forum | Fri Nov 11 07:48:58 EST 2011 | julien
Sure it's big enough! But unfortunately we can't go this year because we have an important customer who come at our plant at this perdiod :-( Probably next year or at SMT in nuremberg...But also it's not only defluxing oriented and only in german.
Electronics Forum | Thu Nov 10 10:42:55 EST 2011 | davef
While you're waiting for others to reply, search the fine SMTnet Archives for similar threads. For instance: * Batch cleaners http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=49334 * Use of IPA as a cleaning agent http://www.smtnet.com/Foru
Electronics Forum | Mon Nov 14 01:46:12 EST 2011 | julien
We already have contact with Zestron and we try several chemicals and process (Immersion, aspersion, vapor degreasing). And we always find something under low standoff component. Concerning the flow pressure and shadowing, we try different position
