Electronics Forum | Wed Aug 10 07:55:21 EDT 2005 | ajaydoshi
we are using heareous F381, F352 no clean solder paste. specially in qfp for high frequency board we observe that cleaing / removing of ' no clean flux 'is require. if we do not clean same most of time after all test & envioumental test it shows pin
Electronics Forum | Fri Oct 19 11:51:25 EDT 2007 | rgduval
By definition, no clean solder can be not-cleaned. The solder/flux are formulated to result in low ionic-contamination, hence, no cleaning. I have, however, always had at least one customer that requests their no-clean solder get cleaned. No-clean
Electronics Forum | Wed Jun 16 08:56:34 EDT 1999 | Vic Lau
Do anyone have any experience on assembling high frequency product, 1.8GHz or 2.4GHz. In our production line, we manufacture 1.8GHz product with using no clean paste (RMA type) for reflow and no clean wire for rework. In our functinal test,either a
Electronics Forum | Sun Jul 29 21:23:27 EDT 2001 | nifhail
When carry out the contamination test,do we measure for Chlorides on water soluble and No-clean fluxes? 1) What is the equivalent factor for machines developed to test the board cleanliness, Omega-meter vs Ionograph vs Zero-ion. 2) What values do we
Electronics Forum | Mon Jul 30 21:03:44 EDT 2001 | davef
You should specify the level of res based on the effect of the res on the end-use of the product. J-STD-001 defines cleanliness requirements for ALL flux types, including water soluble and no-clean that you mention. 1 There is no equivalency betwee
Electronics Forum | Wed Aug 30 23:45:28 EDT 2000 | Ramon I Garcia C
Hi friends; Steve I'm using flux Kester 959, my top temperature is 187 celcius degrees, my e-mail is ramigary@smtnet.com, Travis I'll check the pcb for contamination, but how may I clean the pcb? may I use alcohol? Nance I cleaned the pipes of the
Electronics Forum | Sat Mar 27 12:36:34 EST 1999 | Scott Cook
| 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 talk' of
Electronics Forum | Mon Oct 06 16:18:30 EDT 2003 | pjc
If the flux is already eating thru Cu it must have been some time since the boards were soldered with the OA flux. Ionic contamination testing (with OmegaMeter or IonoGraph)can be done to find contaminated boards and cleaning the boards can be done
Electronics Forum | Sun Feb 01 18:24:52 EST 2004 | Dean
Ok, maybe I'm missing something here: It's a no clean flux type AND your going to wash it? Why not migrate to OA Flux and just run DI water with Ion-Exchange beds? Benefits: No need for ultrasonics No need for chemical isolation No need for cleani
Electronics Forum | Fri Jan 08 12:27:55 EST 2016 | aqueous
The most common method is a R.O.S.E tester. They have been around for 30 years and are an industry standard for ionic contamination (flux and other residues) testing. Manufacturers include: Zero Ion www.aqueoustech.com Omegameter / Ionagraph http:/
