Electronics Forum | Fri Oct 19 13:04:14 EDT 2007 | brulal1
Thank Rob those are our own product, try few test by not clean some PCB never had any issue except on compoment under faraday cage. Did you know any norm that could persuade my boss and the R&D department that cleanning no clean is a waste of time. T
Electronics Forum | Tue Sep 17 15:59:48 EDT 2002 | Randy V
No-Clean fluxes are difficult to clean off boards. Cleaning effectivness depends on the washer, the chemistry, the flux type, number of reflows, and the time between reflow and washing. White residue is flux residues that have started to break down b
Electronics Forum | Thu Sep 26 13:35:28 EDT 2002 | jersbo
Thanks to everyone who posted! I did get the boards clean and it worked well I used AIMTERGE 520A about 5% in HOT water.. I soaked for 10 minutes used a brush(handscrubber type)to loosen the residue. For the fine pitch I used a fine bristled small
Electronics Forum | Thu Jan 16 15:16:52 EST 2003 | Mike Konrad
You are comparing apples to oranges. No-clean fluxes, because they are designed not to be cleaned off after reflow, contain very low solids. Normally, no-cleans have a solids content of 2% - 5%. Your basic RMA has a solids content of 15% to 30% (s
Electronics Forum | Mon Mar 07 15:41:50 EST 2005 | John M
Is anyone aware of standards which would identify the clean room requirements for the wire bonding process ?
Electronics Forum | Fri May 27 17:34:51 EDT 2005 | Sm Rookies
Thanks for your replies.
Electronics Forum | Wed Sep 04 23:55:10 EDT 2002 | jersbo
aight... Ive read the SMT archives... Ive got issues,,, 25 boards WS boards with NC on them HOw do I clean them? Used Everkleen in Prewash and wash in a dishwasher , cleaned most of the NC flux off but I have residuals. especially on the fine pitch
Electronics Forum | Mon Dec 06 12:27:01 EST 2004 | Scott B
We are currently reviewing a design which has a leadless chip scale package with a solder thermal pad on the underside. The application notes for the device specify use of a no-clean solder paste as the gap under the device will prevent cleaning. Is
Electronics Forum | Fri Dec 15 11:06:06 EST 2006 | Gman
Hello All, Is Ionic Cleanliness testing using say an Ionograph on No-clean assemblies a valid test? If not, why? I understand factors like PCB cleanliness but is the 1.56ug/in2 IPC criteria valid for no-clean assemblies and can an Ionograph be used
Electronics Forum | Fri Oct 26 07:41:26 EDT 2007 | bbl
We recently changed to an Amtech no clean paste and flux that is washable. So far excellent results. Far superior to the water soluable paste we were using. Fewer solder balls, longer life in printer, boards can be left up to 5 days and still come