Electronics Forum | Tue Mar 09 14:23:03 EST 2010 | zanolli
Hello SMTnetters We have a unique application requiring cleaning of an aggressive OA flux. A vapor degreasing process or the immersion of the parts in boiling solvents has some process advantages over an ultrasonic aqueous process. These advantages
Electronics Forum | Tue Mar 09 14:53:16 EST 2010 | davef
Resistivity Of Solvent Extract [ROSE] is a bulk ion contamination [BIC] test method. It should thought of as a process control tool used to assess ionic contaminants. Don't consider it an acceptable tool for establishing 'GO-NOGO' limits. The stan
Electronics Forum | Tue Jul 10 18:03:49 EDT 2001 | pzohbon
Does anyone have a recommendation for a cleaning solution used in an ultrasonic cleaner for cleaning RMA solder paste off stencils and adhesive off pcb boards. I am going to be evaluating Armakleen 2001, Zestron Vigon SC 200, and Aqueous Technologies
Electronics Forum | Tue Jun 24 14:47:25 EDT 2008 | bschreiber
There is also an article in the March 2007 issue of U.S. Tech magazine that reviews ultrasonic cleaning technology for PCBs titled "Reducing the Cost of Misprinted PCBs". The information is also relevant to post reflowed PCBs. A PDF copy of the art
Electronics Forum | Thu Jun 25 20:01:54 EDT 2009 | davef
Shanelo Technologies Given that isopropyl alcohol [IPA] is produced by combining water and propene. How does soaking a board in water and a flammable liquid drive off water?
Electronics Forum | Mon Apr 25 02:25:32 EDT 2005 | Mike Konrad
The issue of using ultrasonic technology for post reflow de-fluxing presents challenges in two categories: Controversial: Although there are recent studies that indicate acceptance with ultrasonic technology on populated assemblies, there remains si
Electronics Forum | Tue Jul 01 21:40:04 EDT 2008 | davef
Vapor degreasing systems * Thermal Equipment [Baron-Blakeslee]; Torrance, CA; thermalequipment.com * Exselect Engineering; Concord, ON CAN; exselect.com * Branson Ultrasonics; Danbury, CT; bransoncleaning.com * Greco Brothers; Providence, RI; grecob
Electronics Forum | Mon Jul 24 15:10:37 EDT 2006 | carln
Here are some additional comments that have been posted on the CircuitNet web site: Fist, the answer is the same regardless of the specific paste type, (leaded or non-leaded). High pressure sprays should never be applied to a stencil. Stencils are
Electronics Forum | Thu Sep 06 10:34:21 EDT 2001 | Mike Konrad
Hi Jeff, Sean is correct. Although ultrasonic technology will work in post-reflow de-fluxing applications, you will receive concerns regarding ultrasonic �damage� to wire bonded components. Much has been written to combat this belief but the conce
Electronics Forum | Wed Aug 19 17:53:17 EDT 2009 | aqueous
This is not a common method of defluxing. Vapor degreasers were the top choice pre-1989 but have given way to spray-in-air defluxing technology. Here come of the vapor degreaser manufacturers: Detrex http://www.detrex.com/ Baron Blakeslee http://
