Electronics Forum | Thu Nov 02 17:15:48 EST 2006 | Mike Konrad
Asoe, The systems you are describing are Resistivity of Solvent Extract (ROSE) Testers. These systems are available using one of two technologies, Static or Dynamic. Both systems use a calibrated test solution comprised of IPA and DI water. The t
Electronics Forum | Wed Feb 04 21:06:07 EST 2009 | shan
I'm looking for test labs in Taiwan that are capable of performing ionic contamination testing on small to medium sized SMT boards. I'm interested in both ion chromatography and ROSE test methodologies. Is anyone aware of any labs performing contami
Electronics Forum | Thu Jan 02 12:15:10 EST 2003 | Mike Konrad
Richard, With respect to the Resistivity of Solvent Extract (ROSE) test, the test solution is exceptionally aggressive. With the Zero-Ion for example, the test solution�s resistivity is 150 M-Ohms. Additionally, because test solution is made up of
Electronics Forum | Thu Sep 17 12:00:19 EDT 1998 | Mike C
| | I need an evaluation process to prove to a customer that our no-clean process does not leave excessive residue? Any ideas? | Wayne: More of the same as Chry and Justin. | KEY ISSUE | The first thing that you need to know is: What does your cus
Electronics Forum | Mon Aug 19 11:36:27 EDT 2019 | bulur
How does no-clean flux residues on a PCB assembly impact the ROSE testing? Does no-clean flux residues on the PCBA dissolve in solution of ROSE tester and increase ionic contaminants level in terms of NaCl per surface area? Is ROSE tester solution (a
Electronics Forum | Fri Jan 25 15:51:26 EST 2013 | johng
Water soluble process, yes. The machine is old and fixed at 4 ft/min by someone way before me. Looking into ways to reverse that to allow for adjusting the conveyor. Trying to determine how the contamination gets onto the boards. So far testing has i
Electronics Forum | Tue Apr 13 14:49:15 EDT 2010 | davef
90%) from the sample, and the bake time and temperature specified herein are minimums. To improve test accuracy, or to prevent heat damage, other bake parameters may be AABUS. 2 Applicable Documents IPC-QL-653 Certification of Facilities that Inspect
Electronics Forum | Thu Jan 29 16:10:09 EST 2004 | blnorman
Another equipment manufacturer is Smart Sonic. Most equipment manufacturers have their own chemistries, but they are also willing to use other cleaners. What we have done is to send boards that need to be cleaned to the equipment manufacturer. W
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 | Wed Dec 15 10:37:55 EST 2004 | gopinath A
Thanks Dave, That answers my question. I didn't think either that the qty of gold in platings would be enough to contaminate the solder pot. I wanted to make sure that leach test is a valid test for gold finishes. Gopinath@mcl.com
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