Electronics Forum | Mon Apr 07 13:26:25 EDT 2003 | billschreiber
Dear Yukim, You may want to make sure that your presolder cleaning processes will support the change to a new flux. Many chemistries are vertically oriented and will clean only a selected few types of solder pastes. If you find that a new cleaning
Electronics Forum | Thu Mar 04 18:48:17 EST 2004 | Roger
Hi Robert, We've been using a SmartSonic cleaning system for years. We place a lot of 0402's and FBGA components. The system cleans those apertures very effectively. The chemistry used in the cleaning solution is very safe and environmentally fri
Electronics Forum | Thu Oct 07 12:14:14 EDT 2004 | bschreiber
The pre-solder cleaning of misprinted PCBs can be a completely different experience from a post-solder application. While the paper that DaveF references is excellent, you may want to read the paper by Richard S. Clouthier, "SMT Stencil Cleaning: A
Electronics Forum | Mon Nov 22 15:40:38 EST 2004 | Bill Schreiber
Hello Brent, I recommend that you read an article by Richard Clouthier, "SMT Stencil Cleaning: A Decision That Could Impact Production." It originally was published by EP&P. We keep a copy of it on our web site: http://www.smartsonic.com/article1.
Electronics Forum | Wed Jul 11 13:55:26 EDT 2007 | bschreiber
We have received several e-mails and phone calls regarding the Permali recommendation of cleaning Durostone pallets so I thought I would address these questions on the forum for everyone's benefit. Q: Can 440-R SMT Detergent be used for manual clean
Electronics Forum | Mon Feb 18 13:54:38 EST 2008 | bschreiber
Most stencil manufacturers use an automated stencil inspection system like our StencilScan AOI that compares the Gerber data directly to the stencil image. We provide the StencilScan AOI system to end users that wish to guarantee stencil / screen an
Electronics Forum | Wed Oct 14 13:52:59 EDT 1998 | Bill Schreiber
Dear Sanjay, An important issue involved when stencil printing adhesives vs. solder paste is: How do you clean the stencils after printing? Do you need two machines? Two chemistries? Two waste streams? What are the potential environmental impacts an
Electronics Forum | Wed Jun 24 16:45:18 EDT 1998 | Bill Schreiber
| I know this topic has probably been talked about before...But I ran into a small situation where Solder Balls were appearing in large quantities on the PCB....the Problem has been isolated and taken care of, my question is, what are some good metho
Electronics Forum | Sat Feb 12 20:02:04 EST 2005 | Mike Konrad
As for specific recommendations, I�ll defer to �real users�. But here are the usual suspects: Aqueous Technologies http://www.aqueoustech.com (909) 944-7771 Ultrasonic Smart Sonic http://www.smartsonic.com (818) 610-7900 Ultrasonic PMR http://www
Electronics Forum | Thu Nov 12 12:13:21 EST 1998 | Bill Schreiber
No appologies necessary, it looks like wayne@att beat me to it! Seriously, there is an article in the current November issue of Circuits Assembly magazine: "Surface-Mount Stencil Cleaning" by Nick J. Lester. From talking to Mr. Lester, I know he ha
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