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 | Mon Nov 29 16:04:47 EST 2004 | Terrapin Station
They are actually diamond impregnated tips. The tip can be cleaned using a special jig. this will extend the life. these nozzles are from a machine platform dating back to 1997. The RSS can last for 1,000,000 cycles. SA and MA are similiar but requi
Electronics Forum | Fri Dec 17 14:13:18 EST 2004 | Claude_Couture
I have done this several times in order to save my butt: adding liquid flux in a jar of not so fresh paste, stirring it slow for 2-3 minutes, to make it usable. Of course, use no-clean flux for no clean paste, etc. During one production slow-down,
Electronics Forum | Fri Jan 21 13:39:15 EST 2005 | Chunks
Directors and company owners care since they're buying it. It's like an odometer on a car - just an indicator. But like your chipshooter example, moving parts on an oven wear out too. They just don't stop working. Plus they're subjected to higher
Electronics Forum | Thu Jan 27 11:23:45 EST 2005 | russ
Well first off I wouldn't evaluate paste for a wave process. I would use solder bar instead. Flux - top side fillets and no shorting on the solder side, does it clean well after processing if using water soluble flux. How wide is the process win
Electronics Forum | Thu Mar 31 23:14:18 EST 2005 | Steve
Russ if your asking me if covering the surface of the granite defeats the purpose then I'm lost. An ionizer is a very good suggestion but they are not inexpensive. If the table is grounded and the metal bars are on a grounded mat, laminate etc. then
Electronics Forum | Wed May 04 12:36:06 EDT 2005 | bschreiber
Hello Frank, Just a quick note regarding the use of your Smart Sonic Stencil Cleaning process for cleaning PCBs; if the boards are populated, some components my require an ultrasonic rinse with DI water as ultrasonics will deliver the wash solution
Electronics Forum | Fri May 27 12:09:59 EDT 2005 | saragorcos
You do want to be very careful with potentially entrapped organic materials as they are prone to causing electrical leakage failures particularly around sensitive devices. There is a new clenliness testing tool available that tests a localized area
Electronics Forum | Mon May 30 11:37:01 EDT 2005 | stepheniii
I don't know this machine but I have seen a similar problem on other machines. Have you cleaned and lubed the guide rods for the x-axis? It's easy to forget that AOI machines do need some maintenance. Is it possible that it hangs, while waiting for t
Electronics Forum | Thu Jun 16 09:13:46 EDT 2005 | russ
We use a 5 mil for 16mil pitch QFPs, Make sure that the stencil has been polished. Type 3 paste. We have used lead free no-clean, lead no-clean, and water soluble lead pastes for these packages. We set the printer for a slow stroke .7 in/min. wi
