Electronics Forum | Mon Feb 19 11:46:56 EST 2001 | bphilips
We use an ultrasonic stencil cleaner (not Smart Sonic) and have problems with stencils falling apart. The metal foil is pulling away from the screen. Is this a common problem with ultrasonic stencil cleaners?
Electronics Forum | Mon Feb 19 13:49:44 EST 2001 | markkrmp
Bill, It is my understanding that in using the Smart Sonic to clean Adhesives from stencils and mis-printed boards it is recommended to have the system up to a certain heated temperature. What is that recommended temperature? Does this temperature
Electronics Forum | Wed Feb 21 09:44:02 EST 2001 | markkrmp
Bill, Are you recommending the heat range of 95-100F (35-38C)to clean stencils with the Smart Sonic using the 440-RT SMT Detergent? The reason I am asking is were are looking at potentially the Model 2003 to clean our paste stencils and our adhesive
Electronics Forum | Wed Feb 21 14:40:44 EST 2001 | billschreiber
Hello Mark, As with any cleaning process, there are a number of variables that will affect the cleaning of adhesives with a Smart Sonic Stencil Cleaner: brand of adhesive, concentration of cleaning chemistry, temperature of wash solution, etc. Both
Electronics Forum | Mon Feb 19 14:17:21 EST 2001 | bschreiber
Hi Mark, If you are a user of stencils, you already know that there are literally hundreds of stencil manufacturers out there. If you found one that will allow such hot temperatures, I would be interested in learning who it is. However, I have only
Electronics Forum | Mon Feb 19 13:04:17 EST 2001 | billschreiber
The ultrasonic frequency used in today�s stencil cleaners is usually a 40 kHz �sweep� frequency (also used on semiconductors and other sensitive cleaning applications). This frequency is not low enough to cause stencil damage (the lower the frequen
Electronics Forum | Tue Jan 29 09:16:51 EST 2013 | jagriffin
Can you give me any more information on how they take heat differently? Do they get hotter? Pull heat away from the PCB? Heat more even and pull heat away from the surface? Thanks, June
Electronics Forum | Sat Oct 28 10:24:56 EDT 2000 | Ben
Try to insert thin copper plate (approx. 1.5mm thk) at the end of the flow direction. Place it approx. 2mm away from the lead. The copper will pull away the solder & thus minimise bridging problem.
Electronics Forum | Tue May 28 17:02:46 EDT 2002 | dougt
I've had problems with this in the past, pretty sure it was due to age. Had a couple of old reels of dummy parts that would not allow for any type of stretching of the cover tape. I have also seen where the cover tape appears to shrink and it pulls
Electronics Forum | Fri Jul 23 06:48:23 EDT 2004 | mattkehoe
I am actually getting opinions that point to contaminated copper under the HASL finish. We've seen some "fish eyes" where the HASL is pulled away from the copper exposing a pin hole of copper that can be seen through the HASL finsh. We are planning o
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