Electronics Forum: f43 (Page 1 of 1)

Microscreen stencils

Electronics Forum | Mon Nov 28 20:51:26 EST 2005 | davef

Se�or Tech We use stencils from other suppliers. So, we have no specific problems from Microscreen. Generalizing, most stencil manufacturers recommend that their product not be exposed to temperatures in excess of 110*F (43*C). Our old buddy B S

Metal foil is pulling away from the screen.

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

Re: stencil epoxy debonding

Electronics Forum | Tue May 02 14:19:26 EDT 2000 | Bill Schreiber

There are two primary causes of epoxy adhesive bond failure, heat and over exposure to moisture. Ultrasonic cavitation is a only a mechanical "scrubbing" action on a microscopic level. However, if the adhesive bond is week or has small areas of det

Low VOC stencil cleaning fluid

Electronics Forum | Wed May 21 19:43:05 EDT 2003 | billschreiber

Hello Carl, Thank you for the feedback. You are absolutely right. I was remiss in not addressing the other questions. 2. 440-R SMT Detergent will clean RMA and No-clean solder pastes in 1 � 2 minutes using ultrasonics at ambient temperature and 5

Metal foil is pulling away from the screen.

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

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