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
Electronics Forum | Wed Feb 11 18:21:39 EST 2004 | Steve
Does anybody know if there is such a thing as individual component paste stencils, and who would sell such an item? The reason I am asking is because we have instances when we build prototypes that we don't need a full stencil. We may only need to pl
Electronics Forum | Wed Apr 21 03:10:37 EDT 1999 | Richard Cooper
To all who will be potentially my salvation, I am currently researching Polyimide stencils for possible use and manufacture. If I may be indulged - with due reference to all past enquiries and notes on the subject - can anyone offer an up to date op
Electronics Forum | Tue Nov 29 12:53:56 EST 2005 | bschreiber
Hello Billy, You are correct when you say that you may want to look at the detergent (chemistry) you're adding to the stencil wash. However, "geared for epoxy removal" depends on how the chemistry is designed to remove the epoxy. If it is a "water
Electronics Forum | Fri Feb 24 08:29:25 EST 2006 | davef
Step stencils are not widely used, due to: * Higher cost as compared to uniform thickness stencils * Danger of solder paste smearing at least close to the steps * Difficulty of cleaning the stepped stencil underside (the steps cannot be on the upper
Electronics Forum | Thu Feb 12 11:41:21 EST 2004 | dblack
Steve, I would suggest you goto our website http://www.dek.com and contact your local stencils office who will be able to help with your requirements. Regards Doug
Electronics Forum | Fri Feb 24 09:20:44 EST 2006 | jdengler
Kenny, Why are you using a step? The components you list could be done with the 7 mil stencil. I would use 6 mil myself but I assume you may need the 7 mil for other components you do not list. Jerry
Electronics Forum | Fri Feb 24 09:24:26 EST 2006 | russ
I agree with Jerry. We don't use 5 mil until we get to .4mm pitch.
Electronics Forum | Thu Feb 23 18:05:53 EST 2006 | kennyg
What are some general guidelines for the minimum proximity of apertures to a stepdown on a stepped stencil. I have a step from 7 mils to 5 (one mil step each on the top and bottom). How far does the step need to extend beyond the apertures on the
Electronics Forum | Fri Feb 24 12:34:13 EST 2006 | Ticky Ticky Tembo No Sarimbo Hari Kari Bushkie Perry Pem Do Hai
Stepped stencils are usually the result of some dumb customer's requirement. 2 examples I can give: 1.) Customer demanded 50% wick-up the termination of a MELF component. No way you can get that from reflow. Played around with a drastic "step up
