Electronics Forum: step stencil (Page 1 of 33)

step stencil design

Electronics Forum | Sat Aug 22 16:16:13 EDT 2015 | davef

Comments are: * Read “Challenges for Step Stencil Printing” [Carmina Lantzsch, Georg Kleemann, LaserJob GmbH] http://www.smtnet.com/library/index.cfm?fuseaction=view_article&article_id=2096 * I want to say that IPC7525B [Oct 2011] improved the dis

step stencil design

Electronics Forum | Fri Aug 21 09:36:50 EDT 2015 | esoderberg

Looking for better design information than is contained in IPC 7525A. Specifically the minimum trough width and length of the step to achieve the necessary paste reduction.

step stencil design

Electronics Forum | Thu Aug 27 16:44:11 EDT 2015 | esoderberg

I have that article. While some of the information is helpful, there is no direction as to the length and width of the step to achieve blade deflection to reduce paste.

patchwork stencil

Electronics Forum | Thu Jun 23 10:06:10 EDT 2011 | davef

Leave it to the Eurolanders to come-up with a goofy, confusing name for something simple. Stepped stencils are chemical etched or laser cut. IPC-7525 provides guidelines on designing stepped stencils. Look here http://www.ipc.org/TOC/IPC-7525.pdf

patchwork stencil

Electronics Forum | Tue Jun 21 17:30:26 EDT 2011 | semiconjt

> Has anybody have eperience with stepped ( down and up )laser cutted stencils? >> What is manufacturing method of "patchwork" stepped stencils ?? Thanks Jacek Tomaszewski SEMICON Sp.zo.o -Poland

patchwork stencil

Electronics Forum | Wed Jun 22 11:38:21 EDT 2011 | SBecmpe

I have purchased step up and down stencils for specific situations. What do you mean by "Patchwork"? Is this a rework process?

patchwork stencil

Electronics Forum | Wed Jun 22 18:52:56 EDT 2011 | semiconjt

tTo explain what I mean...sorry for my bad Engilsh... please find short " patchwork stencil" description from EPP Europe. http://www.epp-online.de/europe/-/article/16537487/15944614/Innovators-of-laser-processing-technology /art_co_INSTANCE_0000/max

Squeegees for Step-Down stencil

Electronics Forum | Mon Nov 25 12:32:20 EST 2002 | davef

Now that is a BIG step. Stencil type: * A metal squeegee is fine with stepped stencils. * A rubber squeegee is fine with stepped stencils. Comments on step stencil "keepouts" are: * Use an ample space around the stepped down component pads that is

stencil cleaning

Electronics Forum | Thu Apr 11 19:12:11 EDT 2002 | djarvis

Sorry fellas -disagree. We only clean our stencils in the ultrasonic machine at the end of the run. If the same pcb is up the next day we clean them by hand. We use Electrolube SSS and the used rolls from the in line under stencil cleaner. Wipe the

Step stencil troubles

Electronics Forum | Fri Sep 17 03:25:45 EDT 2004 | soease

Hi all, does anyone of you use step stencils for paste application? Did anyone experienced troubles with those kind of stencils? thanks for answer sly

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