Electronics Forum: stencil (Page 130 of 540)

Drying SMT Stencils Post Sonic Cleaning

Electronics Forum | Tue Sep 01 03:32:53 EDT 2009 | d0min0

Hi BWET we are using a chamber that can take 2 stencils 29 x 29 blowing hot air from one side takes ~30min @ 40 C to dry - but sometimes up to 45mins BR

Glue

Electronics Forum | Tue Sep 22 08:53:37 EDT 2009 | stepheniii

The only time I ever saw problems with stenciling glue was when one know it all operator was using IPA to clean the stencil. He didn't seem to be able to understand that alcohol was a curing agent for that particular glue. But other than that, as l

TQFN Solder Issues (56 contact) ZF

Electronics Forum | Fri Oct 23 16:54:02 EDT 2009 | pnguyvu

FOR YOUR NEXT RUN CONTACT STEVE @ USA STENCILS INC, HE WILL MAKE ONE SAMPLE FOR YOU - THEIR TEAM HAVE SOLID EXPERIENCE IN STENCIL DESIGN ESPECIALLY PCB WITH CRITICAL COMPONENT. HIS EMAIL IS STEVE@USASTENCILS.COM GOOD LUCK!

Glue on 0402 components

Electronics Forum | Tue Nov 24 23:55:58 EST 2009 | henry_usa_stencils

You can order the glue stencil at http://www.usastencils.com They can design the opening of the apertures on the stencil in the middle of the caps so you can screen an adhesives through the opening then you will have it right on the center of the cap

Gluing Quality Issue !!!

Electronics Forum | Thu Nov 19 01:56:01 EST 2009 | lococost

Thanks dave, We have our problem down to the stencil (printer). We are unaware of any design rules concerning aperatures on glue stencils, does anyone know of any?

GC-PLACE TRAINING

Electronics Forum | Tue Nov 24 23:10:14 EST 2009 | henry_usa_stencils

You can can contact USA Stencil, Inc. at http://www.usastencils.com They are laser cut the solder paste stencils for you and help you learn to create XY CAD Data for your pick and place machine.

Stencil Printer?

Electronics Forum | Wed Nov 11 13:15:23 EST 2009 | reash

What does anyone recommend for a good manual stencil printer as well? This will be used for low volume production. Thanks! Ryan

Stencil Printer?

Electronics Forum | Wed Nov 11 16:42:06 EST 2009 | isd_jwendell

For a manual printer, I like using this one: http://www.lpkf.com/products/rapid-pcb-prototyping/smd-assembly/solder-paste-printing/smt-solder-paste-printer-metal-stencils.htm

Solder void underneath the mosfet

Electronics Forum | Fri Mar 26 03:24:01 EDT 2010 | ravikumarasahitec

Hi, yes we used to see this kind of problem our customer end. This due to stencil aperture opening.these kind of issues we will overcome thorough our stencil process. please contact. ravikumar@asahitec.in

Fine Pitch Printing Issues

Electronics Forum | Wed May 19 16:35:18 EDT 2010 | stepheniii

How thick is the stencil? Also what type of paste? We have a nice little microscope that has gradients on the lens so we can measure whether an aperture is 8 thou or not. Almost always it is but then we buy from a couple of good stencil suppliers.


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