Electronics Forum: stencil (Page 128 of 540)

Stencil Thickness

Electronics Forum | Wed Jun 27 21:16:20 EDT 2007 | rfrog

5 mil will treat you just fine. Do some research on stencil area ratio and aspect ratio if you ever reduce your aperture sizes any further.

PB and PB Free on same screen printer

Electronics Forum | Tue Oct 23 14:24:04 EDT 2007 | ratsalad

Who is your stencil vendor? I've used three different vendors for Pb-free green frame stencils and NONE of them charged extra.

Stencil Printing: Single pass vs. Double pass

Electronics Forum | Wed Dec 19 16:53:41 EST 2007 | flipit

Double pass printing for solder paste is not needed and will cause defects. Redesign your stencil thickness or aperture sizes, change your paste mesh size or type, go to 45 degree blades.

BGA 0.5mm pitch Ball 0.3mm assembly and soldering.

Electronics Forum | Wed Dec 26 14:21:47 EST 2007 | gersla

I am looking for suggestion of BGA 0.5mm pitch Ball 0.3mm (BGA 8x8mm)assembly and soldering. Stencil thickness? Stencil reduce? Etc.

Stencil Storage Solutions

Electronics Forum | Fri Jan 18 16:17:18 EST 2008 | adlsmt

Bliss is not exactly cheap, I will conceed that. I assume you are using framed stencils? Switch to QTS frames and buy the foils. You will save enoguh to buy a Mig welder and make your own storage cart!

DEK Horizon Underside Stencil cleaner

Electronics Forum | Wed Jan 30 21:56:47 EST 2008 | rayjr1491

On the DEK Horizon there are two options for underside cleaning one is a foam cleaner and paper cleaner that advances. The Foam cleaner cleans using liquid but does not increment and foam piece and can be washed but there are still contaminents. We h

Stencil Design Question

Electronics Forum | Thu Feb 14 12:44:48 EST 2008 | operator

Don't worry about the paste print. Just omit it from the stencil. Mask over all the SMT components after reflow with water washable WSOL masking. Then run it thru the wave to deposit the solder. Then wash to remove masking. Or you could manually run

What is a good budget screen printer ?

Electronics Forum | Tue Jul 15 00:26:22 EDT 2008 | chrno522

I would like to get a good stencil printer that fit the full size 29" stencil frame.. either used or new .. Any suggestion? Thanks in advance.

Solder balls

Electronics Forum | Mon Jul 28 06:13:35 EDT 2008 | cobar

Your problem is being caused by to much paste being printed.Reduce apeture size on stencil. http://www.shanelo.co.za/technical_paper_about_stencil_de.htm or http://www.shanelo.co.za/SMD%20Assist.htm

Missprint PCB cleaning

Electronics Forum | Tue Aug 12 13:22:17 EDT 2008 | bschreiber

A copy of the IPC-7526 "Stencil and Misprint Cleaning Handbook" is available as a free download at: http://www.smartsonic.com/article.html Regards, Bill Schreiber Smart Sonic Stencil Cleaning Systems www.SmartSonic.com


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