Electronics Forum: stencil (Page 127 of 540)

Invar Stencils

Electronics Forum | Thu Mar 15 10:11:27 EDT 2007 | cecil

Just finished using my first Invar stencil. Gotta say I was very reluctant at first but my stencil vendor convinced me to give it a shot. I have to admit that I am pretty impressed. I would have normally used an electroformed stencil for the prototy

double printing

Electronics Forum | Wed Mar 21 17:08:34 EDT 2007 | iit

The biggest problem with double printing is that if the squeegee pressure and speed are correct, the stencil apertures are already filled with paste. Printing again can force paste between the bottom of the stencil and the top of the board creating

LGA Processing

Electronics Forum | Thu Mar 29 21:47:41 EDT 2007 | davef

PCB land to part land ratio - 1:1 Stencil aperture size - 1:1 with PCB land Stencil aperture shape - same as PCB land

BGA Re-ball

Electronics Forum | Wed Apr 04 12:27:59 EDT 2007 | adrian_nishimoto

We reball hundreds of BGAs a week with the RB-2000 kit from Mini Micro Stencil, Inc. The reball stencils are made of stainless steel and can be used over and over again. We have reballed .5mm pitch parts with .012" balls up to 2400 ball BGAs.

MLF / QFN Lead Free Shorting

Electronics Forum | Mon Apr 09 07:48:58 EDT 2007 | realchunks

Hi Chris, So you run eror free for 2 years, then change stencil aps and get problems. Why would you go smaller? Try using your old stencil with your no-lead.

ARE DEK ELA UPGRADES POSSIBLE?

Electronics Forum | Tue Apr 17 19:01:46 EDT 2007 | dedwards

I have a DEK ELA without any automated stencil cleaning. Can a stencil cleaning option be added to this machine?

Anyone using DEK VectorGuard stencils?

Electronics Forum | Wed May 02 22:40:59 EDT 2007 | KEN

What is your opinion of this frameless system? How long have you had your system? How many cycles on your stencils? Any issues you are not happy with? How is storage working for you? Any issues with cleaning?

mpm

Electronics Forum | Mon May 21 22:15:34 EDT 2007 | seb1970

Does anyone know where i can purchase a frame/stencil adapter for the MPM manual stenciler in Ohio? Preferably a air adapter. And also spare parts? Thank you for your help.

Stencil Thickness

Electronics Forum | Mon Jun 18 02:15:20 EDT 2007 | pavel_murtishev

Good morning, 5mil stencil or less would be appropriate. We deal with 0402's daily and 5mil works. BR, Pavel

Stencil Thickness

Electronics Forum | Mon Jun 18 10:02:26 EDT 2007 | dyoungquist

5mil should work fine. Some stencil manufacturers charge more if you go less than 5mil so stick with 5mil.


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