Electronics Forum: laser cut stencils (Page 31 of 54)

Mask Fiducial Problem

Electronics Forum | Wed Jan 25 07:24:31 EST 2017 | emeto

Hi, I used black marker before and it will works for a while, but it is not a permanent solution. Ask stencil house what kind of material and process they use to apply the black material. I think this operation might be done manually after the stenc

Solder balls

Electronics Forum | Mon Nov 18 04:04:43 EST 2019 | ramesh_10377

hi initially, as per PCB design and gerber file of PCB we got 5 mil stencil, during process observed lot of solder balls (70-80%), then we decided to go for 4 mil stencil with c-cut. now the problem is reduced and still solderball exists which is a

Stencil design for flex-rigid PWB

Electronics Forum | Fri Sep 17 09:31:33 EDT 2004 | C Lampron

Hi Chris, It sounds like you may have to go with your idea of a relief cut into the stencil. Are there any components that need to be printed in close proximity? Is this a high volume?I used to work at a flex house and we had a similar situation. We

Polyimide Stencil Vendors

Electronics Forum | Fri Jun 18 12:40:09 EDT 2010 | stepheniii

Are you talking about mini stencils for individual components? If so we check here first http://www.circuitmedic.com/products/stencils.shtml I think circuit medic only has ones for parts they have done repair work for. Their selection is a bit unu

Re: non-metal stencil

Electronics Forum | Thu Sep 28 16:07:31 EDT 2000 | Chris

Try A-Laser at 503-641-9428 and speak with Ahne Oosterhof. For fine pitch tiny aperturtes, they are the best.

Re: chem etching - Used For What?

Electronics Forum | Wed Aug 05 13:09:01 EDT 1998 | Dave F

We are looking for chem etching equipment. Does anyone know where I can find chem / laser systems? John: What is your planned end-use of such a system? 1 Making labels / labeling parts 2 Making SMT stencils 3 Something else

.5mm BGA

Electronics Forum | Fri Feb 20 13:55:32 EST 2004 | black5629

That will depend on so many factors: solder type / flux type sphericity of balls in paste stencil type (laser chem etch, electro form etc.) print paramaters I will tell you that it can be done.

This looks interesting (Mydata Jet Print)

Electronics Forum | Wed Oct 19 08:31:50 EDT 2005 | Erik

They said arround 300.000 USD :) I guess thats a good printer and a used stencil laser. Greetings Erik

Stencil Fiducial Repair

Electronics Forum | Fri Jul 10 08:37:26 EDT 2009 | cyber_wolf

If they are under filled fids, take heavy duty two part epoxy and mix it with carbon powder from your copier. Use a razor blade to carefully trowel it in. We now use laser etched fids. They are much better.

Fine Pitch Stencil Design

Electronics Forum | Thu Dec 08 08:22:58 EST 2005 | grantp

Hi, How fine pitch are you going? What kind of stencil printer are you using? We had a manual stencil printer and needed to print 1-mm pitch BGA and needed to go to laster cut and electro polish at 4 thou to get good paste release. We also went 1:1

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