Electronics Forum: stencil (Page 129 of 540)

Land Grid Array (LGA) Rework

Electronics Forum | Tue Sep 09 14:49:13 EDT 2008 | ksrsr

We get our component stencil for this type of rework from Mini-Micro Stencils. We use a Air-Vac rework station and we have no issues at all.

Stencil Design

Electronics Forum | Tue Sep 16 21:52:19 EDT 2008 | rayjr1491

10x16 by 5 mil stencil gives me a area ratio of .615 unless I am calculating incorrectly. I will try and attach some images tomorrow. By reducing the Y direction my area ratio s below .6 and I thought this was not advisable. Your help is muc appreci

Stencil Cutters

Electronics Forum | Wed Nov 19 13:16:07 EST 2008 | floydf

Hi, we are a low volume high mix contract shop. My boss wants me to investigate getting the necessary equipment to make our own stencils. Would anyone know a good source for this type of equipment? Or any thoughts about getting into this process. Tha

Stencil Cutters

Electronics Forum | Wed Nov 19 13:25:14 EST 2008 | slthomas

You should set up a tour of a respectable stencil manufacturer and take your boss with you. My guess is it'll change his tune immediately.

Stencil Cutters

Electronics Forum | Thu Nov 20 07:23:22 EST 2008 | hussman

The process materials alone will cost you more than a half dozen stencils. Not to mention the labor involved. Then the cost of all the equipment involved? Jeez, how do people like this make it to power?

Stencil Cutters

Electronics Forum | Thu Nov 20 10:59:39 EST 2008 | elias67

Don't forget the value of being able to blame everything from bridging, solder balls,tombstoneing , traffic jams, the price of gas, the demise of the american auto industry and everything else on your stencil supplier. That would now be you!

Stencil Design

Electronics Forum | Wed Jun 03 15:28:24 EDT 2009 | mrduckmann2000

Try Fineline Stencils, they help us all the time. They are the experts at what they do, they will help you with stncil thinkness, app sizes and the ratios needed for a great print.

DEK Stencil image offset?

Electronics Forum | Fri Jul 17 09:12:00 EDT 2009 | azhiker

thanh, It has a pullrod. I will order the stencil as you suggested, center and I'll just offset it with the pullrod. Thanks for your input!

DEK Stencil image offset?

Electronics Forum | Fri Jul 24 02:57:05 EDT 2009 | fede

I use Center Edge, and adjust stencil offset. It's very easy, you just have to give it the PCBs width. An other advantage is that If your PCB has scrap strips, and you lose them, or PCB changes, you can print it anyway.

Finding a white strand on fine pitch components

Electronics Forum | Thu Aug 20 13:01:40 EDT 2009 | bman

When I've seen white strands in the solder on SMT boards, it's been fibers from stencil wipes that stuck to the stencil, then transfered to the board when it was printed. I'm not sure why this would only happen with fine pitch components though.


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