Electronics Forum: stencil (Page 268 of 540)

TOOL MANAGEMENT

Electronics Forum | Mon Jan 05 22:02:53 EST 2004 | davef

Check this thread for background on stencil life: http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=6510

LGA design

Electronics Forum | Wed Feb 11 08:04:16 EST 2004 | autissier

I'm looking for input from anyone who has experience assembling the LGA package on PCBs. Design, stencil opening, or other requirements are welcoming

Component stencils

Electronics Forum | Mon Feb 16 05:45:45 EST 2004 | mk

Have you thought about ssd? Boards already have the paste on them when they come in. www.sipad.net

.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.

Testing potential employees.

Electronics Forum | Tue Feb 24 08:57:28 EST 2004 | VE

From my experience, stencil thickness should be determined by your minimum component lead pitch and squeegee pressure will be determine by the type of squeegees you are using. Best method of checking whether or not your screen printer is set up and

Testing potential employees.

Electronics Forum | Tue Feb 24 09:00:32 EST 2004 | VE

Oops... Left out your original question.. Give them an actual scenerio that you already know the answer to, and let them tell you what the best stencil thickness and squeegee pressure should be. Grade them on their answer.

DEK Printers

Electronics Forum | Fri Feb 27 09:48:56 EST 2004 | pjc

DEK can take the 20x20 frame with an adapter. Stencil image is center justified. Contact DEK for p/n and price for adapter.

DEK Printers

Electronics Forum | Fri Feb 27 09:53:23 EST 2004 | kauer

Hey, I just got off the phone with DEK. A 20 by 20 stencil will not drop right in, they do make a fixture so you can use a 20 by 20. Call DEK at 908-782-2363 talk to Ron. Later

DEK Printers

Electronics Forum | Fri Feb 27 12:06:03 EST 2004 | jseagle

A 20 x 20 frame with the image centered will drop in IF you have a printer with adjustable rails for the stencil, the rails move in and out to accomodate 29 x 29 to smaller than 20 x 20. Otherwise, you will need the adapter. James

Stencil Storage

Electronics Forum | Mon Mar 01 11:08:07 EST 2004 | adlsmt

We have used them for 6 years now. No issues. The frames are not universal so you need to pick one vendor. IIT has done a great job for us and the standard turn is 2 days for laser cut for $150.00.


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