Electronics Forum | Fri Sep 07 04:19:59 EDT 2018 | spoiltforchoice
You have lost me, its a stencil, you can change the aperture size, you can change the thickness and you can change the walls of the aperture. And all of those things will be in the papers anyone can find with a google. I have no clue what safe air g
Electronics Forum | Fri Sep 07 11:46:29 EDT 2018 | dleeper
Air gap on the PCB is determined the pad spacing which in turn is governed by the component. As long as the PCB designer is following the typical BGA layout best practices; i.e no open via in pad, non-solder mask defined pads, solder mask covered tra
Electronics Forum | Mon Aug 12 21:54:33 EDT 2019 | davef
I've never seen successful printing with a step as deep as you seem to be saying. The keep out would have to be jigundous!!!! SMTnet Technical Library: https://smtnet.com/library/files/upload/Step-Stencils-laserjob.pdf I'd guess * Maximum step
Electronics Forum | Wed Feb 09 12:28:58 EST 2005 | Valerie
We have been pretty successful with screen printing glue, however the smallest component we now glue is a 0805. We had many problems using our Gemini II to put down glue dots for a 0603, so we altered the pads to do double-side reflow. As our own int
Electronics Forum | Thu Dec 08 03:18:51 EST 2005 | khp_armin
Please give me some guidelines on designing Stencils for Fine Pitch.
Electronics Forum | Fri Aug 20 10:49:37 EDT 2010 | cobar
Article to assist with Stencil Design Guidelines http://shanelo.co.za/technical_paper_about_stencil.htm
Electronics Forum | Wed Jan 22 16:17:27 EST 2003 | slthomas
Ya know, I got that thing because I was told, once upon a time, that besides some typical low density passive bottom sided stuff, we'd eventually be building products with SOJ's and QFP240's on both sides and short of hand dispensing big tall gobs of
Electronics Forum | Wed Dec 13 20:22:37 EST 2000 | Dave F
George We use a 0.030" dot. Here's a link for aperture sizes for adhesive printing from Alpha. http://www.alphametals.com/products/techarticles/soldrpstncl/guidelines.html Here's a link for aperture sizes for adhesive printing from Heraeus. http:/
Electronics Forum | Wed Dec 14 06:10:24 EST 2005 | tk380514
some of th IPC design guidelines have helped my factory understand the importance of stencil, (before me they used 9 year old guidelines) carzy i know, if you are interested in stencil design then listen to what everyone else has been saying however,
Electronics Forum | Wed Jun 12 08:04:40 EDT 2002 | davef
Consider: * Searching the fine SMTnet Archives * Buying IPC-7525, Stencil Design Guidelines
