Electronics Forum | Wed Jan 22 15:22:53 EST 2003 | davef
Hey "Dispenser Boy" does this mean we can have your machine? ;P I'll be out to supervise the packing with a Hook in my hand. Poke around the fine SMTnet Archives to get started on aperture design. 7525, Stencil Design Guidelines is pretty much of
Electronics Forum | Thu Feb 15 17:08:34 EST 2018 | davef
IPC-7525A - Stencil Design Guidelines http://www.ipc.org/TOC/IPC-7525A.pdf
Electronics Forum | Mon Oct 09 19:56:41 EDT 2000 | Dave F
CJ: Arturo and the others make good suggestions. Consider: IPC-7525 Stencil Design Guidelines
Electronics Forum | Tue Jan 16 21:00:11 EST 2001 | davef
Two good sources of information are: 1 IPC-7525 Stencil Design Guidelines 2 SMTnet fine Archives [once the guys get them back up and running after the conversion is complete]
Electronics Forum | Fri Aug 30 17:43:34 EDT 2002 | davef
Search the fine SMTnet Archives to get started. We use 'glue' 'epoxy' 'adhesive' [without the ' of course] interchangeably.
Electronics Forum | Mon Dec 16 13:33:09 EST 2002 | pjc
square apertures provide better paste release than round in most applications. See IPC 7525 Stencil Design Guidelines
Electronics Forum | Wed Apr 23 22:06:46 EDT 2003 | davef
Download it from IPC.org. About as a fast as you can get. They overnight it to you, also.
Electronics Forum | Sat Sep 18 08:26:10 EDT 2004 | davef
Carol: If you would have problems both covering the via and keeping mask from the BGA pads, maybe you via are too close to the pads. Maybe some of the IPC pad design guidelines would help.
Electronics Forum | Tue Jan 31 15:44:08 EST 2006 | John S.
We're looking at lead free surface finishes for some of our products. On one supplier's site, I found a note that tenting vias on ENIG boards can lead to the black pad phenomenon. How does this compare to your design guidelines and experience? Than
Electronics Forum | Sat Nov 03 09:29:17 EDT 2007 | davef
IPC-9701, SMT Solder Joint Reliability Qualification and Performance Standard is an update of D-279, Design Guidelines For Reliable SMT PCA that includes BGA and PbFree
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