Electronics Forum | Fri Oct 31 18:08:34 EDT 2008 | m79d
thank you both for the input ok so i understand the hole is on a 5mmx5mm center the pin seems to be 3mm. About 3mm of the board goes under the clamp rail so the tooling strip must be wider than 5mm as the fiducial also needs to be on it. Mark_m yo
Electronics Forum | Fri Jan 06 13:47:15 EST 2012 | davef
Your starting [and finishing] point should be IPC-7351B Land Pattern Calculator and Tools - http://landpatterns.ipc.org/default.asp For more, look here: * http://www.smtnet.com/bob-willis/pbdai.html * http://www.onboard-technology.com/pdf_novembre
Electronics Forum | Thu May 10 16:17:59 EDT 2001 | davef
I am unaware of any industry standard for specifying apertures for SM stencils. I am aware of IPC-7525, Stencil Design Guidelines. You can obtain it from IPC [http://www.ipc.org]. Further, it seems like there is an article on stencil design ever
Electronics Forum | Fri Apr 27 11:26:53 EDT 2001 | pteerink
Check out IPC SM-785 Land pattern guidelines for SMT www.ipc.org Phil
Electronics Forum | Thu Apr 26 18:39:45 EDT 2001 | jagman
I'm looking for information (links) to pad design and layout spec's for different sized passive SMD's. To be specific, 0603, 0805, 1206 and 3216 sized parts. I'm most interested in finding out about land spacing between two parts. What is accepabl
Electronics Forum | Thu Oct 26 14:41:33 EDT 2000 | Derek Vanditmars
We are planning on replacing a SMT 100Pin QFP with a COB module that will have two dies that are functionaly equivalent to the old part that will not be available. Questions: 1)Suggestions on substrate material FR-4 or something better? 2)Are there d
Electronics Forum | Tue Feb 02 10:56:53 EST 1999 | Justin Medernach
| Would anyone have experience or information on where I could find pad geometry for tantalum capacitors that can be surface or plated thru hole mounted. | Yup, Check out IPC-782. That's got all the info on land geometries that you'd be looking f
Electronics Forum | Wed Aug 10 02:38:36 EDT 2016 | zxcvb
I guess I've been somewhat ignorant when it comes to the finer details of pcb layout. Lately I've read a couple of books that try their best to lead me on the straight and narrow. Here is a couple of examples of a recent board of mine, and I have hig
Electronics Forum | Wed Nov 08 14:28:39 EST 2000 | Finepitch Services
the current design must be a die-up one, so routing for a flip-chip on board will be a bit difficult. it almost HAS to be wire bonded, to me...
Electronics Forum | Tue Mar 10 11:32:01 EST 1998 | Richard
Hello, I know nobody asked, but here are my 2cents on the newer, more comercialized layout of the forum. I frequent many of the SMT/Assembly forums and the ones I prefer to stay with are the ones that are NOT comercially oriented. Not having comercia
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