Electronics Forum | Wed Dec 05 17:44:25 EST 2001 | LloydG
we are in the process of design, plan to use a 0.5 mm pitch BGA. does someone has a recommended footprints. thx!
Electronics Forum | Fri Dec 14 08:31:51 EST 2001 | PeteC
For a reference check out IPC-SM-782A Amendment 2 "Surface Mount Design and Land Pattern Standard" BGA. It can be found at http://www.ipc.org
Electronics Forum | Wed Jan 16 13:09:41 EST 2002 | jhingtgen
Yannick, I have been involved in a stencil consortium that looked at stencil design, technology, and paste as variables. This material will be presented at APEX 2002 in San Diego next week. This work was done by Rochester Institute of Technology i
Electronics Forum | Mon Feb 04 09:53:35 EST 2002 | Ole J
I need some information on how much leakage resistance that I can expect in a normal PCB. Ex. between two tracks on the same layer or on opposite layer. There must exist some design rules ?
Electronics Forum | Wed Mar 20 19:58:59 EST 2002 | davef
You based the aperture size on LxBxH. Where did you get the LxBxH? Obviously the thickness of the stencil is kinda fixed. Who gave you the other numbers? Consider searching the fine SMTnet archives for background on aperture design.
Electronics Forum | Wed Mar 20 07:57:30 EST 2002 | davef
Purchase: 7095 - Design and Assembly Process Implementation for BGA's Make every effort to distribute the test pads, because if you keep them massed at the ball, it would be a bijundo kick in the BGA rear section, when all of those pins released.
Electronics Forum | Wed Mar 20 15:18:09 EST 2002 | angiewest
You may want to check out IPC-SM-782 "Surface Mount Design and Land Pattern Standard" http://www.ipc.org Good Luck
Electronics Forum | Tue Mar 26 08:37:54 EST 2002 | Andy Farrall
SMT Lab at University of Kent at Canterbury runs a two day SMT Technology and design course details on http://www.esd-centre.ukc.ac.uk Which includes some machine comparissons. Contact me for further info if required.
Electronics Forum | Fri Apr 05 12:58:57 EST 2002 | stefwitt
I am surprised to hear that you can wave a socket with or without component in it. What is the orientation of the socket on the board, 0 or 45 degree? Are you sure, you can remove the PLCC out of the socket after soldering? Do you have the designers
Electronics Forum | Mon Apr 29 00:15:30 EDT 2002 | GregH
If IPC-SM-782 is for Surface Mount Land Pattern, what is the Standard used for Through Hole Guide (eg. Component Lead Thickness versus Hole diameter etc.), where can I find them? thanks
