How about the panel size working with pick and place machines, wave solder,
auto-insertion, Auto test fixtures, solder paste application, storage racks,
anti-static board carriers and racks, inspection equipment, etc. .... all
these things have limitations on the max size they can handle...
Also, larger panels may need local fiducials for compensation due to
variations in tolerance accumulation across larger areas... Will the panels
be rigid enough or require support through the manufacturing process?
How do you plan do DE-Panelize the boards? How many "X-out" or reject boards
will you allow in a panel?
Doe it make sense to have "SUB" panels? Super-panels that can break down to
sub-panels for certain processes?
enough?
Bill Brooks
PCB Design Engineer , C.I.D.
DATRON WORLD COMMUNICATIONS, INC
3030 Enterprise Court
Vista, CA 92083
Tel: (760)597-1500 Ext 3772 Fax: (760)597-1510
mailto:[log in to unmask]
IPC Designers Council, San Diego Chapter
http://www.ipc.org/SanDiego/
http://home.fda.net/bbrooks/pca/pca.htm
-----Original Message-----
From: My Nguyen [mailto:[log in to unmask]]
Sent: Friday, December 21, 2001 9:34 AM
To: [log in to unmask]
Subject: [TN] Panel Layout Standardization
Hello Technetters and Designers,
First of all MERRY CHRISTMAS!
I am working on Panel Layout Standardization project.
We make memory (SIMM,DIMM,DDR,RIMM,SODIMM,CF, etc)
However, to better pursue the upper manager to see the
potential benefit from doing this, I have to make a
presentation in which all the ideas, objects, goals,
have to be presented clearly.
I have seen many, however, there are always more
upside and downside of the Panel Layout Standadization
that I have not seen. I NEED YOUR HELP HERE.
1. Universally, I know the boardhouse use 18x24
rawstock size. However, besides it, what else do they
use (Taiwan, Korean, Chinese, Ireland, and USA).
2. However the X-Out affects the cost of making PCB?
(We want panel size are around of 12' - L x 7' - W in
which the maximum of PCB can possibly fit).
3. Screen Printing quality of those big panel vs.
smaller panel.
4. More!
Please advise me.
Thanks!
Again Merry Christmas!!!
Stacy
__________________________________________________
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