Once the panel layout is finished, we send that Gerber file to both the
stencil manufacturer and the fixture manufacturer and they use the
step/repeat info from that Gerber file to create the stencil and the
reflow fixtures/wave pallets, etc.
The assembly print contains only the one-up assembly information and
print notes.
The fab board print contains both the one-up dimensional drawing
information, and also the panel dimensional information on a separate
sheet, but it is all within the fab drawing (not a separate panel
drawing). The panel drawing includes the drill data for the panel and
the location for the panel fiducials, the one-up fab data/print includes
the drill data within the individual board and the individual board
fiducial location(s).
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Phillip Bavaro
Sent: Monday, February 19, 2007 2:43 PM
To: [log in to unmask]
Subject: Re: [TN] PWB panels
Hi Jim,
When we (sometimes) create a board mechanical constraints drawing, and
use a schematic to design the gerber layout (one up), then we create a
dwg for the panel based on optimized input from the team and board fab
shops, which finally results in Gerber which includes the panel but only
has one location populated. The pwb house then uses the Gerber and the
panelized drawing to "format" the panel (for example: AB flip, 180
degree rotations,
etc.)
Having said that, I am interested to see how others deal with creating
the stencil for a multi-up panel.
Where in your process is the stencil gerber data created for a multi-up
panel? Is it created by the designers, or is it step and repeated
(flipped, rotated, etc) by the stencil house? Or does Manufacturing do
it?
What about if you use multiple outside design houses?
Thanks in advance,
Phil
At 02:07 PM 2/19/2007 -0500, Marsico, James wrote:
>Hello TechNet...
>
>A quick question. When designing small PWBs, do you design the paneled
>array or do you supply a one-up design and ask your PWB supplier to
>design the panel for you?
>
>
>
>Jim Marsico
>
>EDO Corporation
>
>1250 New Horizons Blvd.
>
>North Amityville, NY 11701
>
>631-630-5079
>
>[log in to unmask]
>
>
>
>
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