if you don't mind supplying me with your fax number, I can fax over some
considerations that we have used for panelizing boards.
                                        --Dean Lillibridge
                                NEWvENTURE TECHNOLOGIES
                                (860) 253-7057


-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of bbarr
Sent: Wednesday, August 15, 2001 1:46 PM
To: [log in to unmask]
Subject: [TN] Panelized Boards


I have a 3.5" x 5.5", .063" thick board we will be building in somewhat high
quantities (3,000+/month). This size board is just on the edge as far as
having to put it into a basket to run through our in-line aqueous cleaner to
keep it from moving around. I do not want the operators to have to put this
many boards in baskets during production runs. So, my thoughts have turned
to panelizing these boards, perhaps in a 2x2 arrangement. This would go
through the cleaner with no problem. I do not have a lot of experience in
the best designs for panels. What are the advantages/disadvantages between
v-score and tabs? If using tabs, how many are required to maintain the
rigidity of the panel during reflow? Does there have to be a border around
the boards? Are fiducials required on the panel in addition to the fiducials
already on the individual boards? Any other issues I may have missed?

Thanks.


Bob

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