Steve,

Call me and let's talk about it

FNK

Frank N Kimmey
EM Designer
C&K Systems, Inc
916-353-5366
[log in to unmask]

> ----------
> From:         Stephen R. Gregory[SMTP:[log in to unmask]]
> Reply To:     TechNet E-Mail Forum.;[log in to unmask]
> Sent:         Wednesday, August 19, 1998 10:40 AM
> To:   [log in to unmask]
> Subject:      [TN] Assy: Questions about panel layout...
>
> Hi Everybody!
>
>      I know when you're trying to reduce PCB costs when panelizing,
> you need
> to work with your fab vendor when laying out a panel so your panel
> works with
> their standard panel sizes. But I've got a few general questions about
> board
> orientation within a panel, and board surface finish.
>
>      A basic description of the board is that it is going to be a
> consumer
> product for TV's. It's a long thin board about 1" X 11.5". At one end
> of the
> board there will be eight gold fingers. I'd like to have it laid-out
> in a
> 12-up panel so that I can triple-pick and place the boards in a even
> sequence,
> I have a Zevatech 750 which has three heads. My question about
> orientation is;
> does it make any difference in the fab plating process to have the
> individual
> PCB's all oriented the same way with the fingers all along one side in
> the
> panel, or does it make things easier or cheaper to alternate each PCB
> 180-degrees out from each other so that the gold fingers run down
> along both
> sides of the panel? (This is assuming that the rest of the PCB is
> going to be
> HASL'ed) OR, would it be cheaper to just have the whole panel nickel
> plated
> and flashed with gold and not use HASL?
>
> One last question; this is a 12-up panel, there's no fine pitch, and
> it'll be
> 2-layer. As a general rule, should you be able to expect 100% good
> boards in
> the panel? If not, what are the usual cost breaks for X-outs? Out of
> 12
> boards, I would like to see at the very most no more than 2 bad boards
> in a
> panel...will that drive the cost up more?
>
> Sorry about these basic questions, but I'm kinda' clueless about the
> PCB
> stuff...
>
> Thanks!
>
> -Steve Gregory-
>
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