John Laur wrote:
> What is preferred from the fabricators point of view:
> 
> One drill files containing both plated and non-plated holes?
>                            or
> Two drill files one plated the other non-plated?

On a related note, many design texts suggest using unplated .125 
tooling holes on every design, but our lead designer here wants 
to try to make ALL HOLES PLATED on our designs because he heard 
that it saves processing steps. When I asked a board vendor about 
it, he said it USED to be true that more steps were needed for 
designs with unplated holes, but not anymore. 

There are designs where I need unplated holes, no matter how much 
more difficult it is for the fab house, but other designs could 
go either way (no tooling holes on hand-assembled boards, for 
example). Does it really make a difference to the fabricators?

Also, I have never heard of sending two drill files... do people 
really do that?

confused by too many opinions and no facts...		Jack

(p.s. I hope nobody minds the carbon copy to the DesignerCouncil, 
since I'm sure they would be interested in your responses)

***************************************************************************
* TechNet mail list is provided as a service by IPC using SmartList v3.05 *
***************************************************************************
* To unsubscribe from this list at any time, send a message to:           *
* [log in to unmask] with <subject: unsubscribe> and no text.        *
***************************************************************************