On Thu, 27 Jun 1996 03:56:25 -0700 [log in to unmask] wrote:

> From: [log in to unmask]> Date: Thu, 27 Jun 1996 03:56:25 -0700
> Subject: Re: FAB : Odd Layer PCB's
> To: [log in to unmask]
> Cc: [log in to unmask], [log in to unmask], [log in to unmask]
> 
>   Steve..
>           Strange that you shold ask, but only yesterday, that question was           asked and the 
supplier said that unless you really push them, they will 
>   usually charge you for "even" layers because that is how they will process 
>   the build. They will just etch away the even layer. They normally do not 
>   buy single sided matl, so from a design/routing perspective, use the 
>   layer and probably improve the design. Have a good day.
> 
>                                                   Bob Vanech
> 

If the design permits, or can be modified to allow for a duplication of one of the layers, then even 
numbered symmetry can be accomplished (mechanically) with an odd number of "unique 
electrical" layers.


Fred J. Paul, Sr. Process Engineer
PCB Operations, FLUKE CORPORATION
direct:  206 356-5734  fax:  206 356-6070
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