Dear Bill,

Done that!

The SUPERMAX E-CAD layout package has supported DRC compliant plating
thieving since the first version came out 20 years ago.
 -Doesn't all the other vendors do that too?
It's a VERY simple algorithm so I can't see why it's seldom implemented
in CAD packages.
And really: These kind of things should not be made in the CAM system
-same goes for most DFM clean ups , since you will have to repeat
the repair in the CAM tool for each modification of the design.
problems are often best solved at the source.

(  For more info: http://www.dde.dk/uk/products/eda   )

If I where you, I'd buy my tool :-)
.....or put pressure on my vendor to support me with these type of
features....

Best regards

Per Viklund
Dansk Data Elektronik AS

BROMLEY, Bill wrote:
>
> I would like to respond to your flatness concerns from a designer's
> point of view....
>
>         At the beginning of the year we designed a 6-layer, 8" diameter
> round PWB, all SMT one side. It suffered from bowing and twisting; we
> were concerned about solderability of components, reliability of those
> stressed out solder joints, etc., so in the next iteration of the design
> we added plating thieving within the board image area in all the open
> areas on the non-plane layers. It made a very noticeable difference, and
> was well worth cleaning up the hundreds of DRC errors I got when I first
> arrayed them into the design. EDA vendors, are you going to make this
> exercise easier (some CAM programs already will automatically add
> DRC-compliant plating thieving) ?
>
> Bill
>
> Bill Bromley
> Lead Designer
> Lucas Aerospace PSA
> MailStop D960
> 777 Lena Dr.
> Aurora OH 44202-8025 USA
> voice: 216-995-1000 ex 3092
> email: [log in to unmask]
>

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