How CAN you have a vertical surface in space?
Brian
Gary Bremer wrote:
> Where is it stated that the conductive pattern can not have any exposed
> copper on the vertical surfaces? Is that any empirical data that
> supports a failure mode if there is exposed copper on the vertical
> surfaces of a conductive pattern? I have searched MIL-STD-2000,
> NASA-STD-8739-2 and NASA-STD-8739-3 but can only find that it is
> allowed. Where I work those with PhD's worry about exposed copper on the
> vertical edges of the conductive patterns and are scared to allow to
> move forward because of possible failure modes with a deep space launch.
> For my limited knowledge of metallurgy: after copper is exposed to
> moisture and oxygen, corrosion takes place only on the surface and does
> not migrate any further. I do have access to NHB5300 to see if exposed
> copper was not allowed.
>
>
> Gary Bremer
>
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