FreeLists / si-list / [SI-LIST] Re: Cross-hatched reference planes

["Lee Ritchey" <leeritchey@xxxxxxxxxxxxx>]

Unless this is a flex circuit, why would you cross hatch a plane?

Lee Ritchey


> [Original Message]
> From: Shawn Arnold <shawn@xxxxxxxxxxxxxxxxxxxxxxxx>
> To: <si-list@xxxxxxxxxxxxx>
> Date: 4/2/2007 1:23:16 PM
> Subject: [SI-LIST] Cross-hatched reference planes
>
>
>
> Hi All,
>
> Another crazy question.
>
> Previously when doing Consulting work for Intel, they had a calculator
> for determining a copper cross-hatch pattern, trace width and
> separation, used as a reference plane for controlled impedance
> applications on thin core materials and low Er (polyimide) materials.
> Does anyone know if such a calculator is available on the open Market or
> if this is something they have shared publicly?
>
> Regards,
> Shawn
>
>
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