[Arm-netbook] HDMI High-Frequency Layout: Recommendations

[mike.valk at gmail.com]

2017-08-10 13:09 GMT+02:00 Luke Kenneth Casson Leighton <lkcl at lkcl.net>:
> On Thu, Aug 10, 2017 at 11:14 AM, mike.valk at gmail.com
> <mike.valk at gmail.com> wrote:
>
>> Also wouldn't a GND infill on the signal layers be preferable? As log
>> not unconnected islands emerge.
>
>  GND infill *is* going to be done on the signal layers.  but the
> copper-to-track clearance is 10mil (where tracks are 5mil). so what
> happens is: any space smaller than 10mil does *not* get flood-filled.
> so i put little "leaders" - like you can see - into the areas where
> the beer cannot reach.

Ah that explains a lot indeed. Too bad the infill isn't visualized.

Sadly the space between the HDMI connectors is to small to fill. That
would encapsulate the HDMI signal pairs.

>  https://www.youtube.com/watch?v=ab6dJYDgj48

LOL