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

[Richard Wilbur]

On Dec 22, 2017, at 20:22, Luke Kenneth Casson Leighton <lkcl at lkcl.net> wrote:
> On Fri, Dec 22, 2017 at 9:37 PM, Richard Wilbur
> <richard.wilbur at gmail.com> wrote:
>> 
>> The reason for dropping the ground plane under the connector pins
>> (layer 1) from layer 2 to layer 5 is that the pins are so close to each other.
> 
> yyeahhh but so are the pins on the bottom layer ESD... which are
> covered by the layer 5 GND keepout hole... it was under the connector
> i was concerned about, with the VIAs on pins 4 10 and 16 (right-hand
> row of 9) being guard VIAs that are within 5mil of HTX1P/N and
> THXCP/N...

Those ground vias I'm not so worried about as they don't look so much different to the proximity of neighbouring connector pins.