On Dec 22, 2017, at 20:22, Luke Kenneth Casson Leighton <[email protected]> wrote: > On Fri, Dec 22, 2017 at 9:37 PM, Richard Wilbur > <[email protected]> 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. _______________________________________________ arm-netbook mailing list [email protected] http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook Send large attachments to [email protected]
