2017-08-10 10:18 GMT+02:00 Luke Kenneth Casson Leighton lkcl@lkcl.net:
On Thu, Aug 10, 2017 at 9:01 AM, mike.valk@gmail.com mike.valk@gmail.com wrote:
2017-08-09 15:23 GMT+02:00 Luke Kenneth Casson Leighton lkcl@lkcl.net:
next set...
GND shielding parallel to the differentials is interrupted quite often.
because there's simply not enough space to do otherwise. if i could move the entire CPU and RAM up another 0.5mm it would be doable. but then i would have to re-route 12 signals which go around the top area of the board and that's (a) risky and (b) not enough space to do it.
I found quite some room. See attachments. Red: Easy improvement. Yellow questionable but could use some improvement. Excuse the crappy image editor it's all I have at the moment.
Also wouldn't a GND infill on the signal layers be preferable? As log not unconnected islands emerge.
