On Fri, Jun 16, 2017 at 8:03 AM, mike.valk@gmail.com mike.valk@gmail.com wrote:
. Cut the pads tight a little shorter and place the via's to the right creating a bottleneck but stil far enough from the edge
possible.
. The above but to the left, via's in the middle.
possible but risky.
Depends on how near to can get to left hand pads or the egde on the right and were the pads in the connector have most tolerance.
Speaking of near the edge. The tracks on the board seem awfully close the boards cutoff edge.
yyep they are.
Doesn't that create a problem for cutting them out?
no but it does cause an imbalance in the differential pairs unless the tracks come in dead-straight from the left, and it also means that ground shielding isn't possible.
normally the connector would be at least 20-30 mil away from the edge so that ground vias could be placed all along the right-hand edge. that's near-flat-out impossible. the best that can be hoped for is that the three pins (in grey) which are GND will do the job of creating an EMI shield instead.
l.