Hi,
Please suggest STM32L562 UFBGA-132 Fanout guidelines.
I looked into STM32L562E-DK design files for fanout, in which signals are routed in top and S1 layer but there is not via details for layer transition from top to S1. Here attached the fanout for U7 of eval board.
Drill for U7
Top Layer layout for U7
Sig 1 layer layout for U7.
Regards,
Aman
