I am trying to route BGA package processors but I've never made before. what is the first step of routing BGA package? first fanout BGA after placement bypass capacitor or placement capacitor after fanout.
Also I've read some user guide and they said that put one 0.1uF cap for every two power balls. is it acceptable?
and you can see my bga fanout, does it look good or I need to improve my fanout.
blue=GND Yellow: Core VDD light blue= I/O VDD