Taking FEDEVEL's Advanced PCB Layout Course

As part of a hobby project I'm designing a PCB that will include a Xilinx Zynq-7000 System-on-Chip and a DDR3L SDRAM. Both of these come in ball-grid array (BGA) packages with balls on a 0.8mm grid. This is my first attempt at a PCB using BGAs, but more critically, it's my first attempt with high-speed DRAMs. I'm fairly confident, but at the same time I'm a little bit intimidated. Twenty-some…