The only thing left to complete this PCB is to validate the reflowed solder joints. In such a case, the TVS diode had tombstoned a little bit and needed to be hand soldered. Then hand solder the vias and connector, and also the PCB is full. Roughen the copper-clad surface https://johnathanhyhou.topbloghub.com/41353033/the-definitive-guide-to-pcb-board