PCB should fulfill requirements of IPC class 2.
First, customer's requirements:
ROHS Compliant: Yes
Material: FR4, Thickness: 1.6mm
Copper layers: 4 Layer
Outside Copper Layer Thickness: 35?
Through Hole: Both, plated and non-plated
Vias: Filled and Capped (Type VII according to IPC4761)
concerns all plated drills with diameter lower or equal 0.4mm
including leveling and final copper lid, as required for 'Via-In-Pad' technology
Soldermask: Top layer only, color: green
Copper Coating: HAL Pb-free
the Gerber file as the blow show
via in pad is no dent
the slice picture as the blow show