4-layer soft and hard bonding board

Plate thickness: 1.2MM

Copper thickness: 1/1/1/1OZ

Ink: Green Oil White Characters

Drilling: L1-L4 0.3MM

Line width and spacing: 4/4MIL

Surface treatment: sinking gold

Special process: Soft hard combination (L1&L4, L2-L3 is a soft board)

Application field: Consumer electronics