Product name: 6-layer second-order HDI PCB

Sheet: FR4 Lianmao

Number of floors: 6 floors

Board thickness: 0.8mm

Surface technology: Immersion gold + OSP

Copper thickness: 0.50z

Minimum line width/line spacing: 2.5mil/2.5mil

Special process: 2nd order blind hole 1-2,2-3,4-5,5-6