Number of layers: 8
Sheet: FR4
Surface treatment: Shen gold + electric gold
Thickness: 1.6MM
Minimum hole: 0.2MM
Line width and pitch: 3/3.5mil
Process: 2 times first-order HDI, step, resin plug hole, impedance, inner layer local electric gold
Number of layers: 8
Sheet: FR4
Surface treatment: Shen gold + electric gold
Thickness: 1.6MM
Minimum hole: 0.2MM
Line width and pitch: 3/3.5mil
Process: 2 times first-order HDI, step, resin plug hole, impedance, inner layer local electric gold