largersmall12 Layer 2+8+2 HDI

Product layer: 12L(2+8+2 HDI)

Surface finishing: Hard gold(5u'')

Min trace width/spacing: 4 /4 mil
Finished copper thickness: 1oz
Min hole size: 0.2mm

Special requirement: Hard gold,3 times pressing,

2 times plugging with resin,1 time plugging with plating,Impedance control