largersmall24 Layer 4+16+4 HDI

Product layer: 24L(4+16+4 HDI)

Surface finishing: Hard gold(30u'')

Min trace width/spacing: 3.7 /3.7 mil
Finished copper thickness: 1oz
Min hole size: 0.2mm

Special requirement: Hard gold,4 times pressing,

1 time plugging with plating,Impedance control