Edge connector circuit board

12 layer Immersion Gold+edge connector board. the base Material is FR4 KB6167 (TG170). 12-layer PCB.Copper thickness is 1/0.5oz inner-layer/1oz outer-layer.Board Thickness is 1.57mm and the Min.Hole Size is 0.2mm. Min.Line Width/Min.Line Spacing is 0.1mm/0.1mm. Blue solder-resist and with white silkscreen. E-test: 100%. Mixed surface treatment. Total Immersion gold 2u" and edge connector hard gold 50U".  Gold finger boards are common.Including computer memory card, medical equipment and so on will be used. This is a circuit board for scientific research.  and Designed with twelve pairs of impedance lines. Including single end impedance and differential impedance.