Construction：8 LayerBase Material：Tg150℃ FR4Surface Finish：ENIGOther：Impedance Control；Control Depth Routing
1、Semi-flex designed2、Depth Routing ，left thickness is 0.2mm for flex part3、The Raw material FR4 S1000H+SB120
1、HDI designed + Flex part2、Specific Impedance control3、Rigid-flex with two separate flex part，flex on L3-L4，L5-L6
1、HDI（2+N+2）designed + Flex part2、Specific Impedance control