8L Interconnection HDI(3+N+3)
| Layer | Surface Finishing | Solder Mask | Min Via | Special Item | 8L HDI(3+N+3) | OSP | Blue | 0.1mm | Impedance Control, Interconnection HDI(L1-L2 L2-L3 L3-L4 L4-L5 L5-L6 L6-L7 L7-L8), Via-in-Pad |
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| Material Thickness | Finished Copper Inner/Outer Thickness | Legend Mark | Standard | 0.8mm+/-0.1mm | 24um | White | IPC Class 2 |
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