Product name: Impedance pcb Board

Specifications

Layer count: 8

Board thickness: 4.0mm

Base materials: FR4 S1000-2

Finished size: 400*400mm

Surface finish: mmersion

Line width/line space: 5/5mil

Minimum hole: 0.35mm

Solder resist color: Sensitive green

Cu thickness: inner layer 1 OZ outer layer 1 OZ

Characteristic

there are various impedance line in both the internal and external layer , and various impedance control requirment.

accurate impedance control, the impedance tolerance is 100 ohm+/-5%，50 ohm+/-5 ohm

the integration of the board design is very high, thick diameter ratio of more than 10:1, heavy copper plating is difficult

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