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Custom FR-4 12 Layer Golden Finger PCB, Multilayer Printed Circuit Boards
1) Layer Count: Double Side to 12 Layers range from 0.2mm-4.0mm
2) Normal Material: FR-4 including Halogen Free & High Tg Value;
Metal Substrate Material: Copper Based, Aluminium Based (Bergquist)
3) Min. Drilled hole size: Mechanical 6mil (0.15mm), Laser 3min(0.075mm)
4) Min. Line Width: 3mil (0.075mm), Min.Line Spacing: 3mil (0.075mm)
5) Surface Finish/Treatment : HASL, Immersion Tin/Silver, ENIG, OSP, Gold Plating.
6) Finished Copper Thickness: Inner Layer 0.5-3.0 oz, Outer Layer 0.5-5.0 oz
7) Special Requirements: Blind & Buried Holes & Controlled Impedance;