Multilayer rigid ENIG board

12 layer Multilayer rigid ENIG board. Surface treatment ENIG 2-4U", NI 18-236U". Green slodermask and white silkscreen. Inner copper 1 oz and outer copper finished 1.0 oz. board thickness 1.8mm +/-10%.  Design with 50 ohms single end impedance and 100 ohms differential impedance, tolerance +/-10%. 

For rigid board, our General Capabilities: Can be 1-40 Layer. And the board colour can be: green, bule, white,black, red, purple,yellow, orange, matt-green(semi green), matt-black. The silkscreen colour can be: white, black, yellow.red.

Surface treatment(surface finished) can be: HASL, Lead-free HASL, hard gold plating, Immersion Gold, Immersion Silver, Immersion Tin, OSP and the Options: Gold Tabs, Selective Au, Carbon Ink, Peelable Mask, Micro Via, Controlled Impedance, score, laser drill, blind Vias and buried Vias.