Multilayer PCB

FR4 high-end Immersion gold 3U

FR-4  4L  Green SolderMask  White Legend  EING
Description
Board name: High-end FR-4 PCB
Overall dimensions of pannel: 152x142mm/4up
Layer No. 4L 
Thermal conductivity: No
Final board thickness: 1.6mm
Inner Copper thickness total:    35um     
Base material :   FR4 tg150
Solder mask color: Green
Silkscreen: White
Finishing: Immersion gold  (EING)
Min hole: 0.2mm
Bow&twist(IPC-TM-650): 0.75%
Gerber data format: Gerber RS-274X