... Printed Circuit Board fabrication, providing consistent high quality and affordable price of Printed Circuit Boards. Whether it ... 3 mil Smallest Hole: 0.006" Blind, Buried and plugged Vias Controlled impedance Material Thickness: 0.008" ... SMOBC (HASL) Carbon Selective Gold Plating Hard and Soft Gold Immersion Gold Immersion Silver Immersion Tin ... PCB design, ,EMS service, pcb from Leadsintec Co.,Ltd.