0.2mm thickness FR4 pcb, thin pcb, enig pcb, immersion gold pcb, 94v0 pcb material: FR4, copper finished: 1/1 OZ finished thickness: 0.2mm surface finished: immersion gold (Au 2U") min hole: 0.15mm min track/gap: 3.5/3.5mil solder mask: white silk screen: black http://hiquality-pcb.com/Pro/pro_show/pid/154.html