... leadtime. We offer low-volume,Prototype and Production PCB fabrication service, for rigid or flexible, RoHScompliant, High Tg boards. ... 20mm 48mil 10 layer 1.60mm 60milMax Ratio of Board thickness and Via diameter22:1Min space0.075mm 3milMin ... Nickle, Imm Gold,Imm Tin,Imm Silver, OSP etc.Board materialFR-4 glass epoxy, FR4 High Tg, RoHS compliant ... -0Test voltage50-300V 6 layer high Tg PCB board