... Production PCB fabrication service, for rigid or flexible, RoHScompliant, High Tg boards. All project comes with satisfaction guarantee andon-time ... 1.60mm 60milMax Ratio of Board thickness and Via diameter22:1Min space0.075mm 3milMin line width0.075mm 3milMin hole size0. ... Imm Gold,Imm Tin,Imm Silver, OSP etc.Board materialFR-4 glass epoxy, FR4 High Tg, RoHS compliant; Aluminum, Rogers, etc.Insulation ...