Standard Technology for Multilayer boards Laminate: FR4 0.062" (0.014"/0.028"/0.014" stack up for 4 layer) Copper Weight: 1 Oz Size: special applies to boards up to 30 sqr inches in size, larger sizes are available Solder Mask: Green LPI Legend: White Top Only Space & Trace: 0.007" Smallest Drill: 0.014" with 0.024" pad Largest Drill: 0.250" Larger boards and/or additional features may add time and expense to the order