multilayer pcb Material: FR4 Layers: 4 Thickness: 1.6mm Minimum hole size: 0.25mm Minimum trace width and space: 5 mil/5 mil Surface finish: lead free HAL Our PCB capability: Material used: FR4, high Tg Minimum temperature: 170°C High frequency Metal based: aluminum and more Maximum panel size: 26 x 26 inches (66 x 660mm) Minimum line width and spacing: Width (internal): 4mil (0.1mm) Width (external): 4mil (0.1mm) Spacing (external): 4mil (0.1mm) Layer count and thickness: 2 to 12 layers Via/drill size: Minimum drill hole diameter: 10 mil (0.25mm) Minimum via size: 8mil (0.1mm) Micro via: 4 mil (0.1mm) Solder mask bridge between solder dam 3 mil (0.07mm) Warp age: 0.5% Impedance: ±10% Surface finishes: hard gold, ENIG, HASL, carbon ink, OSP (ENTEK CU 106 AX), immersion Minimum SMT pitch: 12mil (0.2mm) Minimum parts foot pins: 0201 Products involved fields: consume electronics, medical equipments, industrial commands, communications, auto parts and more