1-40 Layers Printed Circuit Board Multilayer PCB Board PCB Circuit Board in HASL Solder Mask. Wide Layer Range: Supports 1 to 40 layers for various complexity requirements. Precise Line/Space: Minimum line and space capability down to 0.075mm (3mil). Fast Lead Time: Quickest lead time of 24 hours for double-sided boards. Comprehensive Surface Finish: Offers HASL, ENIG, OSP, Gold Finger, and other finishes. Strict Impedance Control: Impedance tolerance maintained within +/-10%. 24/7 Technical Support: Round-the-clock technical and order service available.