... 0.05mm) Outline Tolerance +/- 4mil (0.1mm)S/M Pitch3mil (0.075mm)Aspect ratio12:1Finished Copper Weight10 ozImpedance ... .7%Electric Strength> 1.3KV/mmPeel Strength1.4N/mmSolder Mask Abrasion>= 6HFlammability94V-0Surface FinishingHASL, LF-HASL, ENIG, Flash ... Gold, Immersion Tin, Immersion Silver, OSP,Gold Finger, Peelable Mask, Carbon PrintingMaterialFR4, ROGERS, Taconic, ARLON, BT, Ceramic, Aluminum ...