LAMINATED SHEET AND METHOD FOR MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a copper-clad laminated sheet reduced in warpage after etching. SOLUTION: Copper foils are arranged to both outermost surfaces of a layer comprising one or more prepregs impregnated with a PTFE resin and a molten fluoroplastic resin with a melt viscosity of 101 poise or less is arranged between the prepreg layer and the copper foils and the whole is molded under pressure so that each of the molten fluoroplastic resin layers becomes a thickness larger than 2μm but twice or less the thickness of each copper foil.