PRODUCTION OF METAL FOIL CLAD LAMINATED SHEET

摘要

PURPOSE:To obtain a metal foil clad laminated sheet reduced in warpage after heat treatment. CONSTITUTION:Epoxy resin glass fabric prepregs and resin sheets each having a thickness of 12mum composed of an epoxy resin produced using an extrusion molding machine are alternately superposed one upon another and copper foils are placed on both surfaces of the superposed one and the whole is molded under heating and pressure to obtain a copper clad laminated sheet with a thickness of 1.6mm. The resin sheets are preliminarily cured to a degree preventing the flow of the resin in the heating press molding process of the laminated sheet. The thickness sum total of the resin layer due to the resin sheets is set to 5-30% of the thickness of the laminated sheet.