METHOD FOR CONTINUOUSLY MANUFACTURING DOUBLE-SIDE CONDUCTOR POLYIMIDE LAMINATE

PROBLEM TO BE SOLVED: To provide a method for continuously manufacturing a double-side conductor polyimide-based laminate with a rolled shape which can have a stable quality and can avoid an appearance failure such as a vertical wrinkle. SOLUTION: A double-side conductor polyimide laminate is manufactured by continuously introducing a base material comprising a one-side conductor laminate obtained by heat setting and laminating polyimide-based insulator layers without any adhesive and a conductive metal foil into a gap between press rolls, and by integrally laminating the conductive metal foil by thermo-compressing. The press rolls are provided with a surface temperature uniformization means and also with an interior-heating control means for causing central and both-side zones to have different thermal expansions. The internal wall surface of the central zone is heated by the heating control means at a temperature higher by 5-20°C than that of the internal wall surface of the both-side zones. Consequently, the thermo-compressing is carried out while automatically correcting non-uniform compressing power caused by a very small tilt of the press rolls during adjustment of the gap between the press rolls through the thermal expansion of the central zone, to thereby obtain an integrated laminate. COPYRIGHT: (C)2005,JPO&NCIPI