LIQUID CRYSTAL RESIN LAMINATED FILM, METHOD FOR MANUFACTURING THE SAME, AND CIRCUIT BOARD USING LIQUID CRYSTAL RESIN LAMINATED FILM

摘要

PROBLEM TO BE SOLVED: To provide a liquid crystal resin laminated resin film excellent in interlaminar bonding properties, surface smoothness or the adhesiveness to the surface of a film and low in the anisotropy of characteristics, and a method for manufacturing the same. SOLUTION: The liquid crystal resin laminated resin film is formed by laminating a non-liquid crystal thermoplastic resin layer on at least the single surface of a liquid crystal resin layer and has an interlaminar bonding force of 30N/cm or more or formed by laminating the non-liquid crystal thermoplastic resin layer on at least the single surface of the liquid crystal resin layer and has a relation of TN>=TL between the thermal deformation temperature (TN) of the non-liquid crystal thermoplastic resin layer measured by thermomechanical analysis (TMA) and the thermal deformation temperature (TL) of the liquid crystal resin layer. The liquid crystal resin laminated resin film is obtained by co-extruding the non-liquid crystal thermoplastic resin layer to at least the single surface of the liquid crystal resin layer and subjecting the whole to stretching treatment.