Patent ID: 6136142
Filing Date: 2000-10-24
Classification: B32B,G03F,H05K,Y10T

Abstract:
A film applying apparatus comprising:a substrate conveying device for conveying a plurality of substrates along a substrate conveying plane at intervals in sequence;a film guide means for guiding a laminated film constituted by lamination of at least a photosensitive resin layer onto a light-transmissible support film and having width nearly equal to the substrate width, toward the substrate in the state that the exposed photosensitive resin layer is directed to one surface of the conveyed substrate; anda pair of laminating rolls having an elastic material laminated on the outer circumference and being heated and rotated, for performing the thermal pressure bonding of the laminated film and the substrate at the thermal pressure bonding temperature, while the laminated film and the substrate are grasped and set,wherein a pair of preparatory bonding rolls having an elastic material laminated on the outer circumference and being rotated are installed at the upstream side of the laminating rolls, for press-bonding the laminated film and the substrate at a temperature lower than the thermal pressure bonding temperature and performing the pressure bonding, while the laminated film and the substrate are grasped and sent, andthe diameter in the preparatory bonding rolls at the side of press-bonding the laminated film to the substrate and the pushing-down force at grasping the laminated film and the substrate are specified so that the range of the elastic deformation into a plane shape contacting with the substrate via the film at the roll surface becomes 5 mm or less in the substrate conveying direction.