Patent ID: 8383329
Filing Date: 2013-02-26
Classification: G03F,H01B,H05K,Y10T

Abstract:
1. A pattern exposure method comprising the steps of: continuously conveying a strip-or sheet-shaped photosensitive material; and subjecting the photosensitive material to a proximity exposure through a photomask disposed with a proximity gap of 70 to 200 μm from the photosensitive material, thereby exposing the photosensitive material in a periodic pattern corresponding to a mask pattern of the photomask repeated periodically in the conveying direction, wherein a latent image is formed in a mesh pattern on the photosensitive material by the exposure, the mesh pattern has a plurality of intersections and lines disposed therebetween, each of the lines has a protrusion extending outward from a virtual line representing a designed width of each of the lines, and a protruding amount of the protrusion is 1/25 to ⅙ of the designed width.