| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a scribing method formable of efficiently and surely a scribe line onto a brittle material substrate such as a glass substrate having a resin layer formed thereon. <P>SOLUTION: A grooved cutter wheel 10 is used, which has two-stage blade surfaces comprising a pair of right and left first blade surfaces 12 on which a ridge line forming a first ridge line angle θ<SB POS="POST">1</SB>is formed along a circular peripheral edge and a pair of right and left second blade surfaces 13 successive to the root side of the first blade surfaces 12, and which has the two-stage blade surfaces in which the first blade surfaces 12 are formed at an angle suitable for processing a brittle material substrate and the second blade surfaces 13 are formed at an angle suitable for cutting a resin layer. The cutter wheel 10 is made pressure-contact with the upper surface of the resin layer 3 and simultaneously rolled, to thereby cut the resin layer 3 by the second blade surfaces 13, and to form a scribe line by allowing a blade edge ridge line of the first blade surfaces 12 to bite the substrate. <P>COPYRIGHT: (C)2012,JPO&INPIT |
