APPARATUS AND METHOD FOR CUTTING BRITTLE MATERIAL TO MINIMIZE DAMAGE OF CUTTING FACE AND TO GIVE CUTTING FACE OF HIGH QUALITY

摘要

PURPOSE: An apparatus and a method are provided to cut a brittle material, which can give a cutting face of high quality by cutting with applying uniform tension in the outside direction of a cutting part and can minimize damage of a cutting face. CONSTITUTION: The apparatus(100) contains: a plurality of chucks(110) adsorbing and fixing the brittle material(1); a breaking bar(140) located between the chucks(110), which moves up and down and pressing the brittle material; a first driving part(131) transferring the chucks near or far independently; a second driving part(132) transferring the breaking bar(140) up and down. The method contains the steps of: forming a slit along a cutting line on one face of the brittle material; applying force in the outside direction of the slit to strain the brittle material; pressing the other face of the brittle material to cut.