SUBSTRATE DIVIDING APPARATUS AND METHOD FOR DIVIDING SUBSTRATE

摘要

A substrate dividing apparatus for dividing a substrate comprises a scribe line forming means for forming a scribe line on a substrate and a breaking means for breaking the substrate along the scribe line. The breaking means includes a means which makes a vertical crack under the scribe line extend in the thickness direction of the substrate by spraying a heated fluid onto the scribe line formed on the substrate, which fluid has a temperature high enough to have the substrate expand.