Patent attributes
A cutting blade position detecting method using a cutting apparatus including a holding table that holds a workpiece, and a cutting unit in which a cutting blade for cutting the workpiece held by the holding table is mounted in a rotatable state, includes a groove forming step of causing the cutting blade to further cut into the workpiece including a first groove formed by causing the cutting blade to cut into the workpiece, to form the workpiece with a second groove of which one end portion in a width direction does not overlap with the first groove whereas another end portion in the width direction overlaps with the first groove, and a calculating step of calculating the lower end position of the cutting blade based on a length of the one end portion in the width direction of the second groove formed in the workpiece.
