CUTTING METHOD BY SANDBLASTING

摘要

PURPOSE: A cutting method using sandblasting is provided to reduce a time period for which a resist is exposed to abrasives, since the front and rear sides of a processed object are simultaneously cut. CONSTITUTION: A cutting method using sandblasting is as follows. For the front and rear sides of a processed object to be symmetrically formed, resist is formed by inkjet printing on the front and rear sides of the processed object in a predetermined pattern. Abrasive is projected on the front and rear sides of the processed object, so the cut portion from the front side and that of the rear side are communicated on the middle part of the thickness of the processed object.