FRET BAR FOR INGOT SLICING, INGOT TO WHICH FRET BAR IS STUCK, AND INGOT CUTTING METHOD USING FRET BAR

摘要

[PROBLEMS] In cutting an ingot by using a multi-wire saw, to improve material use efficiency by reducing variations in thickness among wafers to be obtained to thereby reduce material loss in cutting and improve working efficiency by shortening the time required for slicing. [MEANS FOR SOLVING PROBLEMS] In cutting an ingot by a multi-wire saw, a fret bar for ingot slicing is used in order to form notches at the start of the cutting. The fret bar for ingot slicing is characterized by being a columnar body stuck along the length direction of the ingot to a portion of the surface of the ingot on the side from which the cutting by the multi-wire saw is started.