Patent ID: 8267742

Claim:
A method for slicing an ingot into wafers, the method comprising: winding a wire around a plurality of grooved rollers; pressing the wire against an ingot to be sliced into wafers while supplying an ingot slicing slurry to the grooved rollers; causing the wire to travel in a reciprocating direction; controlling an ingot temperature by supplying an ingot temperature adjusting slurry for adjusting the ingot temperature independently from the ingot slicing slurry during slicing of the ingot; and supplying the ingot temperature adjusting slurry to the ingot only at an exit side of the wire traveling in the reciprocating direction, wherein a supply temperature of the ingot temperature adjusting slurry increases as it is supplied to the ingot from the start of slicing of the ingot, the supply temperature of the ingot temperature adjusting slurry becomes equal to the temperature of the ingot when a slicing depth of the ingot reaches at least ⅔ of the diameter of the ingot, and then the supply temperature of the ingot temperature adjusting slurry is gradually reduced.