Patent ID: 7591712

Claim:
A method of producing silicon wafers, the method comprising: cutting out a silicon block from a silicon ingot while supplying a silicon ingot cutting slurry, the silicon block having a predetermined surface roughness; and cutting out the silicon wafers from the silicon block, each silicon wafer having a predetermined thickness, wherein the silicon ingot cutting slurry contains abrasive grains and an alkaline substance, the slurry contains an organic amine having a mass ratio of 0.5 to 5.0 with respect to water in liquid components of the slurry, the slurry is used at a pH of 12 or more and at a temperature of from 65 to 95 degrees C., and the predetermined surface roughness is adjusted to be less than or equal to an upper limit value of a region in which a substrate damage improvement rate becomes 80% or more.