Patent ID: 8476149

Claim:
A method for manufacturing a silicon wafer comprising: subjecting a silicon wafer produced from a silicon single crystal ingot grown by a Czochralski process to a rapid heating/cooling thermal process of retaining the silicon wafer for 1 second to 60 seconds at a maximum temperature of 1300° C. to 1380° C. in an oxidizing gas atmosphere having an oxygen partial pressure of 20% to 100%, wherein in the rapid heating/cooling thermal process, a temperature raise rate is 10° C./sec or more and a temperature drop rate is 10° C./sec or more; and the silicon single crystal ingot is grown by the Czochralski process pulling at a rate of 1.2 mm/min or more on average when a silicon wafer having a diameter of 300 mm is produced, and at a rate of 1.8 mm/min or more on average when a silicon wafer having a diameter of 200 mm is produced.