| 摘要 |
There is provided a production method in which the beveling step conducted for preventing the cracking or chipping in a raw wafer during the grinding can be omitted when the raw wafer cut out from a crystalline ingot is processed into a double-side mirror-finished semiconductor wafer and a semiconductor wafer can be obtained cheaply by shortening the whole of the production steps for the semiconductor wafer and decreasing the machining allowance of silicon material in the semiconductor wafer to reduce the kerf loss of the semiconductor material as compared with the conventional method. The method is characterized by comprising a slicing step of cutting out a thin disc-shaped raw wafer from a crystalline ingot; a fixed grain bonded abrasive grinding step of sandwiching the raw wafer between a pair of upper and lower platens each having a pad of fixed grain bonded abrasive to simultaneously grind both surfaces of the raw wafer; a heat treating step of subjecting the raw wafer to a given heat treatment after the fixed grain bonded abrasive grinding step; and a one-side polishing step of polishing each of the both surfaces of the raw wafer after the heat treating step.
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