Patent ID: 8080106

Claim:
A method of producing an epitaxial silicon wafer, which comprises subjecting a thin disc-shaped silicon wafer to a given treatment inclusive of grinding and/or polishing to form a silicon wafer for epitaxial growth with a cross-sectional form satisfying the following expression (2), and then growing an epitaxial layer on the silicon wafer for epitaxial growth: ΔBow mv =ΔBow cv *k (2) wherein ΔBow mv is a difference between a measured value ΔBow ep of the warping of the epitaxial silicon wafer after the epitaxial layer growth and a measured value ΔBow pw of the warping of the silicon wafer for epitaxial growth before the epitaxial layer growth when an epitaxial layer is formed on a flat silicon wafer for epitaxial growth, and ΔBow cv is a calculated value of the warping of the epitaxial silicon wafer based on a given computational expression, and k=0.5±0.05.