Patent ID: 7875116

Claim:
A silicon single crystal producing method in which: the density or quantity of SSDs (Surface Shallow Defects, or very wide and shallow recessed defects) generated on the surface of a wafer having a diameter of 300 mm or greater subjected to an annealing treatment is estimated by using a relational expression established among a density Nssd of the SSDs, oxygen concentration Oi within the silicon single crystal, nitrogen concentration N within the silicon single crystal, cooling rate CR at a predetermined temperature during the pulling of the silicon single crystal; and a constant A, the relational expression being represented by: Nssd=A[Oi] l [N] m [CR] n (where l>0, m>0, and n<0); and the silicon single crystal having a diameter of 300 mm or greater is pulled under such crystal growth conditions of the oxygen concentration, the nitrogen concentration, and the cooling rate in the predetermined temperature range that the estimated SSD density is obtained.