1:30 PM - 1:45 PM △ [15p-211-1] Controlling Impurity Distribution in Quasi-Mono Crystalline Si Ingot by Seed Manipulation for Artificially Controlled Defect Technique 〇(M1)Yusuke Hayama1, Isao Takahashi1, Noritaka Usami1 (1.Nagoya Univ.)