Schedule 3 2:47 PM - 2:49 PM [LEDIA-P-17] Dependence of surface morphology of N-polar AlN on misorientation angle of sapphire substrate *Tatsuya Isono1, Tatsuya Ezaki1, Tadatoshi Ito1, Ryota Sakamoto1, Yongzhao Yao2, Yukari Ishikawa2, Narihito Okada1, Kazuyuki Tadatomo1 (1. Yamaguchi University, 2. JFCC)