16:00 〜 16:50 ▲ [16p-P07-4] Controlling the polarity of scandium aluminum nitride (ScAlN) piezoelectric thin film via Si addition 〇Sri Ayu Anggraini1、Masato Uehara1、Kenji Hirata1、Hiroshi Yamada1、Morito Akiyama1 (1.AIST)