15:15 〜 15:30 [C-9-05] Fabrication of Hollow Structure in Embedded Die Substrate for Heterogeneous Integration 〇Masamitsu Matsuura1, Tanemasa Asano1, Haruichi Kanaya1 (1. Kyushu Univ.(Japan)) https://doi.org/10.7567/SSDM.2020.C-9-05