[S-II-3] Extremely High Selective Etching of Porous Si for Single Etch-Stop Bond-and-Etch-Back SOI K. Sakaguchi, N. Sato, K. Yamagata, Y. Fujiyama, T. Yonehara (1.Device Development Center, Canon Inc.) https://doi.org/10.7567/SSDM.1994.S-II-3