About WATANABE AKIO
About KUMAZAKI YUSUKE
About YATABE ZENJI
About SATO TAKETOMO
About 応用物理学会北海道支部・日本光学会北海道地区合同学術講演会講演予稿集
About gallium nitride
About porous medium
About etching
About electrochemistry
About compound semiconductor
About semiconductor thin film
About porous structure
About electric charge density
About electrochemical etching
About Semiconductor thin films
About Manufacturing technology of solid-state devices
About 電気化学エッチング
About GaN
About 多孔質構造