Kazuma Kuroki
Hitachi
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Featured researches published by Kazuma Kuroki.
Welding International | 2017
Takuto Yamaguchi; Tomotake Tohei; Osamu Ikeda; Shohei Hata; Yuichi Oda; Kazuma Kuroki; Hiromitsu Kuroda; Akio Hirose
Abstract Al-rich Zn/Al/Zn clad solder were developed as Pb-free solder for a die-attachment. The Zn/Al/Zn clad solder was produced by clad rolling of Zn and Al strips in order to prevent Al from oxidation and improve wettability. The Zn/Al/Zn clad solder was melted at 382°C after solid-state interdiffusion of the Zn and Al layers. Bonding was successfully achieved with bonding pressure of a few kilopascals. Thermal cycle life of Invar-to-Cu substrate joint using the Zn/Al/Zn clad solder was longer than that of Pb-Sn-Ag solder. No Kirkendall voids were observed in the vicinity of the bonded interface after ageing at 250 °C for 1000 h.
Archive | 2006
Hiromitsu Kuroda; Kazuma Kuroki; Seigi Aoyama; Hiroyoshi Hiruta
Archive | 2007
Hiromitsu Kuroda; Kazuma Kuroki; Takeyoshi Taki; 毅義 滝; 一真 黒木; 洋光 黒田
Archive | 2005
Hideyuki Sagawa; Hiromitsu Kuroda; Kazuma Kuroki; Humio Horii; Tetsuya Tokumitu; Nobuhito Sakuyama; Shigeru Okamoto
Archive | 2011
Takuto Yamaguchi; Masahide Okamoto; Osamu Ikeda; Hiromitsu Kuroda; Kazuma Kuroki; Shohei Hata; Yuichi Oda
Archive | 2009
Masahiro Kiyofuji; Kazuma Kuroki; Kazuhiko Nakagawa; 和彦 中川; 雅宏 清藤; 一真 黒木
Archive | 2005
Kazuma Kuroki; Hiromitsu Kuroda; Hideyuki Sagawa; Sumio Shirai
Archive | 2011
Shohei Hata; Yasushi Ikeda; Hiromitsu Kuroda; Kazuma Kuroki; Yuichi Oda; Masahide Okamoto; Takuto Yamaguchi; 祐一 小田; 拓人 山口; 正英 岡本; 靖 池田; 昌平 秦; 一真 黒木; 洋光 黒田
Archive | 2009
Toshiyuki Horikoshi; Hiromitsu Kuroda; Kazuma Kuroki; Hideyuki Sagawa; Toru Washimi; 英之 佐川; 稔之 堀越; 亨 鷲見; 一真 黒木; 洋光 黒田
Journal of Electronic Materials | 2015
Takuto Yamaguchi; Osamu Ikeda; Yuichi Oda; Shohei Hata; Kazuma Kuroki; Hiromitsu Kuroda; Akio Hirose
