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Featured researches published by Yuichi Madokoro.


Electron-Beam, X-Ray, and Ion-Beam Technology: Submicrometer Lithographies IX | 1990

Focused ion-beam-assisted deposition of tungsten

Yuichi Madokoro; Tsuyoshi Ohnishi; Tohru Ishitani

Formation of fine conductive layer patterns by focused ion beam ( FIB ) using tungsten hexacarbonyl [W(CO)6] has been carried out to study its deposition mechanism. The effects of beam current density on the deposition rate, using a chamber-type gas delivery system and a nozzle-type system has been investigated and compared. It is found that the amount of dependence of deposition yield on current density differs between the two systems. In addition, the difference in gas pressures of the two systems cause different compositions of the deposits.


Archive | 2007

Method and apparatus for specimen fabrication

Satoshi Tomimatsu; Kaoru Umemura; Yuichi Madokoro; Yoshimi Kawanami; Yasunori Doi


Archive | 1998

Method and apparatus for sample fabrication

Satoshi Tomimatsu; Kaoru Umemura; Yuichi Madokoro; Yoshimi Kawanami; Yasunori Doi


Archive | 1998

Method and apparatus for preparing samples

Satoshi Tomimatsu; Kaoru Umemura; Yuichi Madokoro; Yoshimi Kawanami; Yasunori Doi


Archive | 2004

Ion beam apparatus and sample processing method

Hiroyuki Muto; Tohru Ishitani; Yuichi Madokoro


Archive | 1994

PROCESSING METHOD AND DEVICE USING FOCUSED ION BEAM GENERATING MEANS

Junzo Azuma; Yuichi Hamamura; Fumikazu Ito; Takashi Kamimura; Yoshimi Kawanami; Yuichi Madokoro; Michinobu Mizumura; Akira Shimase; Kaoru Umemura; 隆 上村; 文和 伊藤; 朗 嶋瀬; 義実 川浪; 淳三 東; 馨 梅村; 通伸 水村; 有一 濱村; 祐一 間所


Archive | 2005

Focused ion beam apparatus

Tohru Ishitani; Hiroyuki Muto; Yuichi Madokoro


Archive | 2007

Liquid metal ion gun

Hiroyasu Kaga; Yuichi Madokoro; Shigeru Izawa; Tohru Ishitani; Kaoru Umemura


Journal of Electron Microscopy | 2002

Origins of material contrast in scanning ion microscope images

Tohru Ishitani; Yuichi Madokoro; Mine Nakagawa; Kaoru Ohya


Archive | 1999

Method and apparatus for fabricating planar sample

Yuichi Madokoro; Satoshi Tomimatsu; Kaoru Umemura; 聡 富松; 馨 梅村; 祐一 間所

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