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Dive into the research topics where Yoshihiro Koyama is active.

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Featured researches published by Yoshihiro Koyama.


Photomask and next-generation lithography mask technology. Conference | 2001

Advanced FIB mask repair technology for 100 nm/ArF lithography

Ryoji Hagiwara; Anto Yasaka; Osamu Takaoka; Tomokazu Kozakai; Satoru Yabe; Yoshihiro Koyama; Masashi Muramatsu; Toshio Doi; Katsumi Suzuki; Mamoru Okabe; Kazuo Aita; Tatsuya Adachi; Shinji Kubo; Nobuyuki Yoshioka; Hiroaki Morimoto; Yasutaka Morikawa; Kazuya Iwase; Naoya Hayashi

The satisfactory data have been confirmed on the photomask repairing performance for 100nm-node/ArF-generation lithography with the model SIR5000 photomask repair system. In this report, the repairing ability is presented with transmittance and edge placement data. The edge placement was almost 15nm(3sigma) on binary and MoSi-HT masks, and there isn’t any transmittance loss in the AIMS193 data.


Proceedings of SPIE, the International Society for Optical Engineering | 2006

Advanced photomask repair technology for 65nm lithography (4)

Fumio Aramaki; Tomokazu Kozakai; Masashi Muramatsu; Yasuhiko Sugiyama; Yoshihiro Koyama; Osamu Matsuda; Katsumi Suzuki; Mamoru Okabe; Toshio Doi; Ryoji Hagiwara; Tatsuya Adachi; Anto Yasaka; Yoshiyuki Tanaka; Osamu Suga; Naoki Nishida; Youichi Usui

Yasutoshi Itou, Yoshiyuki Tanaka, Osamu Suga *Yasuhiko Sugiyama, *Ryoji Hagiwara, *Haruo Takahashi, *Osamu Takaoka, *Tomokazu Kozakai, *Osamu Matsuda, *Katsumi Suzuki, *Mamoru Okabe, *Syuichi Kikuchi, *Atsushi Uemoto, *Anto Yasaka, *Tatsuya Adachi, **Naoki Nishida Semiconductor Leading Edge Technologies, Inc. 16-1, Onogawa, Tsukuba-shi, Ibaraki, 305-8569, Japan *SII NanoTechnorogy Inc. 36-1 Takenoshita, Oyama-cho, Sunto-gun, Shizuoka, 410-1393, Japan **HOYA Co. 1375 Kawaguchi-cho, Hachioji-shi, Tokyo, 193-8525, Japan


Archive | 1994

Micromachining method for workpiece observation

Tatsuya Adachi; Takashi Kaito; Yoshihiro Koyama; Kouji Iwasaki


Archive | 1999

Focused ion beam processing apparatus

Yoshihiro Koyama; Kazuo Aita


Archive | 1997

Ion beam working apparatus

Yoshihiro Koyama; Yasuhiko Sugiyama


Archive | 2003

Method for correcting defect of photomask

Yoshihiro Koyama; Osamu Takaoka; 喜弘 小山; 修 高岡


Archive | 2000

Method for repairing a phase shift mask and a focused ion beam apparatus for carrying out method

Ryoji Hagiwara; Yoshihiro Koyama


Archive | 2003

Focused ion beam apparatus having a gas injector in which one of a plurality of nozzles can be selectively driven for elevation

Yoshihiro Koyama


Archive | 1999

Correction apparatus for display device

Ryoji Hagiwara; Yoshihiro Koyama; 喜弘 小山; 良二 萩原


Photomask and X-Ray Mask Technology II | 1995

New technique for repairing opaque defects

Kazuo Aita; Yoshihiro Koyama; Hiroshi Matsumura; Takashi Kaito; Yasushi Satoh; Katsuhide Tsuchiya; Shigeru Noguchi

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