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Electroforming of Ni mold for imprint lithography using high-aspect-ratio PMMA microstructures fabricated by proton beam writing

プロトンビームライティングにより加工した高アスペクト比のPMMA微細構造体を用いたNiモールの電鋳

田邊 祐介*; 西川 宏之*; 関 佳裕*; 佐藤 隆博; 石井 保行; 神谷 富裕; 渡辺 徹*; 関口 淳*

Tanabe, Yusuke*; Nishikawa, Hiroyuki*; Seki, Yoshihiro*; Sato, Takahiro; Ishii, Yasuyuki; Kamiya, Tomihiro; Watanabe, Toru*; Sekiguchi, Atsushi*

Proton Beam Writing (PBW) is a direct-write technique using focused MeV proton beams. Electroforming Ni molds with high-aspect-ratio are developed for imprint lithography using master blocks of PMMA micro-structures fabricated by PBW. In this development, two problems happened as follows; the master blocks with unmelted PMMA remaining into the PMMA micro-structure in the etching process after PBW and the Ni molds with defectively transcriptional structures electroformed on the clear master blocks of its PMMA micro-structure. In this report, the two relations between the PMMA structures and the etching process and between their structures and the electroforming process were individually studied to solve the problems. In the conference, we will present the two problems, the several researches for their solutions and the trial production results of the electroforming Ni molds using the master blocks of the high-aspect-ratio PMMA micro-structures fabricated by PBW.

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パーセンタイル:54.54

分野:Engineering, Electrical & Electronic

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