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题名:
Moire fringe alignment using composite circular-line gratings for proximity lithography
作者: Xu, Feng1,2; Zhou, Shaolin3; Hu, Song4; Jiang, Wenbo5; Luo, Liang1,2; Chu, Hongyu1,2
刊名: OPTICS EXPRESS
出版日期: 2015-08-10
卷号: 23, 期号:16, 页码:20905-20915
DOI: 10.1364/OE.23.020905
文章类型: Article
英文摘要: We explore the feasibility of a controllable and easy-to-implement moire-based composite circular-line gratings imaging scheme for optical alignment in proximity lithography. One circular grating and four line gratings located on both the mask alignment mark and wafer alignment mark are used to realize the coarse alignment and fine alignment respectively. The fundamental derivation of coarse alignment employing circular gratings and fine alignment employing line gratings are given. Any displacement of misalignment that occurs at the surface of two overlapped gratings can be sensed and determined through subsequent fringe phase analysis without the influence of the gap between the mask and the wafer or wafer process. The design and manufacture process of the alignment marks are presented. The experimental results validate and demonstrate the feasibility of the proposed approach. (C) 2015 Optical Society of America
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Optics
研究领域[WOS]: Optics
关键词[WOS]: X-RAY-LITHOGRAPHY ; NANOIMPRINT LITHOGRAPHY ; DISPLACEMENT ; SYSTEM ; NANOLITHOGRAPHY
收录类别: SCI
语种: 英语
WOS记录号: WOS:000361036400067
ISSN号: 1094-4087
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3708
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Southwest Univ Sci & Technol, Fac Informat & Engn, Mianyang 621010, Sichuan, Peoples R China
2.Robot Technol Used Special Environm Key Lab Sichu, Mianyang 621010, Sichuan, Peoples R China
3.S China Univ Technol, Sch Elect & Informat, Guangzhou 510640, Guangdong, Peoples R China
4.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China
5.Xihua Univ, Sch Elect Engn & Elect Informat, Chengdu 610039, Peoples R China

Recommended Citation:
Xu, Feng,Zhou, Shaolin,Hu, Song,et al. Moire fringe alignment using composite circular-line gratings for proximity lithography[J]. OPTICS EXPRESS,2015,23(16):20905-20915.
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