Grayscale photolithography with phase change material photomasks
Grayscale photolithography with phase change material photomasks
Here we report a grayscale photolithography technique using phase change materials, by inducing a multi-level refractive-index-changing phase-transition with femtosecond pulses. The grayscale phase change materials are used as the photomasks to locally change the exposure dose to enable shaping photoresist contour and developing 3D silicon structures. Unlike traditional photomasks, the transmission efficiency of phase change material masks can be tailored to arbitrary grayscale levels with submicron lateral resolution, and the spatial pattern can be optically reconfigured on demand.
Wang, Qian
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Yuan, Guanghui
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Kiang, Kian
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Sun, Kai
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Gholipour, Behrad
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Rogers, Edward
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Huang, Kevin Chung-Che
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Ang, S.S.
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Zheludev, Nikolai
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Teng, Jinghua
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31 July 2017
Wang, Qian
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Yuan, Guanghui
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Kiang, Kian
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Sun, Kai
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Gholipour, Behrad
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Rogers, Edward
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Huang, Kevin Chung-Che
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Ang, S.S.
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Zheludev, Nikolai
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Teng, Jinghua
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Wang, Qian, Yuan, Guanghui, Kiang, Kian, Sun, Kai, Gholipour, Behrad, Rogers, Edward, Huang, Kevin Chung-Che, Ang, S.S., Zheludev, Nikolai and Teng, Jinghua
(2017)
Grayscale photolithography with phase change material photomasks.
Conference on Lasers and Electro-Optics (CLEO Pacific Rim), , Singapore.
31 Jul - 04 Aug 2017.
Record type:
Conference or Workshop Item
(Paper)
Abstract
Here we report a grayscale photolithography technique using phase change materials, by inducing a multi-level refractive-index-changing phase-transition with femtosecond pulses. The grayscale phase change materials are used as the photomasks to locally change the exposure dose to enable shaping photoresist contour and developing 3D silicon structures. Unlike traditional photomasks, the transmission efficiency of phase change material masks can be tailored to arbitrary grayscale levels with submicron lateral resolution, and the spatial pattern can be optically reconfigured on demand.
Text
CLEO_PR_Reconfigurable photolithography mask
- Accepted Manuscript
More information
Accepted/In Press date: 24 April 2017
Published date: 31 July 2017
Venue - Dates:
Conference on Lasers and Electro-Optics (CLEO Pacific Rim), , Singapore, 2017-07-31 - 2017-08-04
Organisations:
Optoelectronics Research Centre, Nanoelectronics and Nanotechnology
Identifiers
Local EPrints ID: 408079
URI: http://eprints.soton.ac.uk/id/eprint/408079
PURE UUID: 1f6547fb-1267-440b-8c3a-5e92080a6131
Catalogue record
Date deposited: 11 May 2017 01:05
Last modified: 15 Jun 2024 01:42
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Contributors
Author:
Qian Wang
Author:
Guanghui Yuan
Author:
Kian Kiang
Author:
Behrad Gholipour
Author:
Edward Rogers
Author:
Kevin Chung-Che Huang
Author:
S.S. Ang
Author:
Nikolai Zheludev
Author:
Jinghua Teng
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