Ice lithography using tungsten hexacarbonyl

Ice lithography (IL) fabricates 2D and 3D patterns using electron-solid interaction principle. Herein, we report IL patterning of the negative tone metalorganic precursor. The precursor is condensed at 80 K. It is then patterned using a 5–20 keV electron beam. The pattern thickness and surface rough...

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Main Authors: Rubaiyet I. Haque, Affan Kaysa Waafi, Bingdong Chang, Anpan Han
Format: Article
Language:English
Published: Elsevier 2023-04-01
Series:Micro and Nano Engineering
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2590007223000011
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author Rubaiyet I. Haque
Affan Kaysa Waafi
Bingdong Chang
Anpan Han
author_facet Rubaiyet I. Haque
Affan Kaysa Waafi
Bingdong Chang
Anpan Han
author_sort Rubaiyet I. Haque
collection DOAJ
description Ice lithography (IL) fabricates 2D and 3D patterns using electron-solid interaction principle. Herein, we report IL patterning of the negative tone metalorganic precursor. The precursor is condensed at 80 K. It is then patterned using a 5–20 keV electron beam. The pattern thickness and surface roughness increase with area dose. The line thickness and linewidth also increase with the growing line doses. XPS results show that tungsten is bound to oxygen; metallic and WC bonds are absent, which suggests the IL patterned tungsten hexacarbonyl contains oxidized tungsten embedded in carbon and oxygen matrix. Finally, the IL patterned tungsten hexacarbonyl was investigated as an etch mask for nanofabrication applications. The silicon plasma etching selectivity is 30:1, comparable with commercial photoresists.
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spelling doaj.art-498977bf8f194c0099d765a10e9f2abe2023-03-22T04:37:45ZengElsevierMicro and Nano Engineering2590-00722023-04-0118100171Ice lithography using tungsten hexacarbonylRubaiyet I. Haque0Affan Kaysa Waafi1Bingdong Chang2Anpan Han3Department of Mechanical Engineering, Technical University of Denmark, 2800 Kongens Lyngby, Denmark.Department of Mechanical Engineering, Technical University of Denmark, 2800 Kongens Lyngby, Denmark.Department of Mechanical Engineering, Technical University of Denmark, 2800 Kongens Lyngby, Denmark.Corresponding author.; Department of Mechanical Engineering, Technical University of Denmark, 2800 Kongens Lyngby, Denmark.Ice lithography (IL) fabricates 2D and 3D patterns using electron-solid interaction principle. Herein, we report IL patterning of the negative tone metalorganic precursor. The precursor is condensed at 80 K. It is then patterned using a 5–20 keV electron beam. The pattern thickness and surface roughness increase with area dose. The line thickness and linewidth also increase with the growing line doses. XPS results show that tungsten is bound to oxygen; metallic and WC bonds are absent, which suggests the IL patterned tungsten hexacarbonyl contains oxidized tungsten embedded in carbon and oxygen matrix. Finally, the IL patterned tungsten hexacarbonyl was investigated as an etch mask for nanofabrication applications. The silicon plasma etching selectivity is 30:1, comparable with commercial photoresists.http://www.sciencedirect.com/science/article/pii/S2590007223000011Ice lithographyTungsten hexacarbonylElectron beam lithographyNanofabricationOrganic ice
spellingShingle Rubaiyet I. Haque
Affan Kaysa Waafi
Bingdong Chang
Anpan Han
Ice lithography using tungsten hexacarbonyl
Micro and Nano Engineering
Ice lithography
Tungsten hexacarbonyl
Electron beam lithography
Nanofabrication
Organic ice
title Ice lithography using tungsten hexacarbonyl
title_full Ice lithography using tungsten hexacarbonyl
title_fullStr Ice lithography using tungsten hexacarbonyl
title_full_unstemmed Ice lithography using tungsten hexacarbonyl
title_short Ice lithography using tungsten hexacarbonyl
title_sort ice lithography using tungsten hexacarbonyl
topic Ice lithography
Tungsten hexacarbonyl
Electron beam lithography
Nanofabrication
Organic ice
url http://www.sciencedirect.com/science/article/pii/S2590007223000011
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AT anpanhan icelithographyusingtungstenhexacarbonyl