Diamond etching with near-zero micromasking

The outstanding material properties of single-crystal diamond have been the origin of the long-standing interest in its exploitation for engineering of high-performance micro- and nanosystems. Etching and patterning diamond have proven challenging due to the hardness and chemical resistance of the m...

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Main Authors: Xiangbing Wang, Shuangquan Fang, Bo Wang, Mengting Qiu, Kazhihito Nishimura, Nan Jiang, Jian Yi
Format: Article
Language:English
Published: Elsevier 2024-11-01
Series:Journal of Materials Research and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2238785424025390
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author Xiangbing Wang
Shuangquan Fang
Bo Wang
Mengting Qiu
Kazhihito Nishimura
Nan Jiang
Jian Yi
author_facet Xiangbing Wang
Shuangquan Fang
Bo Wang
Mengting Qiu
Kazhihito Nishimura
Nan Jiang
Jian Yi
author_sort Xiangbing Wang
collection DOAJ
description The outstanding material properties of single-crystal diamond have been the origin of the long-standing interest in its exploitation for engineering of high-performance micro- and nanosystems. Etching and patterning diamond have proven challenging due to the hardness and chemical resistance of the material. In this work, the patterned etching process of single-crystal diamond has been investigated using the inductively coupled plasma etching technique. In order to avoid the micromasking phenomenon caused by the metal mask, this paper adopts the Ar/O2–Ar/Cl2/BCl3 two-step cycle etching process and investigates the effect of the Cl2/BCl3 gas ratio on the bottom morphology of single-crystal diamond grid grooves. A theoretical explanation is provided for the use of chlorine-based gases to eliminate micromasking and achieve a smooth etching surface. Finally, an Ar/O₂-Ar/Cl₂/BCl3 cyclic etching process for patterning single-crystal diamond with near-zero micromasking has been developed.
format Article
id doaj-art-a001f94026bd4fe2976d9372e6b8ecec
institution Kabale University
issn 2238-7854
language English
publishDate 2024-11-01
publisher Elsevier
record_format Article
series Journal of Materials Research and Technology
spelling doaj-art-a001f94026bd4fe2976d9372e6b8ecec2024-12-26T08:55:15ZengElsevierJournal of Materials Research and Technology2238-78542024-11-013365596564Diamond etching with near-zero micromaskingXiangbing Wang0Shuangquan Fang1Bo Wang2Mengting Qiu3Kazhihito Nishimura4Nan Jiang5Jian Yi6School of Mechanical Engineering, Yangzhou University, Yangzhou, 225009, China; Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, ChinaSchool of Mechanical Engineering, Yangzhou University, Yangzhou, 225009, China; Corresponding author.Department of Materials Science & Engineering, Saarland University, Saarbrücken, 66123, Germany; Corresponding author.Southwest Institute of Technical Physics, Chengdu, 610041, ChinaNingbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, ChinaNingbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, ChinaNingbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China; Corresponding author.The outstanding material properties of single-crystal diamond have been the origin of the long-standing interest in its exploitation for engineering of high-performance micro- and nanosystems. Etching and patterning diamond have proven challenging due to the hardness and chemical resistance of the material. In this work, the patterned etching process of single-crystal diamond has been investigated using the inductively coupled plasma etching technique. In order to avoid the micromasking phenomenon caused by the metal mask, this paper adopts the Ar/O2–Ar/Cl2/BCl3 two-step cycle etching process and investigates the effect of the Cl2/BCl3 gas ratio on the bottom morphology of single-crystal diamond grid grooves. A theoretical explanation is provided for the use of chlorine-based gases to eliminate micromasking and achieve a smooth etching surface. Finally, an Ar/O₂-Ar/Cl₂/BCl3 cyclic etching process for patterning single-crystal diamond with near-zero micromasking has been developed.http://www.sciencedirect.com/science/article/pii/S2238785424025390Single-crystal diamondInductively coupled plasma etchingMicromaskingCl2/BCl3Cyclic etching process
spellingShingle Xiangbing Wang
Shuangquan Fang
Bo Wang
Mengting Qiu
Kazhihito Nishimura
Nan Jiang
Jian Yi
Diamond etching with near-zero micromasking
Journal of Materials Research and Technology
Single-crystal diamond
Inductively coupled plasma etching
Micromasking
Cl2/BCl3
Cyclic etching process
title Diamond etching with near-zero micromasking
title_full Diamond etching with near-zero micromasking
title_fullStr Diamond etching with near-zero micromasking
title_full_unstemmed Diamond etching with near-zero micromasking
title_short Diamond etching with near-zero micromasking
title_sort diamond etching with near zero micromasking
topic Single-crystal diamond
Inductively coupled plasma etching
Micromasking
Cl2/BCl3
Cyclic etching process
url http://www.sciencedirect.com/science/article/pii/S2238785424025390
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AT shuangquanfang diamondetchingwithnearzeromicromasking
AT bowang diamondetchingwithnearzeromicromasking
AT mengtingqiu diamondetchingwithnearzeromicromasking
AT kazhihitonishimura diamondetchingwithnearzeromicromasking
AT nanjiang diamondetchingwithnearzeromicromasking
AT jianyi diamondetchingwithnearzeromicromasking