Single Layer Lift-Off of CSAR62 for Dense Nanostructured Patterns

Lift-off processing is a common method of pattern transfer for different nanofabrication applications. With the emergence of chemically amplified and semi-amplified resist systems, the possibilities for pattern definition via electron beam lithography has been widened. We report a reliable and simpl...

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Main Authors: Hanna Ohlin, Thomas Frisk, Ulrich Vogt
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/14/4/766
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author Hanna Ohlin
Thomas Frisk
Ulrich Vogt
author_facet Hanna Ohlin
Thomas Frisk
Ulrich Vogt
author_sort Hanna Ohlin
collection DOAJ
description Lift-off processing is a common method of pattern transfer for different nanofabrication applications. With the emergence of chemically amplified and semi-amplified resist systems, the possibilities for pattern definition via electron beam lithography has been widened. We report a reliable and simple lift-off process for dense nanostructured pattern in CSAR62. The pattern is defined in a single layer CSAR62 resist mask for gold nanostructures on silicon. The process offers a slimmed down pathway for pattern definition of dense nanostructures with varied feature size and an up to 10 nm thick gold layer. The resulting patterns from this process have been successfully used in metal assisted chemical etching applications.
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spelling doaj.art-1877f41964224fd5b0794ac7123e8fba2023-11-17T20:29:02ZengMDPI AGMicromachines2072-666X2023-03-0114476610.3390/mi14040766Single Layer Lift-Off of CSAR62 for Dense Nanostructured PatternsHanna Ohlin0Thomas Frisk1Ulrich Vogt2Department of Applied Physics, Biomedical and X-ray Physics, KTH Royal Institute of Technology, Albanova University Center, 106 91 Stockholm, SwedenDepartment of Applied Physics, Biomedical and X-ray Physics, KTH Royal Institute of Technology, Albanova University Center, 106 91 Stockholm, SwedenDepartment of Applied Physics, Biomedical and X-ray Physics, KTH Royal Institute of Technology, Albanova University Center, 106 91 Stockholm, SwedenLift-off processing is a common method of pattern transfer for different nanofabrication applications. With the emergence of chemically amplified and semi-amplified resist systems, the possibilities for pattern definition via electron beam lithography has been widened. We report a reliable and simple lift-off process for dense nanostructured pattern in CSAR62. The pattern is defined in a single layer CSAR62 resist mask for gold nanostructures on silicon. The process offers a slimmed down pathway for pattern definition of dense nanostructures with varied feature size and an up to 10 nm thick gold layer. The resulting patterns from this process have been successfully used in metal assisted chemical etching applications.https://www.mdpi.com/2072-666X/14/4/766lift-offsingle layerelectron beam lithographyCSAR62X-ray diffractive opticszone plate
spellingShingle Hanna Ohlin
Thomas Frisk
Ulrich Vogt
Single Layer Lift-Off of CSAR62 for Dense Nanostructured Patterns
Micromachines
lift-off
single layer
electron beam lithography
CSAR62
X-ray diffractive optics
zone plate
title Single Layer Lift-Off of CSAR62 for Dense Nanostructured Patterns
title_full Single Layer Lift-Off of CSAR62 for Dense Nanostructured Patterns
title_fullStr Single Layer Lift-Off of CSAR62 for Dense Nanostructured Patterns
title_full_unstemmed Single Layer Lift-Off of CSAR62 for Dense Nanostructured Patterns
title_short Single Layer Lift-Off of CSAR62 for Dense Nanostructured Patterns
title_sort single layer lift off of csar62 for dense nanostructured patterns
topic lift-off
single layer
electron beam lithography
CSAR62
X-ray diffractive optics
zone plate
url https://www.mdpi.com/2072-666X/14/4/766
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AT thomasfrisk singlelayerliftoffofcsar62fordensenanostructuredpatterns
AT ulrichvogt singlelayerliftoffofcsar62fordensenanostructuredpatterns