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Mask-less laser-machining for rapid low-cost patterning of microstructures in polydimethylsiloxane (PDMS)

Mask-less laser-machining for rapid low-cost patterning of microstructures in polydimethylsiloxane (PDMS)
Mask-less laser-machining for rapid low-cost patterning of microstructures in polydimethylsiloxane (PDMS)
We report on the use of a mask-less laser-machining procedure that enables the rapid creation of micron-scale structures in polydimethylsiloxane (PDMS), a platform most commonly used in the implementation of lab-on-chip devices, and also in micro-contact printing or soft lithography. The designed two-dimensional array of structures, extending over ~1mm2 regions with micron-scale resolution, was laser-ablated into a thin film through the use of femtosecond laser pulses (150fs, 800nm) that were spatially shaped via diffraction from a programmable digital multi-mirror device (DMD). The high switching speed of the DMD mirrors in combination with a high repetition rate laser provides the ability to pattern any desired 2D prototype on the ~1mm scale within a few minutes, circumventing the need for a custom-designed mask and photolithography which is generally needed to produce a specific prototyping master mould. The complementary pattern from the thin film was subsequently transferred into PDMS for fabrication of a mould that was used for micro-contact printing of ink onto a glass substrate. In addition, this non-lithographic, mask-less laser-machining approach can be extended to form both complex micron and submicron scale structures that are useful in contact printing applications but also in the fabrication of millimetre scale lab-on-chip fluidic devices
Sones, C.L.
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Katis, I.N.
f92dfb8f-610d-4877-83f6-fd26a571df12
Mills, B.
05f1886e-96ef-420f-b856-4115f4ab36d0
Feinäugle, M.
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Mosayyebi, Ali
ab9cf6da-58c4-4441-993b-7d03d5d3549a
Butement, Jonathan
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Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020
Sones, C.L.
9de9d8ee-d394-46a5-80b7-e341c0eed0a8
Katis, I.N.
f92dfb8f-610d-4877-83f6-fd26a571df12
Mills, B.
05f1886e-96ef-420f-b856-4115f4ab36d0
Feinäugle, M.
3b15dc5b-ff52-4232-9632-b1be238a750c
Mosayyebi, Ali
ab9cf6da-58c4-4441-993b-7d03d5d3549a
Butement, Jonathan
581ce321-f1af-4a2f-870a-9d8d45133586
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020

Sones, C.L., Katis, I.N., Mills, B., Feinäugle, M., Mosayyebi, Ali, Butement, Jonathan and Eason, R.W. (2013) Mask-less laser-machining for rapid low-cost patterning of microstructures in polydimethylsiloxane (PDMS). E-MRS '13 Materials Research Society Spring Meeting, , Strasbourg, France. 27 - 31 May 2013.

Record type: Conference or Workshop Item (Paper)

Abstract

We report on the use of a mask-less laser-machining procedure that enables the rapid creation of micron-scale structures in polydimethylsiloxane (PDMS), a platform most commonly used in the implementation of lab-on-chip devices, and also in micro-contact printing or soft lithography. The designed two-dimensional array of structures, extending over ~1mm2 regions with micron-scale resolution, was laser-ablated into a thin film through the use of femtosecond laser pulses (150fs, 800nm) that were spatially shaped via diffraction from a programmable digital multi-mirror device (DMD). The high switching speed of the DMD mirrors in combination with a high repetition rate laser provides the ability to pattern any desired 2D prototype on the ~1mm scale within a few minutes, circumventing the need for a custom-designed mask and photolithography which is generally needed to produce a specific prototyping master mould. The complementary pattern from the thin film was subsequently transferred into PDMS for fabrication of a mould that was used for micro-contact printing of ink onto a glass substrate. In addition, this non-lithographic, mask-less laser-machining approach can be extended to form both complex micron and submicron scale structures that are useful in contact printing applications but also in the fabrication of millimetre scale lab-on-chip fluidic devices

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More information

Published date: 2013
Venue - Dates: E-MRS '13 Materials Research Society Spring Meeting, , Strasbourg, France, 2013-05-27 - 2013-05-31
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 367790
URI: http://eprints.soton.ac.uk/id/eprint/367790
PURE UUID: e704dadd-a85d-460e-a56d-f20596a38bbc
ORCID for I.N. Katis: ORCID iD orcid.org/0000-0002-2016-557X
ORCID for B. Mills: ORCID iD orcid.org/0000-0002-1784-1012
ORCID for Ali Mosayyebi: ORCID iD orcid.org/0000-0003-0901-6546
ORCID for R.W. Eason: ORCID iD orcid.org/0000-0001-9704-2204

Catalogue record

Date deposited: 11 Sep 2014 13:04
Last modified: 13 Nov 2024 02:53

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Contributors

Author: C.L. Sones
Author: I.N. Katis ORCID iD
Author: B. Mills ORCID iD
Author: M. Feinäugle
Author: Ali Mosayyebi ORCID iD
Author: Jonathan Butement
Author: R.W. Eason ORCID iD

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