Laser ablated micropillar energy directors for ultrasonic welding of microfluidic systems

Carl Esben Poulsen; Kasper Kistrup; Nis Korsgaard Andersen; Rafael J. Taboryski; Mikkel Fougt Hansen; Anders Wolff

doi:10.1088/0960-1317/26/6/067001

Laser ablated micropillar energy directors for ultrasonic welding of microfluidic systems

Carl Esben Poulsen
, Kasper Kistrup
, Nis Korsgaard Andersen
, Rafael J. Taboryski
, Mikkel Fougt Hansen
, Anders Wolff

Danmarks Tekniske Universitet

Publikation: Bidrag til tidsskrift › Tidsskriftsartikel › Forskning › peer review

Abstract

We present a new type of energy director (ED) for ultrasonic welding of microfluidic systems. These micropillar EDs are based on the replication of cone like protrusion structures introduced using a pico-second laser and may therefore be added to any mould surface accessible to a pico-second laser beam. The technology is demonstrated on an injection moulded microfluidic device featuring high-aspect ratio (h × w = 2000 μm × 550 μm) and free-standing channel walls, where bonding is achieved with no detectable channel deformation. The bonding strength is similar to conventional EDs and the fabricated system can withstand pressures of over 9.5 bar.

Originalsprog	Engelsk
Artikelnummer	067001
Tidsskrift	Journal of Micromechanics and Microengineering
Vol/bind	26
Udgave nummer	6
Antal sider	7
ISSN	0960-1317
DOI	https://doi.org/10.1088/0960-1317/26/6/067001
Status	Udgivet - 20 apr. 2016
Udgivet eksternt	Ja

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10.1088/0960-1317/26/6/067001

Jmm 26 6 067001Forlagets udgivne version, 2,05 MB

Citationsformater

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title = "Laser ablated micropillar energy directors for ultrasonic welding of microfluidic systems",

abstract = "We present a new type of energy director (ED) for ultrasonic welding of microfluidic systems. These micropillar EDs are based on the replication of cone like protrusion structures introduced using a pico-second laser and may therefore be added to any mould surface accessible to a pico-second laser beam. The technology is demonstrated on an injection moulded microfluidic device featuring high-aspect ratio (h {\texttimes} w = 2000 μm {\texttimes} 550 μm) and free-standing channel walls, where bonding is achieved with no detectable channel deformation. The bonding strength is similar to conventional EDs and the fabricated system can withstand pressures of over 9.5 bar.",

author = "Poulsen, \{Carl Esben\} and Kasper Kistrup and Andersen, \{Nis Korsgaard\} and Taboryski, \{Rafael J.\} and Hansen, \{Mikkel Fougt\} and Anders Wolff",

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T1 - Laser ablated micropillar energy directors for ultrasonic welding of microfluidic systems

AU - Poulsen, Carl Esben

AU - Kistrup, Kasper

AU - Andersen, Nis Korsgaard

AU - Taboryski, Rafael J.

AU - Hansen, Mikkel Fougt

AU - Wolff, Anders

PY - 2016/4/20

Y1 - 2016/4/20

N2 - We present a new type of energy director (ED) for ultrasonic welding of microfluidic systems. These micropillar EDs are based on the replication of cone like protrusion structures introduced using a pico-second laser and may therefore be added to any mould surface accessible to a pico-second laser beam. The technology is demonstrated on an injection moulded microfluidic device featuring high-aspect ratio (h × w = 2000 μm × 550 μm) and free-standing channel walls, where bonding is achieved with no detectable channel deformation. The bonding strength is similar to conventional EDs and the fabricated system can withstand pressures of over 9.5 bar.

AB - We present a new type of energy director (ED) for ultrasonic welding of microfluidic systems. These micropillar EDs are based on the replication of cone like protrusion structures introduced using a pico-second laser and may therefore be added to any mould surface accessible to a pico-second laser beam. The technology is demonstrated on an injection moulded microfluidic device featuring high-aspect ratio (h × w = 2000 μm × 550 μm) and free-standing channel walls, where bonding is achieved with no detectable channel deformation. The bonding strength is similar to conventional EDs and the fabricated system can withstand pressures of over 9.5 bar.

U2 - 10.1088/0960-1317/26/6/067001

DO - 10.1088/0960-1317/26/6/067001

M3 - Journal article

SN - 0960-1317

VL - 26

JO - Journal of Micromechanics and Microengineering

JF - Journal of Micromechanics and Microengineering

IS - 6

M1 - 067001

ER -

Laser ablated micropillar energy directors for ultrasonic welding of microfluidic systems

Abstract

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