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Femtosecond Laser Ablation of Implantable Materials

[+] Author Affiliations
Patrick McEligot

University of Wisconsin, Madison, Madison, WI

Seth A. Hara, Susheil Uthamaraj

Mayo Clinic, Rochester, MN

Paper No. DMD2019-3263, pp. V001T04A002; 3 pages
doi:10.1115/DMD2019-3263
From:
  • 2019 Design of Medical Devices Conference
  • 2019 Design of Medical Devices Conference
  • Minneapolis, Minnesota, USA, April 15–18, 2019
  • ISBN: 978-0-7918-4103-7
  • Copyright © 2019 by ASME

abstract

Femtosecond laser ablation is a powerful tool for the fabrication of medical devices, especially with materials commonly used in implantable micro devices as these materials are often incompatible with traditional machining techniques. Laser machining quality is highly dependent not only on the laser parameters, but also on the material that is being machined and so the process must be characterized for each material of interest. In this work, process characterization is presented for two materials commonly used in implantable micro devices — polyimide and silicon. The ablation threshold and etch rate were determined for femtosecond laser machining with a UV wavelength.

Copyright © 2019 by ASME
Topics: Laser ablation

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