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Fabrication of Fine Electrodes on the Tip of Hypodermic Needle Using Photoresist Spray Coating and Flexible Photomask for Biomedical Applications
Journal JoVE
Neurosciences
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Journal JoVE Neurosciences
Fabrication of Fine Electrodes on the Tip of Hypodermic Needle Using Photoresist Spray Coating and Flexible Photomask for Biomedical Applications

Fabrication of Fine Electrodes on the Tip of Hypodermic Needle Using Photoresist Spray Coating and Flexible Photomask for Biomedical Applications

DOI:

08:15 min

November 28, 2017

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Chapitres

  • 00:05Titre
  • 00:50Needle Preparation: Insulation, Sputtering, and Spray Coating
  • 02:59UV Exposure and Developing
  • 04:24Chromium/Gold Wet Etching and Removal of Residual Photoresist and Passivation
  • 05:44Results: Fine Electrode Fabrication
  • 07:33Conclusion

Summary

Traduction automatique

The fabrication method for fine interdigitated electrodes (gap and width: 20 µm) at the tip of a hypodermic needle (diameter: 720 µm) is demonstrated using a spray coating and flexible film photomask in the photolithography process.

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