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Journal of Materials Science

, Volume 40, Issue 21, pp 5641–5647 | Cite as

Laser fabrication and characterization of sub-millimeter joints between polyimide and Ti-coated borosilicate glass

  • Daniel G. GeorgievEmail author
  • Taslema Sultana
  • Ahsan Mian
  • Greg Auner
  • Hans Herfurth
  • Reiner Witte
  • Golam Newaz
Article

Abstract

Laser-fabricated joints of sub-millimeter widths between biocompatible, dissimilar materials have the potential for application as encapsulation of miniature implantable biomedical devices. In this work, we briefly describe the laser joining method of a very promising system, polyimide/titanium-coated borosilicate glass, and present results from characterization of such laser joints by means of mechanical failure (tensile) tests, optical and scanning electron microscopy, X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. Our results suggest that the formation of the joints is a result of the creation of strong chemical bonds between Ti-containing species and certain polymeric functional groups. Mechanical tensile strength failure testing showed that such joints experience some degradation as a result of soaking in physiological solutions. This degradation is limited and, even after relatively long-term exposure the joints retain considerable strength.

Keywords

Encapsulation Raman Spectroscopy Polyimide Borosilicate Glass Dissimilar Material 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science + Business Media, Inc 2005

Authors and Affiliations

  • Daniel G. Georgiev
    • 1
    Email author
  • Taslema Sultana
    • 1
  • Ahsan Mian
    • 1
  • Greg Auner
    • 1
  • Hans Herfurth
    • 2
  • Reiner Witte
    • 2
  • Golam Newaz
    • 1
  1. 1.Center for Smart Sensors and Integrated MicrosystemsCollege of Engineering, Wayne State UniversityDetroitUSA
  2. 2.Fraunhofer Center for Laser TechnologyPlymouthUSA

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