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Laser Fabrication and Characterization of Adhesive-Free Joints For Encapsulation of Biomedical Implant Devices

Published online by Cambridge University Press:  01 February 2011

G. Newaz ,
D. G. Georgiev ,
A. Mian ,
G. Auner ,
H. Herfurth  and
R. Witte
G. Newaz
Affiliation:
Center for Smart Sensors and Integrated Microsystems, College of Engineering, Wayne State University, Detroit, MI 48202, U.S.A.
D. G. Georgiev
Affiliation:
Center for Smart Sensors and Integrated Microsystems, College of Engineering, Wayne State University, Detroit, MI 48202, U.S.A.
A. Mian
Affiliation:
Center for Smart Sensors and Integrated Microsystems, College of Engineering, Wayne State University, Detroit, MI 48202, U.S.A.
G. Auner
Affiliation:
Center for Smart Sensors and Integrated Microsystems, College of Engineering, Wayne State University, Detroit, MI 48202, U.S.A.
H. Herfurth
Affiliation:
Fraunhofer Center for Laser Technology, 46025 Port St., Plymouth, MI 48170, U.S.A.
R. Witte
Affiliation:
Fraunhofer Center for Laser Technology, 46025 Port St., Plymouth, MI 48170, U.S.A.
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Abstract

Laser-fabricated joints of sub-millimeter widths between biocompatible, dissimilar materials have the potential for applications as encapsulation of miniature implant biomedical devices. In this work, we briefly describe the laser joining method of a very promising system, polyimide/titanium-coated borosilicate glass, and present and discuss results from characterization of such laser joints by means of mechanical failure (tensile) tests, optical microscopy, X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. Our results suggest the formation of strong chemical bonds between Ti-containing species and certain polymeric functional groups. Mechanical tensile strength failure test showed that such joint experience only limited, disappearing with time degradation as a result of soaking in physiological solutions.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 845: Symposium AA – Nanoscale Materials Science in Biology and Medicine , 2004 , AA5.15
Copyright
Copyright © Materials Research Society 2005

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References

REFERENCES

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