Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-29T07:58:17.097Z Has data issue: false hasContentIssue false
  • English
  • Français

Excimer Laser Direct Write Aluminum on Aluminum Nitride

Published online by Cambridge University Press:  21 February 2011

Hua Li  and
Janet K. Lumpp
Hua Li
Affiliation:
University of Kentucky, Electrical Engineering Department, Lexington, KY
Janet K. Lumpp
Affiliation:
University of Kentucky, Electrical Engineering Department, Lexington, KY
Get access

Abstract

Fabrication of metal lines on aluminum nitride (AIN) ceramic is important for application of AIN as a microcircuit board. An Al line can be made directly from AIN by excimer laser exposure. All lines in this paper were written by pulsed KrF excimer laser (248 nm) in air and vacuum at different scan speeds with a constant laser energy. The morphology of the Al lines was observed by optical and scanning electron microscopies. The lines become more metallic when the scan speed decreases. Consequently the resistance, measured by the four-point probe technique, decreased to a minimum value in the scan speed range of 400 μm/s to 900 μm/s for the samples made in air. The resistance of Al lines written in air is greater than that in vacuum because of oxidation. The samples made in air with scan speed lower than 400 μm/s were heavily oxidized. SAXPS spectra showed a strong oxidation state and that the excimer laser exposure depletes nitrogen from AMN. The Al lines produced by laser-induced decomposition of AMN board are being evaluated as catalysts for laser assisted CVD and conventional electroless plating. The oxidation layer on the surface of Al lines may effect the adhesion between the Al lines and the deposited or plated metal.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 390: Symposium S – Electronic Packaging Materials Science VIII , 1995 , 257
Copyright
Copyright © Materials Research Society 1995

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Marchant, D.D., Nemeck, T.E., ” Advance in Ceramics”, The American Ceramic Society, Vol.26, 1988.Google Scholar
2. Jones, R.D. “Hybrid circuit design and manufacture”, Marcel Dekker, P64, 1982.Google Scholar
3.. Blum, N.A., “ISHM Modular Series in Hybrid Microelectronics”, International Socity for Hybrid Microelectronics, P12, 1990.Google Scholar
4. Mcwilliams, B.M., Herman, I.P., Mitlitoky, F., Hyde, R.A., and Word, L., Appl. Phys. Lett. 43, 946(1983).Google Scholar
5. Black, J.G., doran, S.P. Rothschild, M., and Ehrlich, D.J., Appl. Phys. Lett. 50, 1016(1987).Google Scholar
6. Yin, W.M., Stotko, E.J., Zanzucchi, P.J., Pankova, J.I., Ettenberg, M., and Gilbert, S.C., J. Appl. Phys. 44, 292(1973).Google Scholar
7. Lumpp, J.K., Coretsopoulos, C.N., and Allen, S.D., Mat. Res. Soc. Symp. Proc. 323, 213(1993).Google Scholar
8. Palik, E.D., “Handbook of optical Constants of Solids”, Academic Press, Inc., New York 1985.Google Scholar