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Proceedings Paper

Laser modification of properties of materials and elements for electronics
Author(s): Ryszard Pawlak; Franciszek Kostrubiec; Mariusz Tomczyk; Maria Walczak
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Paper Abstract

Applying of laser technologies offer many new possibilities for achieving conducting materials with modified properties. Laser processes also allow microfabrication of elements of dimension in micrometer scale. The modified materials and elements were obtained by special using of such a laser technologies as rapid remelting, microalloying, removing of material. For some cases, the required energetic parameters of the laser beam have been established and especially developed technological ideas have been presented. Microstructure evolution and phase identification of treated materials was investigated by means of optical and scanning microscopy and X-ray microanalysis. It has been shown that in these technological processes it was possible to achieve conducting materials with changed properties, among other things with modified electrical resistivity. In selected cases it was also possible 3_D shaping of modified elements. The results of investigations were applied for laser welding of joints in power devices, laser microsoldering of IC on PC-board, producing some contact materials.

Paper Details

Date Published: 11 October 2005
PDF: 11 pages
Proc. SPIE 5958, Lasers and Applications, 59581W (11 October 2005); doi: 10.1117/12.622611
Show Author Affiliations
Ryszard Pawlak, Technical Univ. of Łódź (Poland)
Franciszek Kostrubiec, Technical Univ. of Łódź (Poland)
Mariusz Tomczyk, Technical Univ. of Łódź (Poland)
Maria Walczak, Technical Univ. of Łódź (Poland)

Published in SPIE Proceedings Vol. 5958:
Lasers and Applications
Krzysztof M. Abramski; Antonio Lapucci; Edward F. Plinski, Editor(s)

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