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Proceedings Paper

Structure and properties of resistive micro-areas made using a pulsed and continuous laser beam
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Paper Abstract

In the paper a laser method for producing micro-areas of a high resistivity has been presented. To obtain such areas, a local character of the pulsed radiation beam interaction was used, which - in the laser alloying process - allowed the generation of an alloy in a limited spatial area (of a volume of 0.01 - 1 mm3). In the case of thin wire and foils the alloyed micro-areas comprise the whole section of the element subjected to treatment. For some cases, the required energetic parameters of the beam have been established. The conditions for obtaining the homogeneity of an alloyed area for different lasers (pulse or cw) have been determined. The results of investigations into electrical properties of the elements have been presented. The use of such areas for fuse-links has been suggested. Using the microscopic infrared thermography method, the heating of the elements containing resistive areas with the flow of current of a fixed value and with jump changes in current intensity has been determined.

Paper Details

Date Published: 2 November 2000
PDF: 5 pages
Proc. SPIE 4238, Laser Technology VI: Applications, (2 November 2000); doi: 10.1117/12.405979
Show Author Affiliations
Ryszard Pawlak, Technical Univ. of Lodz (Poland)
Maria Walczak, Technical Univ. of Lodz (Poland)


Published in SPIE Proceedings Vol. 4238:
Laser Technology VI: Applications
Wieslaw L. Wolinski; Zdzislaw Jankiewicz, Editor(s)

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