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Chosen electrical and stability properties of laser-shaped thick-film and LTCC inductors

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4 Author(s)
Bak, M. ; Wroclaw Univ. of Technol., Wroclaw ; Dudek, M. ; Dziedzic, A. ; Kita, J.

This paper presents fabrication as well as chosen electrical and stability properties of laser-shaped thick-film (made on alumina) and LTCC (with DP 951 ceramic tape as a substrate) inductors. Such components are made based on silver or palladium-silver inks with 14-16 ~m thickness. Inductance, resistance and quality factor, QL are determined in a wide frequency (10 kHz - 110 MHz) and temperature (20degC - 250degC) range and are analyzed as a function of inductor geometry (shape and width of conductive tracks) and metallurgy of conductive layer. The stability properties, i.e. fractional inductance and resistance changes after long-term thermal ageing at elevated temperature (150degC and/or 250degC, 250 hours each) are also investigated and analyzed.

Published in:

Electronics System-Integration Technology Conference, 2008. ESTC 2008. 2nd

Date of Conference:

1-4 Sept. 2008