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

Titelangaben

Bak, Maciej ; Dudek, Marcin ; Dziedzic, Andrzej ; Kita, Jaroslaw:
Chosen electrical and stability properties of laser-shaped thick-film and LTCC inductors.
2008
Veranstaltung: 2nd Electronic System-Integration Technology Conference, ESTC 2008 , 01.-04.09.2008 , London, Großbritannien.
(Veranstaltungsbeitrag: Kongress/Konferenz/Symposium/Tagung , Sonstige Präsentationstyp)

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Abstract

This paper presents fabrication as well as chosen electrical and stability properties of laser-shaped thickfilm (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 μm thickness. Inductance, resistance and quality factor, QL are determined in a wide frequency (10 kHz – 110 MHz) and temperature (20°C – 250°C) 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 (150°C and/or 250°C, 250 hours each) are also investigated and analyzed.