The characterisation of lead-free thick-film resistors on different low temperature Co-fired ceramics substrates

[Display omitted] ► Lead free thick film resistors based on ruthenium oxide were developed. ► The compatibility of resistors with different LTCC substrates was evaluated. ► The interactions between resistors and glassy LTCC substrates were not detected. ► Electrical characteristics were comparable w...

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Veröffentlicht in:Materials research bulletin 2012-12, Vol.47 (12), p.4131-4136
Hauptverfasser: Hrovat, Marko, Kielbasinski, Konrad, Makarovič, Kostja, Belavič, Darko, Jakubowska, Malgorzata
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container_end_page 4136
container_issue 12
container_start_page 4131
container_title Materials research bulletin
container_volume 47
creator Hrovat, Marko
Kielbasinski, Konrad
Makarovič, Kostja
Belavič, Darko
Jakubowska, Malgorzata
description [Display omitted] ► Lead free thick film resistors based on ruthenium oxide were developed. ► The compatibility of resistors with different LTCC substrates was evaluated. ► The interactions between resistors and glassy LTCC substrates were not detected. ► Electrical characteristics were comparable with commercial thick film resistors. Lead-free thick-film resistors were synthesised and investigated. The thick-film resistor materials with nominal sheet resistivities from 50ohm/sq. to 50kohm/sq. were prepared using combinations of two lead-free glasses with reflow temperatures at 940°C and 1240°C, respectively, and two RuO2 powders (fine-grained and coarse-grained RuO2). The thick-film resistors were printed and fired on alumina and on low temperature co-fired ceramics substrates and fired at 850°C and 950°C. The fired resistors were investigated by X-ray powder diffraction, by scanning electron microscopy and by energy dispersive X-ray analysis. The sheet resistivities, temperature coefficients of resistivity, gauge factors and noise indices were measured.
doi_str_mv 10.1016/j.materresbull.2012.08.066
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subjects A. Ceramics
ALUMINIUM OXIDES
C. Electron microscopy
C. X-ray diffraction
CERAMICS
D. Electrical properties
D. Microstructure
ELECTRICAL PROPERTIES
MATERIALS SCIENCE
MICROSTRUCTURE
RESISTORS
RUTHENIUM OXIDES
SCANNING ELECTRON MICROSCOPY
SUBSTRATES
TEMPERATURE COEFFICIENT
X RADIATION
X-RAY DIFFRACTION
title The characterisation of lead-free thick-film resistors on different low temperature Co-fired ceramics substrates
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