| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Partsch, Uwe
Fraunhofer Institute for Ceramic Technologies and Systems
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2022New Ruthenium-based Conducting Phases for High Ohmic Resistor Pastes for Aluminum Nitride Ceramics
- 2022Fabrication possibilities and characterisation of chalcogenide glass-based sensors for bromide determination
- 2021Chalcogenide glass-based sulphide sensor in thick film technology
- 2021Iodide determination with chalcogenide glass electrodescitations
- 2018Investigation towards the optimum of power capability, ageing stability and costs effectiveness on thick film resistor pastes for AlN ceramics
- 2017Sinter kinetics and interface reactions of silver thick films on aluminium nitridecitations
- 2016Adaption of Functional Ceramic Materials for the Laser Sintering Process in Integrated Sensor Applicationscitations
- 2016Brazing of kovar to alumina and LTCC for integration of ceramic pressure sensors
- 2016Adaption of functional ceramic materials for the laser sintering process in integrated sensor applicationscitations
- 2015Investigation of inhomogeneous shrinkage of partially crystallizing Low Temperature Co-fired Ceramics (LTCC)”citations
- 2014Aerosol jet printing of two component thick film resistors on LTCC
- 2014An innovative contact heating method in the thermoforming process
- 2013Aerosol jet printing of two component thick film resistors on LTCCcitations
- 2013Evaluation of TFR-Characteristics in a Wide Temperature Rangecitations
- 2012Aerosol Printing of High Resolution Films for LTCC-Multilayer Componentscitations
Places of action
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article
Investigation towards the optimum of power capability, ageing stability and costs effectiveness on thick film resistor pastes for AlN ceramics
Abstract
<jats:title>Abstract</jats:title><jats:p>The focus of this work was the optimization of a 10 Ω/□ thick film resistor (TFR) paste composition to obtain increased power capability, aging stability and minimum use of ruthenium oxide for cost savings without changing the defined narrow sheet resistance (R□) and temperature coefficient of resistance (TCR) specifications. In times of highly fluctuating precious metal costs, the use of a minimum of the precious metal ruthenium respectively ruthenium dioxide is one essential part for cost-effectiveness. The thick film paste formulation consists of the electrically conducting phase ruthenium dioxide, a lead-free glass phase and two inorganic additives for tuning thermo-mechanical and electrical properties of the formed films. A phthalate free organic vehicle with ethyl cellulose polymer was used to formulate a screen printable ceramic thick film paste.</jats:p><jats:p>For this paper, RuO2 powders with various specific surface area values (BET) were prepared by thermal annealing of a precipitated fine ruthenium dioxide powder. All other solid and liquid components of the paste were the same as used for IKTS 10 Ω/□ TFR paste FK9611 for AlN substrates. Furthermore, the content of ruthenium dioxide in the paste compositions was changed systematically around an assumed target content to achieve the desired sheet resistivity. Concurrent to the variation of the ruthenium dioxide content the inorganic additives had to be adapted too. The influence of the variations of raw material and paste composition on the film properties were investigated by screen printing 24 resistors of 2 mm × 1 mm dimension on an 1” × 1” AlN substrate, firing at 850 °C for 10 minutes in air atmosphere and subsequently measuring R□, TCR, the stability of resistance ΔR/R0 effected by artificial aging of the resistors (stored 100 up to 1000 hours @ 200°C) and the maximum rated power dissipation (MRPD) as well as short term overload voltage (STOL). The results are discussed in regard to find an optimum between all demands of the most important electrical film properties.</jats:p>