CaRuO3, perovskite-based lead-free thick-film resstors were processed on 96%-alumina and Low Temperature Co-fired Ceramic (LTCC) substrates. The microstructure evolution, possible interaction and electrical properties of resistors were ivestigated. TFR with 25% by vol. of ruthenate on alumina exhibit a sheet resistance Rs=5 KOhm/sqwith hot and cold TCR of 225 and 470 ppm/degree C respectively, whereas the same composition gives 1.2 KOhm/sq and 16.5 KOhm/sq. for cofired and postfired samples, respectively, on LTCC, wuth hot and cold TCR of 190 and 314 ppm/degreeC for co-fired structures, and 216 and 250-ppm/degreeC for post-fired LTCC structires.

Microstructure and elelectrical propperties of perovskite ruthenate-based lead free thick-film resistors on alumina and LTCC / S., Rane; Prudenziati, Maria; Morten, Bruno; L., Golonka; A., Dziedzic. - STAMPA. - (2004), pp. 362-365. ((Intervento presentato al convegno XXVIII Intrnational Conference of IMAPS poland chapter tenutosi a Wroclaw nel 26-29 september.

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