Electrical characterisation of AlCuMo thin films prepared by DC magnetron sputtering

Martin Birkett, Jason Brooker, Roger Penlington, Alasdair Wilson, Kian Tan

    Research output: Contribution to journalArticlepeer-review

    7 Citations (Scopus)

    Abstract

    Thin film resistors have been manufactured to evaluate the electrical performance characteristics of AlCuMo thin films. The films were prepared on Al2O3 substrates at room temperature as a function of Mo concentration by DC magnetron sputtering and were then annealed at various temperatures in air and N2 atmospheres. The effect of annealing temperature on the electrical properties of the films was systematically investigated. Increase in Mo content produced a decrease in temperature coefficient of resistance (TCR), an increase in resistivity () and an improvement in long term stability (/) of the films. TCR varied from negative to positive and further improvements in resistance stability of the films were also achieved through increasing annealing temperature in both air and N2 atmospheres. A temperature region is proposed where `near zero' TCR (ppm/°C) and long term stability of better than 0.2% can be realised.
    Original languageEnglish
    Pages (from-to)304-309
    JournalIET Science, Measurement and Technology
    Volume2
    Issue number5
    DOIs
    Publication statusPublished - Sept 2008

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