고정밀 저항용 질화탄탈 박막의 특성

Characteristic of Tantalum Nitride Thin-films for High Precision Resistors

  • 최성규 (영남대학교 전자공학과) ;
  • 나경일 (동서대학교 정보시스템공학부 메카트로닉스전공) ;
  • 남효덕 (영남대학교 전자공학과) ;
  • 정귀상 (동서대학교 정보시스템공학부 메카트로닉스전공)
  • 발행 : 2001.11.01

초록

This paper presents the characteristics of Ta-N thin-(ibm for high precision resistors, which were deposited oni substrate by DC reactive magnetorn sputtering in an argon-nitrogen atmosphere(Ar-(4∼16%)N$_2$). Sturcutural properties sutided using X-ray diffraction (XRD) indicate the presence of TaN, Ta$_3$N$\sub$5/ or a mixture of Ta-N phases in the films depending on the amount of nitrogen in the sputtering gas. The chemical composition are investigated by auger electro spectroscopy(AES). The optimized conditions of Ta-N thin-film resistors were deposited in 4 % N$_2$ gas flow ratio. Under optimum conditions, the Ta-N thin-film resistors are obtained a high resistivity, $\rho$=305.7 ${\mu}$Ωcm, a low temperature coefficient of resistance, TCR=-36 ppm/$^{\circ}C$.

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