The fabrication of RTD via Lift-off process

Lift-off법에 의한 RTD의 제조

  • 김종성 (경원대학교 화학공학과) ;
  • 원종각 (경원대학교 화학공학과)
  • Published : 2000.11.01

Abstract

RTD temperature sensor is a thermoresistor which uses the liner dependence of the resistance of the sensing material on the temperature, and has good stability and sensibility, so it can be used in highly precise temperature measurement. In this study RTD sensor was fabricated using Pt thin film. The Pt thin film was deposited on alumina using DC-Sputter, and annealed with various temperature. Through the experiments of XRD, AFM, 4-point probe, the surface structure of the thin film with annealing conditions and their effects on the electrical resistance were investigated. RTD with serpentine pattern was fabricated using Lift-off and resistance-temperature characteristics were studied.

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