이온스파터 가공한 다이아몬드 촉침의 선단반경이 표면거칠기 측정에 미치는 영향

A Study on the Effect of Tip Radius of Diamond Stylus Machined by Ion Sputter in Surface Roughness Measurement

  • 한응교 (한양대학교 정밀기계공학과) ;
  • 노병옥 (한양대학교 정밀기계공학과) ;
  • 유영덕 (한양대학교 대학원)
  • Han, Eung-Gyo (Dept. of Precision Mechanical Engineering, Hanyang University) ;
  • No, Byeong-Ok (Dept. of Precision Mechanical Engineering, Hanyang University) ;
  • Yu, Yeong-Deok (Graduate School of Hanyang University)
  • 발행 : 1990.09.01

초록

In accordance with the high precision of mechanical elements, it has been required to high precision in surface roughness measurement and, therefore, stylus tip radius is manufa- ctured less than 2 .mu. m through ion sputter machining. In this experiment, by suing ion sputter machined stylus pf fine tip, radius and lapping machined stylus, surface roughness of standard specimens, silicon wafer were measured and then Rmax, Ra, RMS value were investi- gatedaccording to the variation of tip radius of stylus. As a result, measuring error due to the variation of stylus tip radius in surface roughness measurement was decreased by using ion sputter machined stylus and also the measuring accuracy was improved. And the measuring variation of Ra, RMS calculated from correlation coefficient lager than 0.9 on the wave of short period and amplitude using ion sputter machined stylus of fine tip radius.

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