Journal of Surface Science and Engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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Numerical Modeling of Perturbation Effects of Electrostatic Probe into 2D ICP(inductively coupled plasma)

2D-ICP(inductively coupled plasma)에서 정전 탐침 삽입 시의 플라즈마 수치 계산

  • Joo, Jung-Hoon (Department of Materials Science and Engineering and Plasma Materials Research Center, Kunsan National University)
  • 주정훈 (군산대학교 공과대학 신소재공학과, 플라즈마 소재 응용 센터)
  • Received : 2011.02.21
  • Accepted : 2011.02.27
  • Published : 2011.02.28
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Abstract

Numerical modeling is used to investigate the perturbation of a single Langmuir probe (0.2 mm diameter shielded with 6 mm insulator) inserted along the center axis of a cylindrical inductively coupled plasma chamber filled with Ar at 10 mTorr and driven by 13 MHz. The probe was driven by a sine wave. When the probe tip is close to a substrate by 24.5 mm, the probe characteristics was unperturbed. At 10 mm above the substrate, the time averaged electric potential distribution around the tip was severly distorted making a normal probe analysis impossible.

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