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논문 기본 정보

자료유형
학술대회자료
저자정보
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대한설비공학회 대한설비공학회 강연회 및 기타간행물 대한설비공학회 1990年度 크린룸기술과 오염제어에 관한 국제 심포지움
발행연도
1990.9
수록면
229 - 262 (34page)

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A new particle source identification technique with the integrated systems of a surface scanner and an electron microscope has been developed and applied in the semiconductor processor generated particles and atmospheric particles. Silicon wafer was used as a particle collection plate for element analysis. Since the wafer become a particle sampling plate particles can be sampled and analyzed from any semiconductor manufacturing processes. Based on the particle coordinate information obtained from a laser surface scanner, the same particles are located in an electron microscope and their elements are analyzed using an energy dispersive x-ray spectroscope. At the present experiment, as small as 0.2 ㎛ Feret's diameter particles have been detected and analyzed using the system. The relationship between optical scattering cross section area and Feret's diameter has been studied. The irregular particles sampled from equipments and semiconductor manufacturing processes showed the number mean diameter of about 0.9 ㎛ and the standard deviation of about 1.9. Particle detachment from a wall during de-pressurization process was also observed in a vacuum chamber. The atmospheric particles which composed of sulfur, oxygen, sodium, magnesium and chlorine were clearly showed circular area around the solid particles on the silicon wafer surface.

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UCI(KEPA) : I410-ECN-0101-2009-553-015450085