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    • 5. 发明专利
    • Plasma processing apparatus and the photodetection method of plasma treatment
    • 等离子体处理装置和等离子体处理的光电转换方法
    • JP2006032959A
    • 2006-02-02
    • JP2005203780
    • 2005-07-13
    • Tokyo Electron LtdVerity Instruments Incベリティ インストルメンツ、インコーポレイテッド東京エレクトロン株式会社
    • SAITO SUSUMUKUENY ANDREW W
    • H01L21/3065H05H1/00
    • G01N21/68H01J37/32972
    • PROBLEM TO BE SOLVED: To provide a plasma processing apparatus and a photodetection method, which can detect a plurality of light signals obtained from a plurality of measuring positions, and can analyze a condition of each measuring position using an apparatus having an advantage of a more simplified structure. SOLUTION: Interference light L1 is transmitted to a spectral component 230 through an optical fiber 222. Plasma light L2 is transmitted to the spectral component 230 through an optical fiber 224. Each light is individually subjected to spectral separation. An interference light spectrum L1g obtained by spectral separation of the interference light L1 impinges to an interference-light photo-acceptance region of an photoelectric conversion component 240 through a first optical path 226. A plasma light spectrum L2g obtained by spectral separation of the plasma light L2 impinges to a plasma-light photo-acceptance region of the photoelectric conversion component 240 through a second optical path 228. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种可以检测从多个测量位置获得的多个光信号的等离子体处理装置和光电检测方法,并且可以使用具有优点的装置来分析每个测量位置的状况 的更简化的结构。 解决方案:干涉光L1通过光纤222传输到​​光谱分量230.等离子体光L2通过光纤224传输到光谱分量230.每个光分别进行光谱分离。 通过干涉光L1的光谱分离获得的干涉光束L1g通过第一光路226与光电转换部件240的干涉光光接收区域相撞。通过等离子体光的光谱分离获得的等离子体光谱L2g L2通过第二光路228撞击到光电转换部件240的等离子体光感应区域。(C)2006,JPO&NCIPI