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    • 4. 发明授权
    • Microwave plasma processing apparatus
    • 微波等离子体处理装置
    • US5243259A
    • 1993-09-07
    • US798901
    • 1991-11-27
    • Junji SatoKazuo SuzukiShunichi HiroseTakuya FukudaSatoru Todoroki
    • Junji SatoKazuo SuzukiShunichi HiroseTakuya FukudaSatoru Todoroki
    • H01L21/302H01J37/32H01L21/205H01L21/3065
    • H01J37/32834H01J37/32192H01J37/32458H01J37/32678
    • The present invention relates to a microwave plasma processing apparatus for processing such as thin film formation, etching, sputtering, and plasma oxidation, etc., on a surface of a processing object by utilizing a high density plasma generated by electron cyclotron resonance. A vacuum vessel of the apparatus, in which a microwave transmitted by a microwave guide is utilized for converting gas supplied to the vacuum vessel to plasma for the plasma processing of the processing object placed in the vacuum vessel, is formed in, such manner that the interior space of the vacuum vessel extends beyond the outer periphery of magnetic field generating coils, and the extended portion of the vessel is provided with a gas outlet for connection with an evacuation apparatus to evacuate the interior of the vacuum vessel to a desired vacuum degree. Accordingly, preferable evacuating characteristics can be obtained even in a case when a large amount of the reaction gas is supplied to the vacuum vessel in order to process a large size processing object, because the vacuum vessel in which the processing object is placed can be connected with the evacuation apparatus through a space and the same effect as if the evacuation apparatus is directly connected with the vacuum vessel is realized.
    • 微波等离子体处理装置技术领域本发明涉及利用电子回旋共振产生的高密度等离子体,在加工对象的表面上进行薄膜形成,蚀刻,溅射,等离子体氧化等处理的微波等离子体处理装置。 该装置的真空容器用微波导流器传输的微波用于将供给真空容器的气体转化为等离子体,用于放置在真空容器中的处理物体的等离子体处理,使得 真空容器的内部空间延伸超过磁场产生线圈的外周,并且容器的延伸部分设置有气体出口,用于与排气装置连接以将真空容器的内部抽空至期望的真空度。 因此,即使在将大量的反应气体供给到真空容器中以处理大型加工对象的情况下也可以获得优选的排气特性,因为可以连接处理对象物的真空容器 通过空间排出装置,实现与抽真空装置直接与真空容器连接的效果相同的效果。