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    • 4. 发明授权
    • Method and apparatus for controlling the volume of a plasma
    • 用于控制等离子体体积的方法和装置
    • US06322661B1
    • 2001-11-27
    • US09439759
    • 1999-11-15
    • Andrew D. Bailey, IIIAlan M. SchoeppNicolas Bright
    • Andrew D. Bailey, IIIAlan M. SchoeppNicolas Bright
    • H05H100
    • H01J37/32623H01J37/32688
    • A plasma confinement arrangement for controlling the volume of a plasma while processing a substrate inside a process chamber using a plasma enhanced process is disclosed. The arrangement includes a first magnetic bucket having a plurality of first magnetic elements. The first magnetic elements being configured for producing a first magnetic field inside the process chamber. The arrangement further includes a second magnetic bucket having a plurality of second magnetic elements. The second magnetic elements being configured for producing a second magnetic field inside the process chamber. The second magnetic field being configured to combine with the first magnetic field to produce a resultant magnetic field between the first magnetic bucket and the second magnetic bucket. The resultant magnetic field being configured to permit by-product gas from the processing to pass through while substantially confining the plasma within a volume defined at least by the process chamber and the resultant magnetic field.
    • 公开了一种等离子体限制装置,用于在使用等离子体增强过程处理处理室内的衬底的同时控制等离子体的体积。 该装置包括具有多个第一磁性元件的第一磁性桶。 第一磁性元件被配置用于在处理室内产生第一磁场。 该装置还包括具有多个第二磁性元件的第二磁性桶。 第二磁性元件构造成用于在处理室内产生第二磁场。 第二磁场被配置为与第一磁场组合以在第一磁性铲斗和第二磁性铲斗之间产生合成的磁场。 所得到的磁场被配置为允许来自处理的副产物气体通过,同时基本上将等离子体限制在至少由处理室限定的体积和所得的磁场中。