Dry etching method
    21.
    发明授权
    Dry etching method 失效
    干蚀刻法

    公开(公告)号:US5254215A

    公开(公告)日:1993-10-19

    申请号:US792221

    申请日:1991-11-12

    摘要: A dry etching method capable of performing fine patterning. A sample substrate is fixedly disposed on a table in a reactant chamber. Gas plasma produced by a gas plasma generator is introduced into the reactant chamber, and excitation light, that is, light capable of exciting inner shell electrons of constituent atoms of the substrate, is irradiated onto the substrate from above the substrate. In the optical path of the excitation light is disposed a mask. The substrate is irradiated with the light in response to a pattern designated by the mask. The excitation light has an energy for exciting electrons of constituent atoms of the substrate. Upon arrival of the light in etched regions, the electrons of the substrate are excited. As a result, etching is effected by the contact of the excited electrons with the gas plasma, and the rate of this etching is greatly enhanced. Since the electrons of the substrate in masked areas are not excited, the masked areas become hardly subjected to etching by the contact of the gas plasma, whereby the pattern of the mask is transferred to the substrate with high accuracy, whereby fine patterns are formed.

    摘要翻译: 能够进行精细图案化的干蚀刻方法。 样品基板固定地设置在反应物室中的工作台上。 由气体等离子体发生器产生的气体等离子体被引入到反应物室中,激发光(即,能够激发衬底的组成原子的内壳电子的光)从衬底上方照射到衬底上。 在激发光的光路中设置掩模。 响应于由掩模指定的图案,用光照射基板。 激发光具有用于激发基板的组成原子的电子的能量。 当光在蚀刻区域到达时,衬底的电子被激发。 结果,通过激发的电子与气体等离子体的接触来实现蚀刻,并且该蚀刻的速率被大大增强。 由于掩模区域中的基板的电子不被激发,所以掩模区域难以通过气体等离子体的接触进行蚀刻,由此掩模的图案以高精度传递到基板,从而形成精细的图案。

    ADDITION OF EXTERNAL ULTRAVIOLET LIGHT FOR IMPROVED PLASMA STRIKE CONSISTENCY

    公开(公告)号:US20240162011A1

    公开(公告)日:2024-05-16

    申请号:US17987679

    申请日:2022-11-15

    IPC分类号: H01J37/32

    摘要: Embodiments of the present disclosure relate to methods and apparatuses of processing a substrate. The apparatus includes a process chamber, the process chamber including a chamber body, a substrate support, and a remote plasma source. The substrate support is configured to support a substrate within the processing region. The remote plasma source is coupled to the chamber body through a connector. The remote plasma source includes a body, an inlet, an inductive coil, and one or more UV sources. The body has a first end, a second end, and a tube spanning between the first end and the second end. The inlet is coupled to a gas source configured to introduce one or more gases into the body through the first end of the body. The inductive coil loops around the tube. The one or more UV sources are coupled to the first end of the body.

    PLASMA PROCESSING APPARATUS
    25.
    发明申请

    公开(公告)号:US20190244794A1

    公开(公告)日:2019-08-08

    申请号:US16389434

    申请日:2019-04-19

    摘要: Provided is a plasma processing apparatus that performs a processing on a processing target substrate by applying plasma of a processing gas on the processing target substrate. The plasma processing apparatus includes: a processing container configured to accommodate the processing target substrate; a lower electrode disposed in the processing container to mount the processing target substrate thereon; an upper electrode disposed in the processing container to face the lower electrode with a processing space being interposed therebetween; a high frequency power source configured to apply a high frequency power between the upper electrode and the lower electrode; a main magnet unit including one or more annular main electromagnetic coils arranged around a central axis; and an auxiliary magnet unit configured to form a magnetic field that perpendicularly or obliquely crosses the central axis in the processing space.