Externally excited torroidal plasma source with magnetic control of ion distribution
    41.
    发明授权
    Externally excited torroidal plasma source with magnetic control of ion distribution 失效
    外部激发的环形等离子体源与磁控制的离子分布

    公开(公告)号:US06939434B2

    公开(公告)日:2005-09-06

    申请号:US10164327

    申请日:2002-06-05

    IPC分类号: H01J37/32 C23C16/00 C23F1/00

    摘要: A plasma reactor is described that includes a vacuum chamber defined by an enclosure including a side wall and a workpiece support pedestal within the chamber defining a processing region overlying said pedestal. The chamber has at least a first pair of ports near opposing sides of said processing region and a first external reentrant tube is connected at respective ends thereof to the pair of ports. The reactor further includes a process gas injection apparatus (such as a gas distribution plate) and an RF power applicator coupled to the reentrant tube for applying plasma source power to process gases within the tube to produce a reentrant torroidal plasma current through the first tube and across said processing region. A magnet controls radial distribution of plasma ion density in the processing region, the magnet having an elongate pole piece defining a pole piece axis intersecting the processing region.

    摘要翻译: 描述了一种等离子体反应器,其包括由壳体限定的真空室,所述外壳包括在所述腔室内的侧壁和工件支撑基座,其限定覆盖所述基座的处理区域。 所述腔室具有在所述处理区域的相对侧附近的至少第一对端口,并且第一外部可折入管的相应端部连接到所述一对端口。 反应器还包括工艺气体注入装置(例如气体分配板)和耦合到可折入管的RF功率施加器,其用于施加等离子体源功率以处理管内的气体,以产生通过第一管的可重入环形等离子体电流, 跨越所述处理区域。 磁体控制处理区域中的等离子体离子密度的径向分布,磁体具有限定与加工区域相交的极片轴线的细长极片。

    Externally excited torroidal plasma source with a gas distribution plate
    42.
    发明授权
    Externally excited torroidal plasma source with a gas distribution plate 失效
    外部激发的环形等离子体源与气体分配板

    公开(公告)号:US06551446B1

    公开(公告)日:2003-04-22

    申请号:US09637174

    申请日:2000-08-11

    IPC分类号: C23C1600

    CPC分类号: H01J37/321 H01J37/32082

    摘要: A plasma reactor for processing a workpiece includes a vacuum enclosure, including a wall, defining a vacuum chamber, the vacuum chamber having a main chamber portion on one side of the wall and a plenum on another side of the wall, the plenum communicating with the chamber portion through at least one opening in the wall, a workpiece support within the main chamber portion and facing the wall. A gas distribution plate is adjacent the wall and faces the workpiece support and is coupled to a reactive process gas supply for injecting reactive process gases directly into a process region adjacent the workpiece support. A gas injection port at the plenum is coupled to a diluent gas supply for injecting diluent gases into the plenum. A coil antenna adapted to accept RF power is inductively coupled to the interior of said plenum, and is capable of maintaining a plasma in a reentrant path through the plenum and across the process region.

    摘要翻译: 用于处理工件的等离子体反应器包括真空封壳,其包括限定真空室的壁,所述真空室具有在壁的一侧上的主室部分和在壁的另一侧上的增压室, 室部分通过壁中的至少一个开口,主室部分内的工件支撑件并面向壁。 气体分配板邻近壁并且面向工件支撑件并且与反应性工艺气体供应件相连接,用于将反应性工艺气体直接注入到与工件支撑件相邻的工艺区域中。 增压室处的气体注入口与稀释气体供应装置连接,用于将稀释气体注入气室。 适于接收RF功率的线圈天线感应耦合到所述增压室的内部,并且能够将等离子体维持在通过充气室并且跨越过程区域的折返路径中。

    Externally excited torroidal plasma source using a gas distribution plate
    43.
    发明授权
    Externally excited torroidal plasma source using a gas distribution plate 失效
    使用气体分配板的外部激发的环形等离子体源

    公开(公告)号:US06453842B1

    公开(公告)日:2002-09-24

    申请号:US09636700

    申请日:2000-08-11

    IPC分类号: C23C1600

    CPC分类号: H01J37/321 H01J37/32082

    摘要: A plasma chamber defining an evacuated interior environment for processing a substrate includes a substrate support, an apertured gas distribution plate in spaced facing relationship to the substrate support, and adapted to flow process gases into the chamber interior environment adjacent the substrate support, the gas distribution plate and substrate support defining a substrate processing region therebetween, a hollow reentrant conduit having respective ends opening into the substrate processing region on opposite sides of the gas distribution plate, with the interior of said conduit sharing the interior environment. The conduit is adapted to accept irradiation of processing gases within the conduit to sustain a plasma in a path extending around the conduit interior and across the substrate processing region within the chamber interior environment.

    摘要翻译: 限定用于处理衬底的抽空的内部环境的等离子体室包括衬底支撑件,与衬底支撑件间隔开的面对关系的多孔气体分配板,并且适于将工艺气体流入邻近衬底支撑件的腔室内部环境中,气体分布 板和基板支撑件,其间限定了其间的基板加工区域,中空折痕导管,其相应的端部通向气体分配板的相对侧上的基板处理区域,所述导管的内部共享内部环境。 导管适于接受管道内的处理气体的照射,以在围绕导管内部延伸并且在腔室内部环境内的衬底处理区域上延伸的路径中维持等离子体。

    Method of processing a workpiece using an externally excited torroidal plasma source
    44.
    发明授权
    Method of processing a workpiece using an externally excited torroidal plasma source 失效
    使用外部激发的环形等离子体源处理工件的方法

    公开(公告)号:US06410449B1

    公开(公告)日:2002-06-25

    申请号:US09636436

    申请日:2000-08-11

    IPC分类号: H01L21302

    CPC分类号: H01J37/321 H01J37/32082

    摘要: A method of processing a workpiece in a plasma reactor includes establishing a torroidal path for a plasma current to flow that passes near and transverse to the surface of said workpiece, maintaining a plasma current in the torroidal path by applying RF power to a portion of the torroidal path away from the surface of the workpiece, and increasing the ion density of the plasma current in the vicinity of the workpiece by constricting the area of a portion of the torroidal path overlying the workpiece.

    摘要翻译: 在等离子体反应器中处理工件的方法包括建立用于等离子体电流的环形路径,其流过靠近和横向于所述工件的表面的流动,通过将RF功率施加到环形路径的一部分来维持在环形路径中的等离子体电流 环形路径远离工件的表面,并且通过收缩覆盖工件的一部分环形路径的面积来增加工件附近的等离子体电流的离子密度。

    Plasma immersion ion implantation reactor having multiple ion shower grids
    45.
    发明授权
    Plasma immersion ion implantation reactor having multiple ion shower grids 有权
    具有多个离子淋浴网格的等离子体浸没离子注入反应器

    公开(公告)号:US08058156B2

    公开(公告)日:2011-11-15

    申请号:US10895784

    申请日:2004-07-20

    IPC分类号: H01L21/425

    摘要: A plasma immersion ion implantation process for implanting a selected species at a desired ion implantation depth profile in a workpiece is carried out in a reactor chamber having a set of plural parallel ion shower grids that divide the chamber into an upper ion generation region and a lower process region, each of the ion shower grids having plural orifices in mutual registration from grid to grid, the plural orifices oriented in a non-parallel direction relative to a surface plane of the respective ion shower grid. The process includes placing a workpiece in the process region, the workpiece having a workpiece surface generally facing the surface plane of the closest one of the plural ion shower grids, and furnishing the selected species into the ion generation region. The process further includes evacuating the process region, and applying plasma source power to generate a plasma of the selected species in the ion generation region. The process also includes applying successive grid potentials to successive ones of the grids and applying a bias potential to the workpiece. The combination of the grid and bias potentials corresponds to the desired ion implantation depth profile in the workpiece.

    摘要翻译: 在具有一组多个并联离子淋浴网格的反应室中进行用于在工件中以期望的离子注入深度分布植入选定物种的等离子体浸没离子注入方法,该多个平行离子淋浴网将腔室分成上部离子产生区域和下部 处理区域,每个离子淋浴栅格具有从栅格到栅格相互配准的多个孔,多个孔相对于各个离子喷淋栅格的表面平行于非平行方向。 该工艺包括将工件放置在工艺区域中,工件具有大致面对多个离子淋浴栅格中最接近的一个的表面的工件表面,并将所选择的物质提供到离子产生区域中。 该方法还包括抽空处理区域,以及施加等离子体源功率以在离子产生区域中产生所选物种的等离子体。 该过程还包括将连续的栅格电势施加到连续的栅格并向工件施加偏置电位。 栅格和偏置电位的组合对应于工件中期望的离子注入深度分布。

    Method to drive spatially separate resonant structure with spatially distinct plasma secondaries using a single generator and switching elements
    47.
    发明授权
    Method to drive spatially separate resonant structure with spatially distinct plasma secondaries using a single generator and switching elements 失效
    使用单个发生器和开关元件来驱动具有空间不同等离子体二次谐波的空间分离谐振结构的方法

    公开(公告)号:US07430984B2

    公开(公告)日:2008-10-07

    申请号:US10285092

    申请日:2002-10-30

    IPC分类号: C23C16/00 C23F1/00

    摘要: A plasma reactor for processing a workpiece, the plasma reactor comprising an enclosure, a workpiece support within the enclosure facing an overlying portion of the enclosure, the workpiece support and the overlying portion of the enclosure defining a process region therebetween extending generally across the diameter of said wafer support, the enclosure having a first and second pairs of openings therethrough, the two openings of each of the first and second pairs being near generally opposite sides of said workpiece support, a first hollow conduit outside of the process region and connected to the first pair of openings, providing a first torroidal path extending through the conduit and across the process region, a second hollow conduit outside of the process region and connected to the second pair of openings, providing a second torroidal path extending through the conduit and across the process region, first and second plasma source power applicators inductively coupled to the interiors of the first and second hollow conduits, respectively, each of the first and second plasma source power applicators being capable of maintaining a plasma in a respective one of the first and second torroidal paths, an RF power generator providing an RF output current, a current switching network connected between the RF power generator and the first and second plasma source power applicators for applying respective periodic time segments of RF output current to respective ones of said first and second plasma source power applicators.

    摘要翻译: 一种用于处理工件的等离子体反应器,所述等离子体反应器包括外壳,所述外壳内的工件支撑件面向所述外壳的上部,所述工件支撑件和所述外壳的上部部分限定了其间的工艺区域, 所述晶片支撑件,所述外壳具有穿过其中的第一和第二对开口,所述第一和第二对中的每一个的两个开口靠近所述工件支撑件的大致相对的两侧,在所述工艺区域外部并连接到所述工件区域的第一中空导管 第一对开口,提供延伸穿过导管并跨过处理区域的第一环形路径,在处理区域外部的第二中空导管,并连接到第二对开口,提供延伸穿过导管并跨过管道的第二环形路径 工艺区域,第一和第二等离子体源功率施加器电感耦合到 第一和第二空心管道的裂口分别地,第一和第二等离子体源功率施加器中的每一个能够维持第一和第二环形路径中的相应一个中的等离子体,提供RF输出电流的RF发电机, 连接在RF功率发生器和第一和第二等离子体源功率施加器之间的电流开关网络,用于将RF输出电流的相应的周期性时间段施加到所述第一和第二等离子体源功率施加器中的相应的等离子体源功率施加器。

    Chemical vapor deposition plasma process using plural ion shower grids
    49.
    发明授权
    Chemical vapor deposition plasma process using plural ion shower grids 有权
    使用多个离子淋浴网格的化学气相沉积等离子体工艺

    公开(公告)号:US07291360B2

    公开(公告)日:2007-11-06

    申请号:US10873600

    申请日:2004-06-22

    IPC分类号: C23C16/00 H05H1/24

    摘要: A chemical vapor deposition process is carried out in a reactor chamber having a set of plural parallel ion shower grids that divide the chamber into an upper ion generation region and a lower process region, each of the ion shower grids having plural orifices in mutual registration from grid to grid, each orifice being oriented in a non-parallel direction relative to a surface plane of the respective ion shower grid. A workpiece is placed in the process region, so that a workpiece surface of the workpiece is generally facing a surface plane of the nearest one of the ion shower grids, and a gas mixture comprising a deposition precursor species is furnished into the ion generation region. The process region is evacuated at an evacuation rate sufficient to create a pressure drop across the plural ion shower grids between the ion generation and process regions whereby the pressure in the ion generation region is several times the pressure in the process region. The process further includes applying plasma source power to generate a plasma of the deposition precursor species in the ion generation region and applying successive grid potentials to successive ones of the grids.

    摘要翻译: 化学气相沉积工艺在具有一组多个并联离子淋浴网格的反应室中进行,该平行离子淋浴网将腔室分成上部离子产生区域和下部处理区域,每个离子淋浴网格具有相互配准的多个孔口 网格到网格,每个孔口相对于相应的离子喷淋网格的表面平行于非平行方向。 将工件放置在工艺区域中,使得工件的工件表面通常面向最接近的一个离子淋浴栅格的表面,并且将包含沉积前体物质的气体混合物配备到离子产生区域中。 处理区域以足以在离子产生和处理区域之间的多个离子淋浴栅格之间产生压降的抽空速率抽真空,由此离子产生区域中的压力是处理区域中压力的几倍。 该方法还包括施加等离子体源功率以在离子产生区域中产生沉积前体物质的等离子体,并将连续的栅格电势施加到连续的栅极。