公开(公告)号：US07359177B2

公开(公告)日：2008-04-15

申请号：US11127036

申请日：2005-05-10

申请人： Jang Gyoo Yang ,  Daniel J. Hoffman ,  Steven C. Shannon ,  Douglas H. Burns ,  Wonseok Lee ,  Kwang-Soo Kim

发明人： Jang Gyoo Yang ,  Daniel J. Hoffman ,  Steven C. Shannon ,  Douglas H. Burns ,  Wonseok Lee ,  Kwang-Soo Kim

IPC分类号： H01L21/683 ,  H01T23/00 ,  G01L21/30 ,  G01R31/00 ,  H01J7/24 ,  H05B31/26 ,  C23F1/00 ,  H01L21/306

CPC分类号： H01J37/32706 ,  H01J37/32935 ,  H01L21/6833 ,  Y10T279/23

摘要： A plasma reactor has a dual frequency plasma RF bias power supply furnishing RF bias power comprising first and second frequency components, f(1), f(2), respectively, and an RF power path having an input end coupled to the plasma RF bias power supply and an output end coupled to the wafer support pedestal, and sensor circuits providing measurement signals representing first and second frequency components of a measured voltage and first and second frequency components of a measured current near the input end of the RF power path. The reactor further includes a processor for providing first and second frequency components of a wafer voltage signal as, respectively, a first sum of the first frequency components of the measured voltage and measured current multiplied by first and second coefficients respectively, and a second sum of the second frequency components of the measured voltage and measured current multiplied by third and fourth coefficients, respectively. A processor produces a D.C. wafer voltage by combining D.C. components of the first and second frequency components of the wafer voltage with an intermodulation correction factor that is the product of the D.C. components of the first and second components of the wafer voltage raised to a selected power and multiplied by a selected coefficient.

摘要翻译： 等离子体反应器具有双频等离子体RF偏压电源，其分别提供包括第一和第二频率分量f（1），f（2）的RF偏置功率，以及具有耦合到等离子体RF偏置的输入端的RF功率路径 电源和耦合到晶片支撑基座的输出端，以及传感器电路，其提供表示测量电压的第一和第二频率分量以及在RF功率路径的输入端附近的测量电流的第一和第二频率分量的测量信号。 反应器还包括处理器，用于分别提供晶片电压信号的第一和第二频率分量，分别为测量电压的第一频率分量和测量电流乘以第一和第二系数的第一和，以及第二和 测量电压和测量电流的第二频率分量分别乘以第三和第四系数。 处理器通过将晶片电压的第一和第二频率分量的DC分量与作为晶片电压的第一和第二分量的DC分量升高到所选功率的互调校正因子相结合来产生DC晶片电压 并乘以所选系数。

公开(公告)号：US06853141B2

公开(公告)日：2005-02-08

申请号：US10192271

申请日：2002-07-09

申请人： Daniel J. Hoffman ,  Matthew L. Miller ,  Jang Gyoo Yang ,  Heeyeop Chae ,  Michael Barnes ,  Tetsuya Ishikawa ,  Yan Ye

发明人： Daniel J. Hoffman ,  Matthew L. Miller ,  Jang Gyoo Yang ,  Heeyeop Chae ,  Michael Barnes ,  Tetsuya Ishikawa ,  Yan Ye

IPC分类号： H05H1/46 ,  H01J27/16 ,  H01J37/08 ,  H01J37/32 ,  H01L21/3065 ,  H01J7/24

CPC分类号： H01J37/32091 ,  H01J37/3244 ,  H01J37/32623 ,  H01J37/3266

摘要： A plasma reactor includes a vacuum enclosure including a side wall and a ceiling defining a vacuum chamber, and a workpiece support within the chamber and facing the ceiling for supporting a planar workpiece, the workpiece support and the ceiling together defining a processing region between the workpiece support and the ceiling. Process gas inlets furnish a process gas into the chamber. A plasma source power electrode is connected to an RF power generator for capacitively coupling plasma source power into the chamber for maintaining a plasma within the chamber. The reactor further includes at least a first overhead solenoidal electromagnet adjacent the ceiling, the overhead solenoidal electromagnet, the ceiling, the sidewall and the workpiece support being located along a common axis of symmetry. A current source is connected to the first solenoidal electromagnet and furnishes a first electric current in the first solenoidal electromagnet whereby to generate within the chamber a magnetic field which is a function of the first electric current, the first electric current having a value such that the magnetic field increases uniformity of plasma ion density radial distribution about the axis of symmetry near a surface of the workpiece support.

摘要翻译： 等离子体反应器包括真空外壳，其包括限定真空室的侧壁和顶板，以及腔室内的工件支撑件，并面向天花板以支撑平面工件，工件支撑件和天花板一起限定了工件之间的加工区域 支持和天花板。 工艺气体入口将工艺气体提供到腔室中。 等离子体源功率电极连接到RF功率发生器，用于将等离子体源功率电容耦合到腔室中，以在腔室内维持等离子体。 所述反应器还包括至少邻近所述天花板的顶部螺线管电磁体，所述架空螺线管电磁体，所述天花板，所述侧壁和所述工件支撑件沿着公共对称轴线定位。 电流源连接到第一螺线管电磁体并且在第一螺线管电磁体中提供第一电流，从而在腔室内产生与第一电流有关的磁场，第一电流具有使得 磁场增加等离子体离子密度在工件支撑表面附近的对称轴的径向分布的均匀性。

公开(公告)号：US07955986B2

公开(公告)日：2011-06-07

申请号：US11360944

申请日：2006-02-23

申请人： Daniel J. Hoffman ,  Matthew L. Miller ,  Jang Gyoo Yang ,  Heeyeop Chae ,  Michael Barnes ,  Tetsuya Ishikawa ,  Yan Ye

发明人： Daniel J. Hoffman ,  Matthew L. Miller ,  Jang Gyoo Yang ,  Heeyeop Chae ,  Michael Barnes ,  Tetsuya Ishikawa ,  Yan Ye

IPC分类号： H05H1/40 ,  C23C16/00 ,  C23C16/505 ,  C23C16/52 ,  H01L21/3065

CPC分类号： H01J37/32091 ,  H01J37/3244 ,  H01J37/32623 ,  H01J37/3266

摘要： A plasma reactor includes a vacuum enclosure including a side wall and a ceiling defining a vacuum chamber, and a workpiece support within the chamber and facing the ceiling for supporting a planar workpiece, the workpiece support and the ceiling together defining a processing region between the workpiece support and the ceiling. Process gas inlets furnish a process gas into the chamber. A plasma source power electrode is connected to an RF power generator for capacitively coupling plasma source power into the chamber for maintaining a plasma within the chamber. The reactor further includes at least a first overhead solenoidal electromagnet adjacent the ceiling, the overhead solenoidal electromagnet, the ceiling, the side wall and the workpiece support being located along a common axis of symmetry. A current source is connected to the first solenoidal electromagnet and furnishes a first electric current in the first solenoidal electromagnet whereby to generate within the chamber a magnetic field which is a function of the first electric current, the first electric current having a value such that the magnetic field increases uniformity of plasma ion density radial distribution about the axis of symmetry near a surface of the workpiece support.

摘要翻译： 等离子体反应器包括真空外壳，其包括限定真空室的侧壁和顶板，以及腔室内的工件支撑件，并面向天花板以支撑平面工件，工件支撑件和天花板一起限定了工件之间的加工区域 支持和天花板。 工艺气体入口将工艺气体提供到腔室中。 等离子体源功率电极连接到RF功率发生器，用于将等离子体源功率电容耦合到腔室中，以在腔室内维持等离子体。 反应器还包括至少第一架空螺线管电磁体，靠近天花板，架空螺线管电磁体，天花板，侧壁和工件支撑件沿着共同的对称轴线定位。 电流源连接到第一螺线管电磁体并且在第一螺线管电磁体中提供第一电流，从而在腔室内产生与第一电流有关的磁场，第一电流具有使得 磁场增加等离子体离子密度在工件支撑表面附近的对称轴的径向分布的均匀性。

公开(公告)号：US20110201134A1

公开(公告)日：2011-08-18

申请号：US13081005

申请日：2011-04-06

申请人： Daniel J. Hoffman ,  Matthew L. Miller ,  Jang Gyoo Yang ,  Heeyeop Chae ,  Michael Barnes ,  Tetsuya Ishikawa ,  Yan Ye

发明人： Daniel J. Hoffman ,  Matthew L. Miller ,  Jang Gyoo Yang ,  Heeyeop Chae ,  Michael Barnes ,  Tetsuya Ishikawa ,  Yan Ye

IPC分类号： H01L21/66 ,  H01L21/3065

CPC分类号： H01J37/32091 ,  H01J37/3244 ,  H01J37/32623 ,  H01J37/3266

摘要： A plasma reactor includes a vacuum enclosure including a side wall and a ceiling defining a vacuum chamber, and a workpiece support within the chamber and facing the ceiling for supporting a planar workpiece, the workpiece support and the ceiling together defining a processing region between the workpiece support and the ceiling. Process gas inlets furnish a process gas into the chamber. A plasma source power electrode is connected to an RF power generator for capacitively coupling plasma source power into the chamber for maintaining a plasma within the chamber. The reactor further includes at least a first overhead solenoidal electromagnet adjacent the ceiling, the overhead solenoidal electromagnet, the ceiling, the side wall and the workpiece support being located along a common axis of symmetry. A current source is connected to the first solenoidal electromagnet and furnishes a first electric current in the first solenoidal electromagnet whereby to generate within the chamber a magnetic field which is a function of the first electric current, the first electric current having a value such that the magnetic field increases uniformity of plasma ion density radial distribution about the axis of symmetry near a surface of the workpiece support.

摘要翻译： 等离子体反应器包括真空外壳，其包括限定真空室的侧壁和顶板，以及腔室内的工件支撑件，并面向天花板以支撑平面工件，工件支撑件和天花板一起限定了工件之间的加工区域 支持和天花板。 工艺气体入口将工艺气体提供到腔室中。 等离子体源功率电极连接到RF功率发生器，用于将等离子体源功率电容耦合到腔室中，以在腔室内维持等离子体。 反应器还包括至少第一架空螺线管电磁体，靠近天花板，架空螺线管电磁体，天花板，侧壁和工件支撑件沿着共同的对称轴线定位。 电流源连接到第一螺线管电磁体并且在第一螺线管电磁体中提供第一电流，从而在腔室内产生与第一电流有关的磁场，第一电流具有使得 磁场增加等离子体离子密度在工件支撑表面附近的对称轴的径向分布的均匀性。

公开(公告)号：US20100041207A1

公开(公告)日：2010-02-18

申请号：US12193162

申请日：2008-08-18

申请人： Young S. Lee ,  Ying Rui ,  Dmitry Lubomirsky ,  Daniel J. Hoffman ,  Jang Gyoo Yang ,  Anchuan Wang

发明人： Young S. Lee ,  Ying Rui ,  Dmitry Lubomirsky ,  Daniel J. Hoffman ,  Jang Gyoo Yang ,  Anchuan Wang

IPC分类号： H01L21/762

CPC分类号： H01L21/76224 ,  C23C16/045 ,  H01L21/02164 ,  H01L21/02274 ,  H01L21/02304 ,  H01L21/31116 ,  H01L21/31612

摘要： A high density plasma dep/etch/dep method of depositing a dielectric film into a gap between adjacent raised structures on a substrate disposed in a substrate processing chamber. The method deposits a first portion of the dielectric film within the gap by forming a high density plasma from a first gaseous mixture flown into the process chamber, etches the deposited first portion of the dielectric film by flowing an etchant gas comprising CxFy, where a ratio of x to y is greater than or equal to 1:2 and then deposits a second portion of the dielectric film over the first portion by forming a high density plasma from a second gaseous mixture flown into the process chamber.

摘要翻译： 将介电膜沉积在设置在基板处理室中的基板上的相邻凸起结构之间的间隙中的高密度等离子体蚀刻/蚀刻/蚀刻方法。 该方法通过从流入处理室的第一气体混合物形成高密度等离子体，将电介质膜的第一部分沉积在间隙内，通过流过包含CxFy的蚀刻剂气体来蚀刻沉积的电介质膜的第一部分， 的x至y大于或等于1：2，然后通过从流入处理室的第二气态混合物形成高密度等离子体，将第二部分电介质膜沉积在第一部分上。

公开(公告)号：US20090140828A1

公开(公告)日：2009-06-04

申请号：US11934197

申请日：2007-11-02

申请人： Steven C. Shannon ,  Daniel J. Hoffman ,  Matthew L. Miler ,  Olga Regelman ,  Kenneth S. Collins ,  Kartik Ramaswamy ,  Kallol Bera

发明人： Steven C. Shannon ,  Daniel J. Hoffman ,  Matthew L. Miler ,  Olga Regelman ,  Kenneth S. Collins ,  Kartik Ramaswamy ,  Kallol Bera

IPC分类号： H01P7/04

CPC分类号： H05H1/0081 ,  H01J37/32091 ,  H01J37/32174

摘要： Methods and apparatus for controlling characteristics of a plasma, such as the spatial distribution of RF power and plasma uniformity, are provided herein. In some embodiments, an apparatus for controlling characteristics of a plasma includes a resonator for use in conjunction with a plasma reactor, the resonator including a source resonator for receiving an RF signal having a first frequency; a return path resonator disposed substantially coaxially with, and at least partially within, the source resonator; and an outer conductor having the source resonator and the return path resonator disposed substantially coaxially with, and at least partially within, the outer conductor, the outer conductor for providing an RF ground connection.

摘要翻译： 本文提供了用于控制等离子体特性的方法和装置，例如RF功率和等离子体均匀性的空间分布。 在一些实施例中，用于控制等离子体特性的装置包括与等离子体电抗器结合使用的谐振器，所述谐振器包括用于接收具有第一频率的RF信号的源谐振器; 与所述源谐振器基本同轴并且至少部分地在所述源谐振器内设置的返回路径谐振器; 以及具有源极谐振器和返回路径谐振器的外部导体，该外部导体与外部导体大致同轴并至少部分地设置，外部导体用于提供RF接地连接。

公开(公告)号：US07777599B2

公开(公告)日：2010-08-17

申请号：US11934197

申请日：2007-11-02

申请人： Steven C. Shannon ,  Daniel J. Hoffman ,  Matthew L. Miller ,  Olga Regelman ,  Kenneth S. Collins ,  Kartik Ramaswamy ,  Kallol Bera

发明人： Steven C. Shannon ,  Daniel J. Hoffman ,  Matthew L. Miller ,  Olga Regelman ,  Kenneth S. Collins ,  Kartik Ramaswamy ,  Kallol Bera

IPC分类号： H01P7/06 ,  H05B31/26

CPC分类号： H05H1/0081 ,  H01J37/32091 ,  H01J37/32174

摘要： Methods and apparatus for controlling characteristics of a plasma, such as the spatial distribution of RF power and plasma uniformity, are provided herein. In some embodiments, an apparatus for controlling characteristics of a plasma includes a resonator for use in conjunction with a plasma reactor, the resonator including a source resonator for receiving an RF signal having a first frequency; a return path resonator disposed substantially coaxially with, and at least partially within, the source resonator; and an outer conductor having the source resonator and the return path resonator disposed substantially coaxially with, and at least partially within, the outer conductor, the outer conductor for providing an RF ground connection.

摘要翻译： 本文提供了用于控制等离子体特性的方法和装置，例如RF功率和等离子体均匀性的空间分布。 在一些实施例中，用于控制等离子体特性的装置包括与等离子体电抗器结合使用的谐振器，所述谐振器包括用于接收具有第一频率的RF信号的源谐振器; 与所述源谐振器基本同轴并且至少部分地在所述源谐振器内设置的返回路径谐振器; 以及具有源极谐振器和返回路径谐振器的外部导体，该外部导体与外部导体大致同轴并至少部分地设置，外部导体用于提供RF接地连接。

公开(公告)号：US20080110567A1

公开(公告)日：2008-05-15

申请号：US11751575

申请日：2007-05-21

申请人： Matthew L. Miller ,  Daniel J. Hoffman ,  Steven C. Shannon ,  Michael Kutney ,  James Carducci ,  Andrew Nguyen

发明人： Matthew L. Miller ,  Daniel J. Hoffman ,  Steven C. Shannon ,  Michael Kutney ,  James Carducci ,  Andrew Nguyen

IPC分类号： H01L21/306

CPC分类号： H01J37/32633 ,  H01J37/3244 ,  H01J37/32449

摘要： A plasma reactor with plasma confinement and plasma radial distribution capability. The reactor comprises a reactor chamber including a side wall and a workpiece support pedestal in the chamber and defining a pumping annulus between the pedestal and side wall and a pumping port at a bottom of the pumping annulus. The reactor further comprises a means for confining gas flow in an axial direction through the pumping annulus to prevent plasma from flowing to the pumping port. The reactor further comprises a means for compensating for asymmetry of gas flow pattern across the pedestal arising from placement of the pumping port. The reactor further comprises a means for controlling plasma distribution having an inherent tendency to promote edge-high plasma density distribution. The means for confining gas flow is depressed below the workpiece support sufficiently to compensate for the edge-high plasma distribution tendency of the means for controlling plasma distribution.

摘要翻译： 一种具有等离子体约束和等离子体径向分布能力的等离子体反应器。 该反应器包括反应室，该反应室包括室中的侧壁和工件支撑基座，并且在基座和侧壁之间限定了泵送环形空间以及在泵送环空的底部的泵送端口。 反应器还包括用于将气流沿轴向限制通过泵送环的装置，以防止等离子体流到泵送端口。 所述反应器还包括用于补偿穿过所述基座的由所述泵送端口的放置产生的气流图案的不对称性的装置。 反应器还包括用于控制具有促进边缘 - 高等离子体密度分布的固有倾向的等离子体分布的装置。 用于限制气流的装置在工件支撑下方被压下，足以补偿用于控制等离子体分布的装置的边缘 - 高等离子体分布趋势。

公开(公告)号：US20080110860A1

公开(公告)日：2008-05-15

申请号：US11751592

申请日：2007-05-21

申请人： Matthew L. Miller ,  Daniel J. Hoffman ,  Steven C. Shannon ,  Michael Kutney ,  James Carducci ,  Andrew Nguyen

发明人： Matthew L. Miller ,  Daniel J. Hoffman ,  Steven C. Shannon ,  Michael Kutney ,  James Carducci ,  Andrew Nguyen

IPC分类号： H01L21/302

CPC分类号： H01J37/3266 ,  H01J37/32623 ,  H01J37/32633 ,  H01J37/32697

摘要： A method for processing a workpiece in a plasma reactor. The method comprises constraining plasma in the chamber away from the floor of the pumping annulus, providing an annular baffle while compensating for asymmetry of gas flow attributable to the pumping port, and providing a gas flow equalizer below the baffle having an eccentrically shaped opening. The method further includes modifying the radial distribution of plasma ion density and providing a magnetic plasma steering field having an edge high plasma ion density distribution tendency. The method further comprises locating the baffle at a sufficient distance below the workpiece to provide an edge low plasma ion density distribution tendency that compensates the edge high plasma ion density distribution tendency of the magnetic plasma steering field.

摘要翻译： 一种在等离子体反应器中处理工件的方法。 该方法包括将腔室中的等离子体约束在泵送环空的地板之外，提供环形挡板，同时补偿归因于泵送端口的气流的不对称性，以及在挡板下方提供具有偏心形状的开口的气流均衡器。 该方法还包括修改等离子体离子密度的径向分布并提供具有边缘高等离子体离子密度分布倾向的磁等离子体转向场。 该方法还包括将挡板定位在工件下方足够的距离处，以提供补偿磁等离子体转向场的边缘高等离子体离子密度分布趋势的边缘低等离子体离子密度分布趋势。

公开(公告)号：US07780866B2

公开(公告)日：2010-08-24

申请号：US11751592

申请日：2007-05-21

申请人： Matthew L. Miller ,  Daniel J. Hoffman ,  Steven C. Shannon ,  Michael Kutney ,  James Carducci ,  Andrew Nguyen

发明人： Matthew L. Miller ,  Daniel J. Hoffman ,  Steven C. Shannon ,  Michael Kutney ,  James Carducci ,  Andrew Nguyen

IPC分类号： B44C1/22 ,  C03C15/00 ,  C03C25/68 ,  C23F1/00

CPC分类号： H01J37/3266 ,  H01J37/32623 ,  H01J37/32633 ,  H01J37/32697

摘要： A method for processing a workpiece in a plasma reactor. The method comprises constraining plasma in the chamber away from the floor of the pumping annulus, providing an annular baffle while compensating for asymmetry of gas flow attributable to the pumping port, and providing a gas flow equalizer below the baffle having an eccentrically shaped opening. The method further includes modifying the radial distribution of plasma ion density and providing a magnetic plasma steering field having an edge high plasma ion density distribution tendency. The method further comprises locating the baffle at a sufficient distance below the workpiece to provide an edge low plasma ion density distribution tendency that compensates the edge high plasma ion density distribution tendency of the magnetic plasma steering field.

摘要翻译： 一种在等离子体反应器中处理工件的方法。 该方法包括将腔室中的等离子体约束在泵送环空的地板之外，提供环形挡板，同时补偿归因于泵送端口的气流的不对称性，以及在挡板下方提供具有偏心形状的开口的气流均衡器。 该方法还包括修改等离子体离子密度的径向分布并提供具有边缘高等离子体离子密度分布倾向的磁等离子体转向场。 该方法还包括将挡板定位在工件下方足够的距离处，以提供补偿磁等离子体转向场的边缘高等离子体离子密度分布趋势的边缘低等离子体离子密度分布趋势。