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1.发明授权Apparatus and method to confine plasma and reduce flow resistance in a plasma 失效限制等离子体并降低等离子体反应器中的流动阻力的装置和方法公开(公告)号：US07754997B2
公开(公告)日：2010-07-13
申请号：US11924086
申请日：2007-10-25
申请人： Kallol Bera , Yan Ye , James D. Carducci , Daniel J. Hoffman , Steven C. Shannon , Douglas A. Buchberger, Jr.
发明人： Kallol Bera , Yan Ye , James D. Carducci , Daniel J. Hoffman , Steven C. Shannon , Douglas A. Buchberger, Jr.
IPC分类号： B23K9/00
CPC分类号： H01J37/321 , H01J37/32633 , H01J37/3266
摘要： An apparatus configured to confine a plasma within a processing region in a plasma processing chamber. In one embodiment, the apparatus includes a ring that has a baffle having a plurality of slots and a plurality of fingers. Each slot is configured to have a width less than the thickness of a plasma sheath contained in the processing region.
摘要翻译： 一种被配置为将等离子体限制在等离子体处理室中的处理区域内的装置。 在一个实施例中，该装置包括具有挡板的环，该挡板具有多个槽和多个指状物。 每个槽被构造成具有小于包含在处理区域中的等离子体护套的厚度的宽度。
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2.发明授权Apparatus and method to confine plasma and reduce flow resistance in a plasma reactor 有权限制等离子体并降低等离子体反应器中的流动阻力的装置和方法公开(公告)号：US07585384B2
公开(公告)日：2009-09-08
申请号：US12201156
申请日：2008-08-29
申请人： Kallol Bera , Yan Ye , James D. Carducci , Daniel J. Hoffman , Steven C. Shannon , Douglas A. Buchberger, Jr.
发明人： Kallol Bera , Yan Ye , James D. Carducci , Daniel J. Hoffman , Steven C. Shannon , Douglas A. Buchberger, Jr.
IPC分类号： C23C1/00 , H01L21/306 , C23C16/00
CPC分类号： H01J37/321 , H01J37/32633 , H01J37/3266
摘要： An apparatus configured to confine a plasma within a processing region in a plasma processing chamber. In one embodiment, the apparatus includes a ring that has a baffle having a plurality of slots and a plurality of fingers. Each slot is configured to have a width less than the thickness of a plasma sheath contained in the processing region.
摘要翻译： 一种被配置为将等离子体限制在等离子体处理室中的处理区域内的装置。 在一个实施例中，该装置包括具有挡板的环，该挡板具有多个槽和多个指状物。 每个槽被构造成具有小于包含在处理区域中的等离子体护套的厚度的宽度。
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3.发明授权Apparatus and method to confine plasma and reduce flow resistance in a plasma reactor 失效限制等离子体并降低等离子体反应器中的流动阻力的装置和方法公开(公告)号：US07972467B2
公开(公告)日：2011-07-05
申请号：US10418996
申请日：2003-04-17
申请人： Kallol Bera , Yan Ye , James D. Carducci , Daniel J. Hoffman , Steven C. Shannon , Douglas A. Buchberger, Jr.
发明人： Kallol Bera , Yan Ye , James D. Carducci , Daniel J. Hoffman , Steven C. Shannon , Douglas A. Buchberger, Jr.
IPC分类号： C23F1/00 , H01L21/306 , C23C16/00
CPC分类号： H01J37/321 , H01J37/32633 , H01J37/3266
摘要： An apparatus configured to confine a plasma within a processing region in a plasma processing chamber. In one embodiment, the apparatus includes a ring that has a baffle having a plurality of slots and a plurality of fingers. Each slot is configured to have a width less than the thickness of a plasma sheath contained in the processing region.
摘要翻译： 一种被配置为将等离子体限制在等离子体处理室中的处理区域内的装置。 在一个实施例中，该装置包括具有挡板的环，该挡板具有多个槽和多个指状物。 每个槽被构造成具有小于包含在处理区域中的等离子体护套的厚度的宽度。
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4.发明申请APPARATUS AND METHOD TO CONFINE PLASMA AND REDUCE FLOW RESISTANCE IN A PLASMA REACTOR 失效限制等离子体并降低等离子体反应器中的流动阻力的装置和方法公开(公告)号：US20080105660A1
公开(公告)日：2008-05-08
申请号：US11924086
申请日：2007-10-25
申请人： Kallol Bera , Yan Ye , James D. Carducci , Daniel J. Hoffman , Steven C. Shannon , Douglas A. Buchberger
发明人： Kallol Bera , Yan Ye , James D. Carducci , Daniel J. Hoffman , Steven C. Shannon , Douglas A. Buchberger
IPC分类号： B23K9/00
CPC分类号： H01J37/321 , H01J37/32633 , H01J37/3266
摘要： An apparatus configured to confine a plasma within a processing region in a plasma processing chamber. In one embodiment, the apparatus includes a ring that has a baffle having a plurality of slots and a plurality of fingers. Each slot is configured to have a width less than the thickness of a plasma sheath contained in the processing region.
摘要翻译： 一种被配置为将等离子体限制在等离子体处理室中的处理区域内的装置。 在一个实施例中，该装置包括具有挡板的环，该挡板具有多个槽和多个指状物。 每个槽被构造成具有小于包含在处理区域中的等离子体护套的厚度的宽度。
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公开(公告)号：US20080314522A1
公开(公告)日：2008-12-25
申请号：US12201156
申请日：2008-08-29
申请人： Kallol Bera , Yan Ye , James D. Carducci , Daniel J. Hoffman , Steven C. Shannon , Douglas A. Buchberger, JR.
发明人： Kallol Bera , Yan Ye , James D. Carducci , Daniel J. Hoffman , Steven C. Shannon , Douglas A. Buchberger, JR.
IPC分类号： C23F1/08
CPC分类号： H01J37/321 , H01J37/32633 , H01J37/3266
摘要： An apparatus configured to confine a plasma within a processing region in a plasma processing chamber. In one embodiment, the apparatus includes a ring that has a baffle having a plurality of slots and a plurality of fingers. Each slot is configured to have a width less than the thickness of a plasma sheath contained in the processing region.
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公开(公告)号：US08876024B2
公开(公告)日：2014-11-04
申请号：US11972072
申请日：2008-01-10
IPC分类号： B05B1/14 , C23C16/455 , H01J37/32 , C23C16/44
CPC分类号： H01J37/3244 , B32B43/00 , C23C16/4412 , C23C16/45565 , C23C16/4557 , C23C16/45591 , H01J37/32449 , H01J37/32724 , H01J2237/3343 , Y10T29/49815
摘要： The present invention generally comprises a heated showerhead assembly that may be used to supply processing gases into a processing chamber. The processing chamber may be an etching chamber. When processing gas is evacuated from the processing chamber, the uniform processing of the substrate may be difficult. As the processing gas is pulled away from the substrate and towards the vacuum pump, the plasma, in the case of etching, may not be uniform across the substrate. Uneven plasma may lead to uneven etching. To prevent uneven etching, the showerhead assembly may be separated into two zones each having independently controllable gas introduction and temperature control. The first zone corresponds to the perimeter of the substrate while the second zone corresponds to the center of the substrate. By independently controlling the temperature and the gas flow through the showerhead zones, etching uniformity of the substrate may be increased.
摘要翻译： 本发明通常包括可用于将处理气体供应到处理室中的加热喷头组件。 处理室可以是蚀刻室。 当处理气体从处理室排出时，衬底的均匀处理可能是困难的。 当处理气体从衬底被拉离并且朝向真空泵时，在蚀刻的情况下，等离子体在衬底上可能不均匀。 不均匀的等离子体可能导致不均匀的蚀刻。 为了防止不均匀的蚀刻，喷头组件可以分成两个区域，每个区域具有独立可控的气体引入和温度控制。 第一区域对应于衬底的周边，而第二区域对应于衬底的中心。 通过独立地控制温度和通过喷头区域的气体流动，可以增加基板的蚀刻均匀性。
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公开(公告)号：US20090179085A1
公开(公告)日：2009-07-16
申请号：US11972072
申请日：2008-01-10
CPC分类号： H01J37/3244 , B32B43/00 , C23C16/4412 , C23C16/45565 , C23C16/4557 , C23C16/45591 , H01J37/32449 , H01J37/32724 , H01J2237/3343 , Y10T29/49815
摘要： The present invention generally comprises a heated showerhead assembly that may be used to supply processing gases into a processing chamber. The processing chamber may be an etching chamber. When processing gas is evacuated from the processing chamber, the uniform processing of the substrate may be difficult. As the processing gas is pulled away from the substrate and towards the vacuum pump, the plasma, in the case of etching, may not be uniform across the substrate. Uneven plasma may lead to uneven etching. To prevent uneven etching, the showerhead assembly may be separated into two zones each having independently controllable gas introduction and temperature control. The first zone corresponds to the perimeter of the substrate while the second zone corresponds to the center of the substrate. By independently controlling the temperature and the gas flow through the showerhead zones, etching uniformity of the substrate may be increased.
摘要翻译： 本发明通常包括可用于将处理气体供应到处理室中的加热喷头组件。 处理室可以是蚀刻室。 当处理气体从处理室排出时，衬底的均匀处理可能是困难的。 当处理气体从衬底被拉离并且朝向真空泵时，在蚀刻的情况下，等离子体在衬底上可能不均匀。 不均匀的等离子体可能导致不均匀的蚀刻。 为了防止不均匀的蚀刻，喷头组件可以分成两个区域，每个区域具有独立可控的气体引入和温度控制。 第一区域对应于衬底的周边，而第二区域对应于衬底的中心。 通过独立地控制温度和通过喷头区域的气体流动，可以增加基板的蚀刻均匀性。
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8.发明授权Plasma process uniformity across a wafer by controlling a variable frequency coupled to a harmonic resonator 失效通过控制耦合到谐波谐振器的可变频率在晶片上的等离子体工艺均匀性公开(公告)号：US08080479B2
公开(公告)日：2011-12-20
申请号：US11733858
申请日：2007-04-11
申请人： Kenneth S. Collins , Hiroji Hanawa , Kartik Ramaswamy , Douglas A. Buchberger, Jr. , Shahid Rauf , Kallol Bera , Lawrence Wong , Walter R. Merry , Matthew L. Miller , Steven C. Shannon , Andrew Nguyen , James P. Cruse , James Carducci , Troy S. Detrick , Subhash Deshmukh , Jennifer Y. Sun
发明人： Kenneth S. Collins , Hiroji Hanawa , Kartik Ramaswamy , Douglas A. Buchberger, Jr. , Shahid Rauf , Kallol Bera , Lawrence Wong , Walter R. Merry , Matthew L. Miller , Steven C. Shannon , Andrew Nguyen , James P. Cruse , James Carducci , Troy S. Detrick , Subhash Deshmukh , Jennifer Y. Sun
IPC分类号： H01L21/302
CPC分类号： C23C16/45574 , C23C16/5096 , H01J37/32091 , H01J37/32165 , H01J37/32174 , H01L21/67069 , H01L21/6831
摘要： A method of processing a workpiece in a plasma reactor chamber includes coupling RF power via an electrode to plasma in the chamber, the RF power being of a variable frequency in a frequency range that includes a fundamental frequency f. The method also includes coupling the electrode to a resonator having a resonant VHF frequency F which is a harmonic of the fundamental frequency f, so as to produce VHF power at the harmonic. The method controls the ratio of power near the fundamental f to power at harmonic F, by controlling the proportion of power from the generator that is up-converted from f to F, so as to control plasma ion density distribution.
摘要翻译： 在等离子体反应器室中处理工件的方法包括经由电极将RF功率耦合到腔室中的等离子体，RF功率在包括基频f的频率范围内是可变频率的。 该方法还包括将电极耦合到具有作为基频f的谐波的谐振VHF频率F的谐振器，以便在谐波处产生VHF功率。 该方法通过控制从f向F转换为F的发电机的功率比例来控制基波f附近的功率与谐波F功率的比值，以便控制等离子体离子密度分布。
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9.发明申请PLASMA PROCESS UNIFORMITY ACROSS A WAFER BY CONTROLLING A VARIABLE FREQUENCY COUPLED TO A HARMONIC RESONATOR 失效通过控制与谐波谐振器耦合的可变频率，通过控制波形的等离子体处理均匀性公开(公告)号：US20080182418A1
公开(公告)日：2008-07-31
申请号：US11733858
申请日：2007-04-11
申请人： Kenneth S. Collins , Hiroji Hanawa , Kartik Ramaswamy , Douglas A. Buchberger , Shahid Rauf , Kallol Bera , Lawrence Wong , Walter R. Merry , Matthew L. Miller , Steven C. Shannon , Andrew Nguyen , James P. Cruse , James Carducci , Troy S. Detrick , Subhash Deshmukh , Jennifer Y. Sun
发明人： Kenneth S. Collins , Hiroji Hanawa , Kartik Ramaswamy , Douglas A. Buchberger , Shahid Rauf , Kallol Bera , Lawrence Wong , Walter R. Merry , Matthew L. Miller , Steven C. Shannon , Andrew Nguyen , James P. Cruse , James Carducci , Troy S. Detrick , Subhash Deshmukh , Jennifer Y. Sun
IPC分类号： H01L21/302 , H01L21/461
CPC分类号： C23C16/45574 , C23C16/5096 , H01J37/32091 , H01J37/32165 , H01J37/32174 , H01L21/67069 , H01L21/6831
摘要： A method of processing a workpiece in a plasma reactor chamber includes coupling RF power via an electrode to plasma in the chamber, the RF power being of a variable frequency in a frequency range that includes a fundamental frequency f. The method also includes coupling the electrode to a resonator having a resonant VHF frequency F which is a harmonic of the fundamental frequency f, so as to produce VHF power at the harmonic. The method controls the ratio of power near the fundamental f to power at harmonic F, by controlling the proportion of power from the generator that is up-converted from f to F, so as to control plasma ion density distribution.
摘要翻译： 在等离子体反应器室中处理工件的方法包括经由电极将RF功率耦合到腔室中的等离子体，RF功率在包括基频f的频率范围内是可变频率的。 该方法还包括将电极耦合到具有作为基频f的谐波的谐振VHF频率F的谐振器，以便在谐波处产生VHF功率。 该方法通过控制从f向F转换为F的发电机的功率比例来控制基波f附近的功率与谐波F功率的比值，以便控制等离子体离子密度分布。
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10.发明申请PLASMA PROCESS UNIFORMITY ACROSS A WAFER BY APPORTIONING GROUND RETURN PATH IMPEDANCES AMONG PLURAL VHF SOURCES 失效等离子体过程通过分配地面返回路径在一个等离子体频率范围内均匀化公开(公告)号：US20080182417A1
公开(公告)日：2008-07-31
申请号：US11733767
申请日：2007-04-11
申请人： Kenneth S. Collins , Hiroji Hanawa , Kartik Ramaswamy , Douglas A. Buchberger , Shahid Rauf , Kallol Bera , Lawrence Wong , Walter R. Merry , Matthew L. Miller , Steven C. Shannon , Andrew Nguyen , James P. Cruse , James Carducci , Troy S. Detrick , Subhash Deshmukh , Jennifer Y. Sun
发明人： Kenneth S. Collins , Hiroji Hanawa , Kartik Ramaswamy , Douglas A. Buchberger , Shahid Rauf , Kallol Bera , Lawrence Wong , Walter R. Merry , Matthew L. Miller , Steven C. Shannon , Andrew Nguyen , James P. Cruse , James Carducci , Troy S. Detrick , Subhash Deshmukh , Jennifer Y. Sun
IPC分类号： H01L21/302 , H01L21/461
CPC分类号： C23C16/45574 , C23C16/5096 , H01J37/32091 , H01J37/32165 , H01J37/32174 , H01L21/67069 , H01L21/6831
摘要： In a plasma reactor chamber a ceiling electrode and a workpiece support electrode, respective RF power sources of respective VHF frequencies f1 and f2 are coupled to either respective ones of the electrodes or to a common one of the electrodes, where f1 is sufficiently high to produce a center-high non-uniform plasma ion distribution and f2 is sufficiently low to produce a center-low non-uniform plasma ion distribution. Respective center ground return paths are provided for RF current passing directly between the ceiling electrode and the workpiece support electrode for the frequencies f1 and f2, and an edge ground return path is provided for each of the frequencies f1 and f2. The impedance of at least one of the ground return paths is adjusted so as to control the uniformity of the plasma ion density distribution.
摘要翻译： 在等离子体反应器室中，天花板电极和工件支撑电极，各个VHF频率f1和f2的相应RF功率源耦合到电极中的相应电极或共同的一个电极，其中f1足够高以产生 中心高的不均匀等离子体离子分布和f2足够低以产生中心 - 低不均匀的等离子体离子分布。 提供各自的中心接地返回路径用于频率f1和f2直接通过天花板电极和工件支撑电极之间的RF电流，并为每个频率f1和f2提供边缘接地返回路径。 调整至少一个接地返回路径的阻抗，以便控制等离子体离子密度分布的均匀性。
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