公开(公告)号：US20130240144A1

公开(公告)日：2013-09-19

申请号：US13418574

申请日：2012-03-13

申请人： Douglas A. Buchberger ,  Shane Nevil ,  Kartik Ramaswamy ,  Kenneth Collins ,  Richard Fovell

发明人： Douglas A. Buchberger ,  Shane Nevil ,  Kartik Ramaswamy ,  Kenneth Collins ,  Richard Fovell

IPC分类号： F28F27/02 ,  F28F27/00 ,  B05C11/00 ,  F28D15/00

CPC分类号： H01J37/32522 ,  G05D23/1393 ,  H01J37/32724

摘要： A plasma processing apparatus and method to control a temperature of a chamber component therein. A process chamber may include a temperature controlled chamber component and at least one remote heat transfer fluid loop comprising a first heat exchanger having a primary side in fluid communication with a heat sink or heat source, and a local heat transfer fluid loop placing the chamber component in fluid communication with a secondary side of the first heat exchanger. The local loop may be of significantly smaller fluid volume than the remote loop(s) and circulated to provide thermal load of uniform temperature. Temperature control of heat transfer fluid in the local loop and temperature control of the chamber component may be implemented with a cascaded control algorithm.

摘要翻译： 一种用于控制室内部件的温度的等离子体处理装置和方法。 处理室可以包括温度控制室部件和至少一个远程传热流体回路，其包括具有与散热器或热源流体连通的初级侧的第一热交换器和局部传热流体回路，其将腔室部件 与第一热交换器的次级侧流体连通。 局部回路的流体体积可能远小于远程回路，并循环以提供均匀温度的热负荷。 局部回路中传热流体的温度控制和腔室部件的温度控制可以用级联控制算法实现。

公开(公告)号：US08076247B2

公开(公告)日：2011-12-13

申请号：US11733770

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 is provided for processing a workpiece in a plasma reactor chamber. The method includes coupling, to a plasma in the chamber, power of an RF frequency via a ceiling electrode and coupling, to the plasma, power of at least approximately the same RF frequency via a workpiece support electrode. The method also includes providing an edge ground return path. The method further includes adjusting the proportion between (a) current flow between said electrodes and (b) current flow to the edge ground return path from said electrodes, to control plasma ion density distribution uniformity over the workpiece.

摘要翻译： 提供了一种用于在等离子体反应器室中处理工件的方法。 该方法包括通过天线电极将等离子体耦合到腔室中的等离子体，并通过工件支撑电极将等离子体的功率耦合到至少近似相同的RF频率。 该方法还包括提供边缘接地返回路径。 该方法还包括调节（a）所述电极之间的电流之间的比例和（b）从所述电极到达边缘接地返回路径的电流，以控制工件上的等离子体离子密度分布均匀性。

公开(公告)号：US20100018648A1

公开(公告)日：2010-01-28

申请号：US12178032

申请日：2008-07-23

申请人： KENNETH S. COLLINS ,  Douglas A. Buchberger, JR. ,  Kartik Ramaswamy ,  Shahid Rauf ,  Hiroji Hanawa ,  Jennifer Y. Sun ,  Andrew Nguyen ,  Thorsten B. Lill ,  Meihua Shen

发明人： KENNETH S. COLLINS ,  Douglas A. Buchberger, JR. ,  Kartik Ramaswamy ,  Shahid Rauf ,  Hiroji Hanawa ,  Jennifer Y. Sun ,  Andrew Nguyen ,  Thorsten B. Lill ,  Meihua Shen

IPC分类号： H01L21/3065

CPC分类号： H01J37/32642 ,  H01J37/32082 ,  H01J37/32174 ,  H01J37/32623 ,  H01J2237/2001 ,  H01L21/6833

摘要： In an electrostatic chuck, RF bias power is separately applied to a workpiece and to a process kit collar surrounding the workpiece. At least one variable impedance element governed by a system controller adjusts the apportionment of RF bias power between the workpiece and the process kit collar, allowing dynamic adjustment of the plasma sheath electric field at the extreme edge of the workpiece, for optimum electric field uniformity under varying plasma conditions, for example.

摘要翻译： 在静电卡盘中，RF偏置功率分别施加到工件和围绕工件的处理套件套环。 由系统控制器控制的至少一个可变阻抗元件调节工件和工艺套件套环之间的RF偏置功率的分配，允许动态调整工件最末端处的等离子体护套电场，以获得最佳的电场均匀度 改变等离子体条件。

公开(公告)号：US20080179011A1

公开(公告)日：2008-07-31

申请号：US11734040

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： C23F1/00 ,  C23C16/00

CPC分类号： C23C16/45574 ,  C23C16/5096 ,  H01J37/32091 ,  H01J37/32165 ,  H01J37/32174 ,  H01L21/67069 ,  H01L21/6831

摘要： A plasma reactor includes an electrostatic chuck in the chamber for supporting the workpiece, a ceiling electrode facing the electrostatic chuck and an ESC electrode in the electrostatic chuck with an electrostatic clamping voltage supply coupled to the ESC electrode. The reactor further includes at least a first RF bias source of an LF or HF frequency coupled to the pedestal electrode, and first and second VHF power sources of different frequencies coupled to the same or to different ones of the electrodes. The first and second VHF power sources are of sufficiently high and sufficiently low frequencies, respectively, to produce center-high and center-low plasma distribution non-uniformities, respectively, in the chamber.

摘要翻译： 等离子体反应器包括用于支撑工件的室中的静电卡盘，面向静电卡盘的天花板电极和静电卡盘中的ESC电极，其具有耦合到ESC电极的静电钳位电压源。 反应器还包括耦合到基座电极的LF或HF频率的至少第一RF偏置源，以及耦合到相同或不同电极的不同频率的第一和第二VHF电源。 第一和第二VHF电源分别具有足够高和足够低的频率，以分别在腔室中产生中心高和中心低等离子体分布不均匀性。

公开(公告)号：US20120199071A1

公开(公告)日：2012-08-09

申请号：US13446732

申请日：2012-04-13

申请人： KENNETH S. COLLINS ,  Andrew N. Nguyen ,  Kartik Ramaswamy ,  Hiroji Hanawa ,  Douglas A. Buchberger, JR. ,  Daniel J. Hoffman ,  Amir Al-Bayati

发明人： KENNETH S. COLLINS ,  Andrew N. Nguyen ,  Kartik Ramaswamy ,  Hiroji Hanawa ,  Douglas A. Buchberger, JR. ,  Daniel J. Hoffman ,  Amir Al-Bayati

IPC分类号： C23C16/455 ,  C23C16/50

CPC分类号： H01J37/32458 ,  H01J37/32412 ,  H01J37/32477

摘要： Embodiments described herein relate to a plasma chamber and processing system utilizing robust components. In one embodiment, a chamber is provided. The chamber includes a body having an interior volume, a gas distribution assembly disposed in the interior volume opposing a substrate support, the gas distribution assembly having a coolant channel disposed thereon, and a first hollow conduit and a second hollow conduit coupled to the body and in fluid communication with the interior volume.

摘要翻译： 本文所述的实施例涉及使用鲁棒部件的等离子体室和处理系统。 在一个实施例中，提供了一个室。 所述腔室包括具有内部体积的本体，设置在所述内部体积中与衬底支撑件相对的气体分配组件，所述气体分配组件具有设置在其上的冷却剂通道，以及联接到所述主体的第一中空导管和第二中空导管， 与内部容积流体连通。

公开(公告)号：US20080179181A1

公开(公告)日：2008-07-31

申请号：US11733984

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： H05H1/00

CPC分类号： H01J37/32174 ,  H01J37/32091 ,  H01J37/32165

摘要： A method for processing a workpiece in a plasma reactor chamber includes coupling RF power at a first VHF frequency f1 to a plasma via one of the electrodes of the chamber, and providing a center ground return path for RF current passing directly between the ceiling electrode and the workpiece support electrode for the frequency f1. The method further includes providing a variable height edge ground annular element and providing a ground return path through the edge ground annular element for the frequency f1. The method controls the uniformity of plasma ion density distribution by controlling the distance between the variable height edge ground annular element and one of: (a) height of ceiling electrode or (b) height of workpiece support electrode.

摘要翻译： 用于在等离子体反应器室中处理工件的方法包括通过室的电极之一将RFF功率以第一VHF频率f 1耦合到等离子体，并且提供用于RF电流的中心接地返回路径，其直接通过天花板电极 工件支撑电极为频率f 1。 该方法还包括提供可变高度边缘接地环形元件，并为频率f 1提供通过边缘接地环形元件的接地返回路径。 该方法通过控制可变高度边缘接地环形元件之间的距离和（a）天花板电极的高度或（b）工件支撑电极的高度来控制等离子体离子密度分布的均匀性。

公开(公告)号：US09338871B2

公开(公告)日：2016-05-10

申请号：US12905624

申请日：2010-10-15

申请人： Chetan Mahadeswaraswamy ,  Walter R. Merry ,  Sergio Fukuda Shoji ,  Chunlei Zhang ,  Yashaswini B. Pattar ,  Duy D. Nguyen ,  Tina Tsong ,  Shane C. Nevil ,  Douglas A. Buchberger, Jr. ,  Fernando M. Silveira ,  Brad L. Mays ,  Kartik Ramaswamy ,  Hamid Noorbakhsh

发明人： Chetan Mahadeswaraswamy ,  Walter R. Merry ,  Sergio Fukuda Shoji ,  Chunlei Zhang ,  Yashaswini B. Pattar ,  Duy D. Nguyen ,  Tina Tsong ,  Shane C. Nevil ,  Douglas A. Buchberger, Jr. ,  Fernando M. Silveira ,  Brad L. Mays ,  Kartik Ramaswamy ,  Hamid Noorbakhsh

IPC分类号： G01L21/30 ,  G01R31/00 ,  H01L21/302 ,  H01L21/461 ,  H01L21/306 ,  C23F1/00 ,  H05H1/00 ,  H01J37/32

CPC分类号： H01J37/32009 ,  G05B6/02 ,  H01J37/3244 ,  H01J37/32715 ,  H01J37/32935 ,  H01J2237/334 ,  H05H1/0081

摘要： Methods and systems for controlling temperatures in plasma processing chamber with reduced controller response times and increased stability. Temperature control is based at least in part on a feedforward control signal derived from a plasma power input into the processing chamber. A feedforward control signal compensating disturbances in the temperature attributable to the plasma power may be combined with a feedback control signal counteracting error between a measured and desired temperature.

摘要翻译： 用于控制等离子体处理室中的温度的方法和系统，其具有减少的控制器响应时间和增加的稳定性。 温度控制至少部分地基于从输入到处理室的等离子体功率得到的前馈控制信号。 补偿由于等离子体功率引起的温度的干扰的前馈控制信号可以与测量温度和期望温度之间的反馈控制信号抵消误差相组合。

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。

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。

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。