Patents by Inventor Juan Carlos Rocha

Juan Carlos Rocha has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10325799
    Abstract: A method and apparatus for heating a substrate in a chamber are provided. an apparatus for positioning a substrate in a processing chamber. In one embodiment, the apparatus comprises a substrate support assembly having a support surface adapted to receive the substrate and a plurality of centering members for supporting the substrate at a distance parallel to the support surface and for centering the substrate relative to a reference axis substantially perpendicular to the support surface. The plurality of the centering members are movably disposed along a periphery of the support surface, and each of the plurality of centering members comprises a first end portion for either contacting or supporting a peripheral edge of the substrate.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: June 18, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Dale R. Du Bois, Juan Carlos Rocha-Alvarez, Sanjeev Baluja, Ganesh Balasubramanian, Lipyeow Yap, Jianhua Zhou, Thomas Nowak
  • Patent number: 10325800
    Abstract: Techniques are disclosed for methods and apparatuses for increasing the breakdown voltage while substantially reducing the voltage leakage of an electrostatic chuck at temperatures exceeding about 300 degrees Celsius in a processing chamber.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: June 18, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Prashant Kulshreshtha, Kwangduk Douglas Lee, Bok Hoen Kim, Zheng John Ye, Swayambhu Prasad Behera, Ganesh Balasubramanian, Juan Carlos Rocha-Alvarez, Jian J. Chen
  • Publication number: 20190177848
    Abstract: Embodiments provide a plasma processing apparatus, substrate support assembly, and method of controlling a plasma process. The apparatus and substrate support assembly include a substrate support pedestal, a tuning assembly that includes a tuning electrode that is disposed in the pedestal and electrically coupled to a radio frequency (RF) tuner, and a heating assembly that includes one or more heating elements disposed within the pedestal for controlling a temperature profile of the substrate, where at least one of the heating elements is electrically coupled to an RF filter circuit that includes a first inductor configured in parallel with a formed capacitance of the first inductor to ground. The high impedance of the RF filters can be achieved by tuning the resonance of the RF filter circuit, which results in less RF leakage and better substrate processing results.
    Type: Application
    Filed: November 13, 2018
    Publication date: June 13, 2019
    Inventors: Jian J. CHEN, Mohamad A. AYOUB, Juan Carlos ROCHA-ALVAREZ, Zheng John YE, Ramprakash SANKARAKRISHNAN, Jianhua ZHOU
  • Publication number: 20190153592
    Abstract: Embodiments of the invention contemplate a shadow ring that provides increased or decreased and more uniform deposition on the edge of a wafer. By removing material from the top and/or bottom surfaces of the shadow ring, increased edge deposition and bevel coverage can be realized. In one embodiment, the material on the bottom surface is reduced by providing a recessed slot on the bottom surface. By increasing the amount of material of the shadow ring, the edge deposition and bevel coverage is reduced. Another approach to adjusting the deposition at the edge of the wafer includes increasing or decreasing the inner diameter of the shadow ring. The material forming the shadow ring may also be varied to change the amount of deposition at the edge of the wafer.
    Type: Application
    Filed: January 28, 2019
    Publication date: May 23, 2019
    Inventors: Dale Du BOIS, Mohamad A. AYOUB, Robert KIM, Amit Kumar BANSAL, Mark FODOR, Binh NGUYEN, Siu F. CHENG, Hang YU, Chiu CHAN, Ganesh BALASUBRAMANIAN, Deenesh PADHI, Juan Carlos ROCHA
  • Patent number: 10276353
    Abstract: A method and apparatus for a dual-channel showerhead is provided. In one embodiment the showerhead comprises a body comprising a conductive material having a plurality of first openings formed therethrough comprising a first gas channel and a plurality of second openings formed therethrough comprising a second gas channel that is fluidly separated from the first gas channel, wherein each of the first openings having a geometry that is different than each of the second openings.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: April 30, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Kaushik Alayavalli, Xinhai Han, Praket P. Jha, Masaki Ogata, Zhijun Jiang, Allen Ko, Ndanka O. Mukuti, Thuy Britcher, Amit Kumar Bansal, Ganesh Balasubramanian, Juan Carlos Rocha-Alvarez, Bok Hoen Kim
  • Patent number: 10266943
    Abstract: Implementations described herein protect a substrate support from corrosive cleaning gases used at high temperatures. In one embodiment, a substrate support has a shaft and a heater. The heater has a body. The body has a top surface, a side surface and a bottom surface. The top surface is configured to support a substrate during plasma processing of the substrate. A covering is provided for at least two of the top surface, side surface and bottom surface. The covering is selected to resist corrosion of the body at temperatures in excess of about 400 degrees Celsius.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: April 23, 2019
    Assignee: Applied Materials, Inc.
    Inventors: Abdul Aziz Khaja, Ren-Guan Duan, Amit Kumar Bansal, Jianhua Zhou, Juan Carlos Rocha-Alvarez
  • Publication number: 20190100839
    Abstract: The present disclosure relates to a semiconductor processing apparatus. The processing chamber includes a chamber body and lid defining an interior volume, a substrate support disposed in the interior volume and a showerhead assembly disposed between the lid and the substrate support. The showerhead assembly includes a faceplate configured to deliver a process gas to a processing region defined between the showerhead assembly and the substrate support and an underplate positioned above the faceplate, defining a first plenum between the lid and the underplate, the having multiple zones, wherein each zone has a plurality of openings that are configured to pass an amount of inert gas from the first plenum into a second plenum defined between the faceplate and the underplate, in fluid communication with the plurality of openings of each zone such that the inert gas mixes with the process gas before exiting the showerhead assembly.
    Type: Application
    Filed: November 15, 2018
    Publication date: April 4, 2019
    Inventors: Amit Kumar BANSAL, Juan Carlos ROCHA-ALVAREZ, Sanjeev BALUJA, Sam H. KIM, Tuan Anh NGUYEN
  • Patent number: 10233543
    Abstract: The present disclosure relates to a semiconductor processing apparatus. The processing chamber includes a chamber body and lid defining an interior volume, a substrate support disposed in the interior volume and a showerhead assembly disposed between the lid and the substrate support. The showerhead assembly includes a faceplate configured to deliver a process gas to a processing region defined between the showerhead assembly and the substrate support and a underplate positioned above the faceplate, defining a first plenum between the lid and the underplate, the having multiple zones, wherein each zone has a plurality of openings that are configured to pass an amount of inert gas from the first plenum into a second plenum defined between the faceplate and the underplate, in fluid communication with the plurality of openings of each zone such that the inert gas mixes with the process gas before exiting the showerhead assembly.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: March 19, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Amit Kumar Bansal, Juan Carlos Rocha-Alvarez, Sanjeev Baluja, Sam H. Kim, Tuan Anh Nguyen
  • Patent number: 10236197
    Abstract: An apparatus and method for processing a substrate in a processing system containing a deposition chamber, a treatment chamber, and an isolation region, separating the deposition chamber from the treatment is described herein. The deposition chamber deposits a film on a substrate. The treatment chamber receives the substrate from the deposition chamber and alters the film deposited in the deposition chamber with a film property altering device. Processing systems and methods are provided in accordance with the above embodiment and other embodiments.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: March 19, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Karthik Janakiraman, Abhijit Basu Mallick, Hari K. Ponnekanti, Mandyam Sriram, Alexandros T. Demos, Mukund Srinivasan, Juan Carlos Rocha-Alvarez, Dale R. Dubois
  • Publication number: 20190080916
    Abstract: An apparatus for plasma processing a substrate is provided. The apparatus comprises a processing chamber, a substrate support disposed in the processing chamber, and a lid assembly coupled to the processing chamber. The lid assembly comprises a conductive gas distributor coupled to a power source. A tuning electrode may be disposed between the conductive gas distributor and the chamber body for adjusting a ground pathway of the plasma. A second tuning electrode may be coupled to the substrate support, and a bias electrode may also be coupled to the substrate support.
    Type: Application
    Filed: November 13, 2018
    Publication date: March 14, 2019
    Inventors: Juan Carlos ROCHA-ALVAREZ, Amit Kumar BANSAL, Ganesh BALASUBRAMANIAN, Jianhua ZHOU, Ramprakash SANKARAKRISHNAN, Mohamad A. AYOUB, Jian J. CHEN
  • Patent number: 10227695
    Abstract: Embodiments of the invention contemplate a shadow ring that provides increased or decreased and more uniform deposition on the edge of a wafer. By removing material from the top and/or bottom surfaces of the shadow ring, increased edge deposition and bevel coverage can be realized. In one embodiment, the material on the bottom surface is reduced by providing a recessed slot on the bottom surface. By increasing the amount of material of the shadow ring, the edge deposition and bevel coverage is reduced. Another approach to adjusting the deposition at the edge of the wafer includes increasing or decreasing the inner diameter of the shadow ring. The material forming the shadow ring may also be varied to change the amount of deposition at the edge of the wafer.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: March 12, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Dale R. Du Bois, Mohamad A. Ayoub, Robert Kim, Amit Bansal, Mark Fodor, Binh Nguyen, Siu F. Cheng, Hang Yu, Chiu Chan, Ganesh Balasubramanian, Deenesh Padhi, Juan Carlos Rocha
  • Publication number: 20190074163
    Abstract: Embodiments of the present disclosure generally relate to methods for conditioning an interior wall surface of a remote plasma generator. In one embodiment, a method for processing a substrate is provided. The method includes exposing an interior wall surface of a remote plasma source to a conditioning gas that is in excited state to passivate the interior wall surface of the remote plasma source, wherein the remote plasma source is coupled through a conduit to a processing chamber in which a substrate is disposed, and the conditioning gas comprises an oxygen-containing gas, a nitrogen-containing gas, or a combination thereof. The method has been observed to be able to improve dissociation/recombination rate and plasma coupling efficiency in the processing chamber, and therefore provides repeatable and stable plasma source performance from wafer to wafer.
    Type: Application
    Filed: November 5, 2018
    Publication date: March 7, 2019
    Inventors: Abdul Aziz KHAJA, Mohamad AYOUB, Jay D. PINSON, II, Juan Carlos ROCHA-ALVAREZ
  • Publication number: 20190035665
    Abstract: A method and apparatus for a heated pedestal is provided. In one embodiment, the heated pedestal includes a body comprising a ceramic material, a plurality of heating elements encapsulated within the body, and one or more grooves formed in a surface of the body adjacent each of the plurality of heating elements, at least one side of the grooves being bounded by a ceramic plate.
    Type: Application
    Filed: October 1, 2018
    Publication date: January 31, 2019
    Inventors: Xing LIN, Bozhi YANG, Jianhua ZHOU, Dale R. DUBOIS, Juan Carlos ROCHA-ALVAREZ, Ramprakash SANKARAKRISHNAN
  • Patent number: 10192717
    Abstract: Embodiments of the present disclosure generally relate to methods for conditioning an interior wall surface of a remote plasma generator. In one embodiment, a method for processing a substrate is provided. The method includes exposing an interior wall surface of a remote plasma source to a conditioning gas that is in excited state to passivate the interior wall surface of the remote plasma source, wherein the remote plasma source is coupled through a conduit to a processing chamber in which a substrate is disposed, and the conditioning gas comprises an oxygen-containing gas, a nitrogen-containing gas, or a combination thereof. The method has been observed to be able to improve dissociation/recombination rate and plasma coupling efficiency in the processing chamber, and therefore provides repeatable and stable plasma source performance from wafer to wafer.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: January 29, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Abdul Aziz Khaja, Mohamad Ayoub, Jay D. Pinson, II, Juan Carlos Rocha-Alvarez
  • Patent number: 10161035
    Abstract: A processing chamber is described having a gas evacuation flow path from the center to the edge of the chamber. Purge gas is introduced at an opening around a support shaft that supports a heater plate. A shaft wall around the opening directs the purge gas along the support shaft to an evacuation plenum. Gas flows from the evacuation plenum through an opening in a second plate near the shaft wall and along the chamber bottom to an opening coupled to a vacuum source. Purge gas is also directed to the slit valve.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: December 25, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Juan Carlos Rocha-Alvarez, Amit Kumar Bansal, Ganesh Balasubramanian, Jianhua Zhou, Ramprakash Sankarakrishnan
  • Patent number: 10153185
    Abstract: Embodiments of the present disclosure generally provide apparatus and methods for monitoring one or more process parameters, such as temperature of substrate support, at various locations. One embodiment of the present disclosure provides a sensor column for measuring one or more parameters in a processing chamber. The sensor column includes a tip for contacting a chamber component being measured, a protective tube having an inner volume extending from a first end and second end, wherein the tip is attached to the first end of the protective tube and seals the protective tube at the first end, and a sensor disposed near the tip. The inner volume of the protective tube houses connectors of the sensor, and the tip is positioned in the processing chamber through an opening of the processing chamber during operation.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: December 11, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Dale R. Du Bois, Bozhi Yang, Jianhua Zhou, Sanjeev Baluja, Amit Kumar Bansal, Juan Carlos Rocha-Alvarez
  • Patent number: 10125422
    Abstract: Embodiments provide a plasma processing apparatus, substrate support assembly, and method of controlling a plasma process. The apparatus and substrate support assembly include a substrate support pedestal, a tuning assembly that includes a tuning electrode that is disposed in the pedestal and electrically coupled to a radio frequency (RF) tuner, and a heating assembly that includes one or more heating elements disposed within the pedestal for controlling a temperature profile of the substrate, where at least one of the heating elements is electrically coupled to an RF filter circuit that includes a first inductor configured in parallel with a formed capacitance of the first inductor to ground. The high impedance of the RF filters can be achieved by tuning the resonance of the RF filter circuit, which results in less RF leakage and better substrate processing results.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: November 13, 2018
    Assignee: Applied Materials, Inc.
    Inventors: Jian J. Chen, Mohamad A. Ayoub, Juan Carlos Rocha-Alvarez, Zheng John Ye, Ramprakash Sankarakrishnan, Jianhua Zhou
  • Patent number: 10128118
    Abstract: An apparatus for plasma processing a substrate is provided. The apparatus comprises a processing chamber, a substrate support disposed in the processing chamber, and a lid assembly coupled to the processing chamber. The lid assembly comprises a conductive gas distributor coupled to a power source. A tuning electrode may be disposed between the conductive gas distributor and the chamber body for adjusting a ground pathway of the plasma. A second tuning electrode may be coupled to the substrate support, and a bias electrode may also be coupled to the substrate support.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: November 13, 2018
    Assignee: Applied Materials, Inc.
    Inventors: Juan Carlos Rocha-Alvarez, Amit Kumar Bansal, Ganesh Balasubramanian, Jianhua Zhou, Ramprakash Sankarakrishnan, Mohamad A. Ayoub, Jian J. Chen
  • Publication number: 20180323039
    Abstract: The present disclosure relates to methods and apparatuses for controlling a plasma sheath near a substrate edge. The method includes changing the voltage/current distribution across a central electrode and an annular electrode within the substrate assembly to facilitate the spatial distribution of the plasma across the substrate. The method also includes applying a first radio frequency power to a central electrode embedded in a substrate support and applying a second radio frequency power to an annular electrode embedded in the substrate support at a location different than the central electrode. The annular electrode is spaced from the central electrode and circumferentially surrounds the central electrode. The method also includes monitoring parameters of the first and second radio frequency powers and adjusting one of the first and second radio frequency powers based on the monitored parameters.
    Type: Application
    Filed: April 24, 2018
    Publication date: November 8, 2018
    Inventors: Hyungje WOO, Juan Carlos ROCHA-ALVAREZ, Chen-An CHEN, Ajit BALAKRISHNA
  • Publication number: 20180308735
    Abstract: A system for processing a substrate is provided including a first planar motor, a substrate carrier, a first processing chamber, and a first lift. The first planar motor includes a first arrangement of coils disposed along a first horizontal direction, a top surface parallel to the first horizontal direction, a first side, a second side. The substrate carrier has a substrate supporting surface parallel to the first horizontal direction. The first processing chamber has an opening to receive a substrate disposed on the substrate carrier. The first lift includes a second planar motor having a second arrangement of coils disposed along the first horizontal direction. A top surface top surface of the second planar motor is parallel to the first horizontal direction. The first lift is configured to move the top surface of the second planar motor between a first vertical location and a second vertical location.
    Type: Application
    Filed: June 25, 2018
    Publication date: October 25, 2018
    Inventors: Karthik JANAKIRAMAN, Hari K. PONNEKANTI, Juan Carlos ROCHA, Mukund SRINIVASAN