Patents by Inventor Abdul Aziz KHAJA

Abdul Aziz KHAJA 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).

  • Publication number: 20230120710
    Abstract: Exemplary processing chambers may include a body having sidewalls and a bottom plate. The bottom plate may define an exhaust opening and a gas inlet. The chambers may include a faceplate seated atop the body. The chambers may include a purge ring seated atop the bottom plate. The purge ring may include a ring body having an outer edge and an inner edge defining an open interior. The ring body may have a surface disposed against the bottom plate. The ring body may define an opening aligned with the exhaust opening. The surface may define a fluid port aligned and coupled with the gas inlet. The surface may define arcuate grooves extending into the fluid port. The arcuate grooves may be parallel with the inner and outer edges. The surface may define radial grooves extending from the open interior to an arcuate groove.
    Type: Application
    Filed: October 15, 2021
    Publication date: April 20, 2023
    Applicant: Applied Materials, Inc.
    Inventors: Zaoyuan Ge, Yin Xiong, Sungwon Ha, Abdul Aziz Khaja, Amit Bansal, Prasath Poomani, Ajit Laxman Kulkarni, Sarah Michelle Bobek, Badri N. Ramamurthi
  • Patent number: 11613808
    Abstract: Exemplary semiconductor processing methods may include forming a seasoning film on a heater of a processing chamber by a first deposition process. The method may include performing a hardmask deposition process in the processing chamber. The method may include cleaning the processing chamber by a first cleaning process. The method may include monitoring a gas produced during the first cleaning process. The method may include cleaning the processing chamber using a second cleaning process different from the first cleaning process. The method may also include monitoring the gas produced during the second cleaning process.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: March 28, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Jiheng Zhao, Abdul Aziz Khaja, Prashant Kumar Kulshreshtha, Fang Ruan
  • Publication number: 20230061249
    Abstract: Exemplary methods of semiconductor processing may include forming a plasma of a carbon-containing precursor in a processing region of a semiconductor processing chamber. The methods may include depositing a carbon-containing material on a substrate housed in the processing region of the semiconductor processing chamber. The methods may include halting a flow of the carbon-containing precursor into the processing region of the semiconductor processing chamber. The methods may include contacting the carbon-containing material with plasma effluents of an oxidizing material. The methods may include forming volatile materials from a surface of the carbon-containing material.
    Type: Application
    Filed: August 26, 2021
    Publication date: March 2, 2023
    Applicant: Applied Materials, Inc.
    Inventors: Sudha S. Rathi, Ganesh Balasubramanian, Nagarajan Rajagopalan, Abdul Aziz Khaja, Prashanthi Para, Hiral D. Tailor
  • Patent number: 11569072
    Abstract: Embodiments of the present disclosure generally relate to substrate supports for process chambers and RF grounding configurations for use therewith. Methods of grounding RF current are also described. A chamber body at least partially defines a process volume therein. A first electrode is disposed in the process volume. A pedestal is disposed opposite the first electrode. A second electrode is disposed in the pedestal. An RF filter is coupled to the second electrode through a conductive rod. The RF filter includes a first capacitor coupled to the conductive rod and to ground. The RF filter also includes a first inductor coupled to a feedthrough box. The feedthrough box includes a second capacitor and a second inductor coupled in series. A direct current (DC) power supply for the second electrode is coupled between the second capacitor and the second inductor.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: January 31, 2023
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Satya Thokachichu, Edward P. Hammond, IV, Viren Kalsekar, Zheng John Ye, Abdul Aziz Khaja, Vinay K. Prabhakar
  • Publication number: 20230023764
    Abstract: Methods and apparatus for surface profiling and texturing of chamber components for use in a process chamber, such surface-profiled or textured chamber components, and method of use of same are provided herein. In some embodiments, a method includes measuring a parameter of a reference substrate or a heated pedestal using one or more sensors and modifying a surface of a chamber component physically based on the measured parameter.
    Type: Application
    Filed: December 15, 2020
    Publication date: January 26, 2023
    Inventors: David W. GROECHEL, Michael R. RICE, Gang Grant PENG, Rui CHENG, Zubin HUANG, Han WANG, Karthik JANAKIRAMAN, Diwakar KEDLAYA, Paul L. BRILLHART, Abdul Aziz KHAJA
  • Patent number: 11560623
    Abstract: The present disclosure relates to systems and methods for reducing the formation of hardware residue and minimizing secondary plasma formation during substrate processing in a process chamber. The process chamber may include a gas distribution member configured to flow a first gas into a process volume and generate a plasma therefrom. A second gas is supplied into a lower region of the process volume. Further, an exhaust port is disposed in the lower region to remove excess gases or by-products from the process volume during or after processing.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: January 24, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Liangfa Hu, Prashant Kumar Kulshreshtha, Anjana M. Patel, Abdul Aziz Khaja, Viren Kalsekar, Vinay K. Prabhakar, Satya Teja Babu Thokachichu, Byung Seok Kwon, Ratsamee Limdulpaiboon, Kwangduk Douglas Lee, Ganesh Balasubramanian
  • Publication number: 20220384161
    Abstract: Exemplary methods of treating a chamber may include delivering a cleaning precursor to a remote plasma unit. The methods may include forming a plasma of the cleaning precursor. The methods may include delivering plasma effluents of the cleaning precursor to a processing region of a semiconductor processing chamber. The processing region may be defined by one or more chamber components. The one or more chamber components may include an oxide coating. The methods may include halting delivery of the plasma effluents. The methods may include treating the oxide coating with a hydrogen-containing material delivered to the processing region subsequent halting delivery of the plasma effluents.
    Type: Application
    Filed: May 25, 2021
    Publication date: December 1, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Sarah Michelle Bobek, Ruiyun Huang, Abdul Aziz Khaja, Amit Bansal, Dong Hyung Lee, Ganesh Balasubramanian, Tuan Anh Nguyen, Sungwon Ha, Anjana M. Patel, Ratsamee Limdulpaiboon, Karthik Janakiraman, Kwangduk Douglas Lee
  • Patent number: 11515150
    Abstract: Exemplary processing methods may include forming a plasma of a deposition precursor in a processing region of a semiconductor processing chamber. The methods may include adjusting a variable capacitor within 20% of a resonance peak. The variable capacitor may be coupled with an electrode incorporated within a substrate support on which a substrate is seated. The methods may include depositing a material on the substrate.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: November 29, 2022
    Assignee: Applied Materials, Inc.
    Inventors: Michael Wenyoung Tsiang, Abdul Aziz Khaja, Li-Qun Xia, Kevin Hsiao, Liangfa Hu, Yayun Cheng
  • Publication number: 20220310360
    Abstract: Exemplary semiconductor processing systems may include an output manifold that defines at least one plasma outlet. The systems may include a gasbox disposed beneath the output manifold. The gasbox may include an inlet side facing the output manifold and an outlet side opposite the inlet side. The gasbox may include an inner wall that defines a central fluid lumen. The inner wall may taper outward from the inlet side to the outlet side. The systems may include an annular spacer disposed below the gasbox. An inner diameter of the annular spacer may be greater than a largest inner diameter of the central fluid lumen. The systems may include a faceplate disposed beneath the annular spacer. The faceplate may define a plurality of apertures extending through a thickness of the faceplate.
    Type: Application
    Filed: March 26, 2021
    Publication date: September 29, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Saket Rathi, Tuan A. Nguyen, Amit Bansal, Yuxing Zhang, Badri N. Ramamurthi, Nitin Pathak, Abdul Aziz Khaja, Sarah Michelle Bobek
  • Publication number: 20220165567
    Abstract: Exemplary semiconductor processing systems may include a chamber body comprising sidewalls and a base. The systems may include a substrate support extending through the base of the chamber body. The substrate support may include a support platen and a stem. The systems may include a baffle extending about a stem of the substrate support. The baffle may define one or more apertures through the baffle. The systems may include a fluid source fluidly coupled with the chamber body at an access between the stem of the substrate support and the baffle.
    Type: Application
    Filed: November 25, 2020
    Publication date: May 26, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Abdul Aziz Khaja, Anjana M. Patel
  • Publication number: 20220127722
    Abstract: Exemplary semiconductor processing methods may include forming a seasoning film on a heater of a processing chamber by a first deposition process. The method may include performing a hardmask deposition process in the processing chamber. The method may include cleaning the processing chamber by a first cleaning process. The method may include monitoring a gas produced during the first cleaning process. The method may include cleaning the processing chamber using a second cleaning process different from the first cleaning process. The method may also include monitoring the gas produced during the second cleaning process.
    Type: Application
    Filed: October 22, 2020
    Publication date: April 28, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Jiheng Zhao, Abdul Aziz Khaja, Prashant Kumar Kulshreshtha, Fang Ruan
  • Publication number: 20220130665
    Abstract: Exemplary processing methods may include forming a plasma of a deposition precursor in a processing region of a semiconductor processing chamber. The methods may include adjusting a variable capacitor within 20% of a resonance peak. The variable capacitor may be coupled with an electrode incorporated within a substrate support on which a substrate is seated. The methods may include depositing a material on the substrate.
    Type: Application
    Filed: October 22, 2020
    Publication date: April 28, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Michael Wenyoung Tsiang, Abdul Aziz Khaja, Li-Qun Xia, Kevin Hsiao, Liangfa Hu, Yayun Cheng
  • Publication number: 20220122823
    Abstract: Exemplary processing methods may include forming a plasma of a cleaning precursor in a remote region of a semiconductor processing chamber. The methods may include flowing plasma effluents of the cleaning precursor into a processing region of the semiconductor processing chamber. The methods may include contacting a substrate support with the plasma effluents for a first period of time. The methods may include lowering the substrate support from a first position to a second position while continuing to flow plasma effluents of the cleaning precursor. The methods may include cleaning the processing region of the semiconductor processing chamber for a second period of time.
    Type: Application
    Filed: October 15, 2020
    Publication date: April 21, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Fei Wu, Abdul Aziz Khaja, Sungwon Ha, Ganesh Balasubramanian, Vinay Prabhakar
  • Patent number: 11299805
    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 having an outer wall. The substrate support has a heater. The heater has a body having a top surface, a side surface and a bottom surface extending from the outer wall of the shaft. 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. A sleeve circumscribing the shaft, the sleeve and the outer wall of the shaft forming a space therebetween, the space adapted to flow a purge gas therethrough in a direction toward the body.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: April 12, 2022
    Assignee: Applied Materials, Inc.
    Inventors: Abdul Aziz Khaja, Ren-Guan Duan, Amit Kumar Bansal, Jianhua Zhou, Juan Carlos Rocha-Alvarez
  • Publication number: 20220098728
    Abstract: The present disclosure relates to a method for in situ seasoning of process chamber components, such as electrodes. The method includes depositing a silicon oxide film over the process chamber component and converting the silicon oxide film to a silicon-carbon-containing film. The silicon-carbon-containing film forms a protective film over the process chamber components and is resistant to plasma processing and/or dry etch cleaning. The coatings has high density, good emissivity control, and reduces risk of device property drift.
    Type: Application
    Filed: September 29, 2020
    Publication date: March 31, 2022
    Inventors: Sarah Michelle BOBEK, Abdul Aziz Khaja, Ratsamee Limdulpaiboon, Kwangduk Douglas Lee
  • Publication number: 20220098729
    Abstract: The present disclosure relates to a method for cleaning one or more chamber components having contaminants. The method includes introducing a gas mixture to a remote plasma source, the gas mixture includes argon, an oxygen-containing gas and a nitrogen-containing gas. The argon to oxygen gas ratio in the gas mixture is about 0.2:1 to about 1:1 by volume. A plasma is formed from the gas mixture in the remote plasma source. The plasma includes oxygen radicals, argon radicals, and nitrogen radicals. The plasma is introduced to a process volume of the process chamber and exposes surfaces of one or more chamber components. The process volume of the process chamber has a pressure of about 10 mTorr to about 6 Torr and a temperature above 300° C.
    Type: Application
    Filed: September 28, 2020
    Publication date: March 31, 2022
    Inventors: Fei WU, Abdul Aziz KHAJA, Amit Kumar BANSAL, Tuan Anh (Mike) NGUYEN, Qian SUI
  • Patent number: 11133212
    Abstract: A substrate support is disclosed. The substrate support has a dielectric body with a plurality of features formed thereon. A ledge surrounds the plurality of features about a periphery thereof. The features increase in number from a central region of the substrate support towards the ledge. A seasoning layer is optionally disposed on the dielectric body.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: September 28, 2021
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Abdul Aziz Khaja, Jun Ma, Hyung Je Woo, Fei Wu, Jian Li
  • Publication number: 20210287924
    Abstract: Exemplary support assemblies may include an electrostatic chuck body defining a substrate support surface. The substrate support assemblies may include a support stem coupled with the electrostatic chuck body. The substrate support assemblies may include a heater embedded within the electrostatic chuck body. The substrate support assemblies may include an electrode embedded within the electrostatic chuck body between the heater and the substrate support surface. The substrate support assembly may include a ceramic material characterized by a grain size of less than or about 5 ?m.
    Type: Application
    Filed: March 16, 2020
    Publication date: September 16, 2021
    Applicant: Applied Materials, Inc.
    Inventors: Jian Li, Paul L. Brillhart, Juan Carlos Rocha-Alvarez, Abdul Aziz Khaja, Vinay K. Prabhakar, Kwangduk Douglas Lee, Chidambara A. Ramalingam, Venkata Sharat Chandra Parimi
  • Publication number: 20210143005
    Abstract: Embodiments described herein generally relate to apparatuses for processing a substrate. In one or more embodiments, a heater support kit includes a heater assembly contains a heater plate having an upper surface and a lower surface, a chuck ring disposed on at least a portion of the upper surface of the heater plate, a heater arm assembly contains a heater arm and supporting the heater assembly, and a heater support plate disposed between the heater plate and the heater arm and in contact with at least a portion of the lower surface of the heater plate.
    Type: Application
    Filed: December 17, 2020
    Publication date: May 13, 2021
    Inventors: Tuan Anh NGUYEN, Jeongmin LEE, Anjana M. PATEL, Abdul Aziz KHAJA
  • Publication number: 20210111000
    Abstract: Implementations of the present disclosure generally relate to methods and apparatus for generating and controlling plasma, for example RF filters, used with plasma chambers. In one implementation, a plasma processing apparatus is provided. The plasma processing apparatus comprises a chamber body, a powered gas distribution manifold enclosing a processing volume and a radio frequency (RF) filter. A pedestal having a substrate-supporting surface is disposed in the processing volume. A heating assembly comprising one or more heating elements is disposed within the pedestal for controlling a temperature profile of the substrate-supporting surface. A tuning assembly comprising a tuning electrode is disposed within the pedestal between the one or more heating elements and the substrate-supporting surface. The RF filter comprises an air core inductor, wherein at least one of the heating elements, the tuning electrode, and the gas distribution manifold is electrically coupled to the RF filter.
    Type: Application
    Filed: November 30, 2020
    Publication date: April 15, 2021
    Inventors: Zheng John Ye, Abdul Aziz Khaja, Amit Kumar Bansal, Kwangduk Douglas Lee, Xing Lin, Jianhua Zhou, Addepalli Sai Susmita, Juan Carlos Rocha-Alvarez