Patents by Inventor Deenesh Padhi
Deenesh Padhi 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).
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Patent number: 11817313Abstract: Exemplary deposition methods may include forming a plasma of a silicon-containing precursor and at least one additional precursor within a processing region of a semiconductor processing chamber. The processing region may house a semiconductor substrate on a substrate support. The methods may include depositing material on the semiconductor substrate to a target thickness. The methods may include halting delivery of the silicon-containing precursor while maintaining the plasma with the one or more precursors. The methods may include purging the processing region of the semiconductor processing chamber.Type: GrantFiled: February 5, 2020Date of Patent: November 14, 2023Assignee: Applied Materials, Inc.Inventors: Madhu Santosh Kumar Mutyala, Sanjay Kamath, Deenesh Padhi
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Patent number: 11784229Abstract: Exemplary semiconductor structures and processing methods may include forming a first portion of a first semiconductor layer characterized by a first etch rate for an etch treatment, forming a second portion of the first semiconductor layer characterized by a second etch rate that is less than the first etch rate for the etch treatment, and forming a third portion of the first semiconductor layer characterized by a third etch rate that is greater than the second etch rate. The processing methods may further include etching an opening through the first semiconductor layer, where the opening has a height and a width, and where the opening is characterized by a variation in the width between a midpoint of the height of the opening and an endpoint of the opening that is less than or about 5 ?.Type: GrantFiled: October 16, 2020Date of Patent: October 10, 2023Assignee: Applied Materials, Inc.Inventors: Akhil Singhal, Allison Yau, Sang-Jin Kim, Zeqiong Zhao, Zhijun Jiang, Deenesh Padhi, Ganesh Balasubramanian
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Patent number: 11776835Abstract: Exemplary semiconductor processing systems may include a processing chamber and an electrostatic chuck disposed at least partially within the processing chamber. The electrostatic chuck may include at least one electrode and a heater. A semiconductor processing system may include a power supply to provide a signal to the electrode to provide electrostatic force to secure a substrate to the electrostatic chuck. The system may also include a filter communicatively coupled between the power supply and the electrode. The filter is configured to remove or reduce noise introduced into the chucking signal by operating the heater while the electrostatic force on the substrate is maintained. The filter may include active circuitry, passive circuitry, or both, and may include an adjustment circuit to set the gain of the filter so that an output signal level from the filter corresponds to an input signal level for the filter.Type: GrantFiled: September 29, 2020Date of Patent: October 3, 2023Assignee: Applied Materials, Inc.Inventors: Zheng John Ye, Daemian Raj Benjamin Raj, Rana Howlader, Abhigyan Keshri, Sanjay G. Kamath, Dmitry A. Dzilno, Juan Carlos Rocha-Alvarez, Shailendra Srivastava, Kristopher R. Enslow, Xinhai Han, Deenesh Padhi, Edward P. Hammond
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Publication number: 20230274968Abstract: Semiconductor processing systems and method are described that may include flowing deposition precursors into a substrate processing region of a semiconductor processing chamber, where the substrate processing region includes an electrostatic chuck. The methods may further include depositing a seasoning layer on the electrostatic chuck from the deposition precursors to form a seasoned electrostatic chuck. The seasoning layer may be characterized by a dielectric constant greater than or about 3.5. The methods may still further include applying a voltage to the seasoned electrostatic chuck of greater than or about 500 V. The seasoned electrostatic chuck may be characterized by a leakage current of less than or about 25 mA when the voltage is applied.Type: ApplicationFiled: May 5, 2023Publication date: August 31, 2023Applicant: Applied Materials, Inc.Inventors: Akhil Singhal, Allison Yau, Zeqiong Zhao, Sang-Jin Kim, Zhijun Jiang, Deenesh Padhi, Ganesh Balasubramanian
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Publication number: 20230238289Abstract: Methods and systems are described for generating assessment maps. A method includes receiving a first vector map comprising a first set of vectors each indicating a distortion of a particular location on a substrate and generating a second vector map indicating a change in direction of a magnitude of the distortion of the particular location on the substrate. The method further includes generating a third vector map comprising vectors reflecting reduced noise in distortions across the plurality of locations on the substrate and generating a fourth vector map projecting a direction component of each vector component in the third set of vectors to a radial direction. The method further includes generating a fifth vector map by grouping the vectors of the fourth set of vectors and determining a magnitude associated with each group of vectors.Type: ApplicationFiled: April 4, 2023Publication date: July 27, 2023Inventors: Wenjiao Wang, Joshua Maher, Xinhai Han, Deenesh Padhi, Tza-Jing Gung
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Patent number: 11710631Abstract: Exemplary semiconductor processing methods may include flowing deposition gases that may include a nitrogen-containing precursor, a silicon-containing precursor, and a carrier gas, into a substrate processing region of a substrate processing chamber. The flow rate ratio of the nitrogen-containing precursor to the silicon-containing precursor may be greater than or about 1:1. The methods may further include generating a deposition plasma from the deposition gases to form a silicon-and-nitrogen containing layer on a substrate in the substrate processing chamber. The silicon-and-nitrogen-containing layer may be treated with a treatment plasma, where the treatment plasma is formed from the carrier gas without the silicon-containing precursor. The flow rate of the carrier gas in the treatment plasma may be greater than a flow rate of the carrier gas in the deposition plasma.Type: GrantFiled: October 23, 2020Date of Patent: July 25, 2023Assignee: Applied Materials, Inc.Inventors: Michael Wenyoung Tsiang, Yichuen Lin, Kevin Hsiao, Hang Yu, Deenesh Padhi, Yijun Liu, Li-Qun Xia
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Patent number: 11646216Abstract: Semiconductor processing systems and method are described that may include flowing deposition precursors into a substrate processing region of a semiconductor processing chamber, where the substrate processing region includes an electrostatic chuck. The methods may further include depositing a seasoning layer on the electrostatic chuck from the deposition precursors to form a seasoned electrostatic chuck. The seasoning layer may be characterized by a dielectric constant greater than or about 3.5. The methods may still further include applying a voltage to the seasoned electrostatic chuck of greater than or about 500 V. The seasoned electrostatic chuck may be characterized by a leakage current of less than or about 25 mA when the voltage is applied.Type: GrantFiled: October 16, 2020Date of Patent: May 9, 2023Assignee: Applied Materials, Inc.Inventors: Akhil Singhal, Allison Yau, Zeqiong Zhao, Sang-Jin Kim, Zhijun Jiang, Deenesh Padhi, Ganesh Balasubramanian
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Patent number: 11637043Abstract: Methods, systems, and non-transitory computer readable medium are described for generating assessment maps for corrective action. A method includes receiving a first vector map including a first set of vectors each indicating a distortion of a particular location of a plurality of locations on a substrate. The method further includes generating a second vector map including a second set of vectors by rotating a position of each vector in the first set of vectors. The method further includes generating a third vector map including a third set of vectors based on vectors in the second set of vectors and corresponding vectors in the first set of vectors. The method further includes generating a fourth vector map by subtracting each vector of the third set of vectors from a corresponding vector in the first set of vectors. The fourth vector map indicates a planar component of the first vector map.Type: GrantFiled: November 3, 2020Date of Patent: April 25, 2023Assignee: Applied Materials, Inc.Inventors: Wenjiao Wang, Joshua Maher, Xinhai Han, Deenesh Padhi, Tza-Jing Gung
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Publication number: 20230094180Abstract: Exemplary methods of forming a silicon-and-carbon-containing material may include flowing a silicon-and-carbon-containing precursor into a processing region of a semiconductor processing chamber. A substrate may be housed within the processing region of the semiconductor processing chamber. The methods may include forming a plasma within the processing region of the silicon-and-carbon-containing precursor. The plasma may be formed at a frequency above 15 MHz. The methods may include depositing a silicon-and-carbon-containing material on the substrate. The silicon-and-carbon-containing material as-deposited may be characterized by a dielectric constant below or about 3.0.Type: ApplicationFiled: December 5, 2022Publication date: March 30, 2023Applicant: Applied Materials, Inc.Inventors: Shaunak Mukherjee, Kang Sub Yim, Deenesh Padhi, Abhijit A. Kangude, Rahul Rajeev, Shubham Chowdhuri
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Patent number: 11600468Abstract: Embodiments described herein relate to gas line systems with a multichannel splitter spool. In these embodiments, the gas line systems will include a first gas line that is configured to supply a first gas. The first gas line is coupled to a multichannel splitter spool with a plurality of second gas lines into which the first gas flows. Each gas line of the plurality of second gas lines will have a smaller volume than the volume of the first gas line. The smaller second gas lines will be wrapped by a heater jacket. Due to the smaller volume of the second gas lines, when the first gas is flowed through the second gas lines, the heater jacket will sufficiently heat the first gas, eliminating the condensation induced particle defects that occur in conventional gas line systems when the first gas meets with a second gas in the gas line system.Type: GrantFiled: January 21, 2020Date of Patent: March 7, 2023Assignee: Applied Materials, Inc.Inventors: Madhu Santosh Kumar Mutyala, Sanjay G. Kamath, Deenesh Padhi, Arkajit Roy Barman
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Publication number: 20230063929Abstract: Embodiments described herein relate to layered structures having a top surface which is hydrophobic for reducing the wetting of water or ice on the layered structure without requiring reapplication. In one or more embodiments, a layered structure is provided and includes a coating containing silicon, oxygen, and carbon disposed over a substrate and an interface disposed between the substrate and the coating. The substrate is at least partially transparent to visible light, a concentration of carbon in the coating is greater at a top surface of the coating than the interface, and the top surface of the coating is disposed on the opposite side of the coating than the interface.Type: ApplicationFiled: November 7, 2022Publication date: March 2, 2023Inventors: Rajeev BAJAJ, Mei CHANG, Deenesh PADHI
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Patent number: 11594409Abstract: Exemplary methods of forming a silicon-and-carbon-containing material may include flowing a silicon-and-carbon-containing precursor into a processing region of a semiconductor processing chamber. A substrate may be housed within the processing region of the semiconductor processing chamber. The methods may include forming a plasma within the processing region of the silicon-and-carbon-containing precursor. The plasma may be formed at a frequency above 15 MHz. The methods may include depositing a silicon-and-carbon-containing material on the substrate. The silicon-and-carbon-containing material as-deposited may be characterized by a dielectric constant below or about 3.0.Type: GrantFiled: June 16, 2020Date of Patent: February 28, 2023Assignee: Applied Materials, Inc.Inventors: Shaunak Mukherjee, Kang Sub Yim, Deenesh Padhi, Abhijit A. Kangude, Rahul Rajeev, Shubham Chowdhuri
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Patent number: 11569257Abstract: Embodiments described herein relate to methods and materials for fabricating semiconductor devices, such as memory devices and the like. In one embodiment, a memory layer stack includes materials having differing etch rates in which one material is selectively removed to form an airgap in the device structure. In another embodiment, silicon containing materials of a memory layer stack are doped or fabricated as a silicide material. In another embodiment, a silicon nitride material is utilized as an interfacial layer between oxide containing and silicon containing layers of a memory layer stack.Type: GrantFiled: May 29, 2020Date of Patent: January 31, 2023Assignee: Applied Materials, Inc.Inventors: Xinhai Han, Deenesh Padhi, Er-Xuan Ping, Srinivas Guggilla
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Publication number: 20230008922Abstract: Exemplary substrate support assemblies may include a chuck body defining a substrate support surface. The substrate support surface may define a plurality of protrusions that extend upward from the substrate support surface. The substrate support surface may define an annular groove and/or ridge. A subset of the plurality of protrusions may be disposed within the annular groove and/or ridge. The substrate support assemblies may include a support stem coupled with the chuck body.Type: ApplicationFiled: July 9, 2021Publication date: January 12, 2023Applicant: Applied Materials, Inc.Inventors: Saketh Pemmasani, Akshay Dhanakshirur, Mayur Govind Kulkarni, Madhu Santosh Kumar Mutyala, Hang Yu, Deenesh Padhi
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Publication number: 20230011938Abstract: Exemplary semiconductor processing chambers may include a chamber body. The chambers may include a substrate support disposed within the chamber body. The substrate support may define a substrate support surface. The chambers may include a showerhead positioned supported atop the chamber body. The substrate support and a bottom surface of the showerhead may at least partially define a processing region within the semiconductor processing chamber. The showerhead may define a plurality of apertures through the showerhead. The bottom surface of the showerhead may define an annular groove or ridge that is positioned directly above at least a portion of the substrate support.Type: ApplicationFiled: July 9, 2021Publication date: January 12, 2023Applicant: Applied Materials, Inc.Inventors: Saketh Pemmasani, Daemian Raj Benjamin Raj, Xiaopu Li, Akshay Dhanakshirur, Mayur Govind Kulkarni, Madhu Santosh Kumar Mutyala, Deenesh Padhi, Hang Yu
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Publication number: 20220415651Abstract: Memory devices and methods of forming memory devices are described. The memory devices comprise a silicon nitride hard mask layer on a ruthenium layer. Forming the silicon nitride hard mask layer on the ruthenium comprises pre-treating the ruthenium layer with a plasma to form an interface layer on the ruthenium layer; and forming a silicon nitride layer on the interface layer by plasma-enhanced chemical vapor deposition (PECVD). Pre-treating the ruthenium layer, in some embodiments, results in the interface layer having a reduced roughness and the memory device having a reduced resistivity compared to a memory device that does not include the interface layer.Type: ApplicationFiled: June 29, 2021Publication date: December 29, 2022Applicant: Applied Materials, Inc.Inventors: Qixin Shen, Chuanxi Yang, Hang Yu, Deenesh Padhi, Gill Yong Lee, Sung-Kwan Kang, Abdul Wahab Mohammed, Hailing Liu
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Patent number: 11538677Abstract: Exemplary methods of semiconductor processing may include flowing a silicon-containing precursor, a nitrogen-containing precursor, and diatomic hydrogen into a processing region of a semiconductor processing chamber. A substrate may be housed within the processing region of the semiconductor processing chamber. The methods may also include forming a plasma of the silicon-containing precursor, the nitrogen-containing precursor, and the diatomic hydrogen. The plasma may be formed at a frequency above 15 MHz. The methods may also include depositing a silicon nitride material on the substrate.Type: GrantFiled: September 1, 2020Date of Patent: December 27, 2022Assignee: Applied Materials, Inc.Inventors: Chuanxi Yang, Hang Yu, Yu Yang, Chuan Ying Wang, Allison Yau, Xinhai Han, Sanjay G. Kamath, Deenesh Padhi
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Patent number: 11530478Abstract: A method of depositing a coating and a layered structure is provided. A coating is deposited on a substrate to make a layered structure, such that an interface between the coating and the substrate is formed. The coating includes silicon, oxygen, and carbon, where the carbon doping in the coating increases between the interface and the top surface of the coating. The top surface of the coating is inherently hydrophobic and icephobic, and reduces the wetting of water or ice film on the layered structure, without requiring reapplication of the coating.Type: GrantFiled: February 19, 2020Date of Patent: December 20, 2022Assignee: APPLIED MATERIALS, INC.Inventors: Rajeev Bajaj, Mei Chang, Deenesh Padhi
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Publication number: 20220384189Abstract: Exemplary deposition methods may include delivering a boron-containing precursor and a nitrogen-containing precursor to a processing region of a semiconductor processing chamber. The methods may include providing a hydrogen-containing precursor with the boron-containing precursor and the nitrogen-containing precursor. A flow rate ratio of the hydrogen-containing precursor to either of the boron-containing precursor or the nitrogen-containing precursor may be greater than or about 2:1. The methods may include forming a plasma of all precursors within the processing region of the semiconductor processing chamber. The methods may include depositing a boron-and-nitrogen material on a substrate disposed within the processing region of the semiconductor processing chamber.Type: ApplicationFiled: May 25, 2021Publication date: December 1, 2022Applicant: Applied Materials, Inc.Inventors: Siyu Zhu, Chuanxi Yang, Hang Yu, Deenesh Padhi, Yeonju Kwak, Jeong Hwan Kim, Qian Fu, Xiawan Yang
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Patent number: 11515145Abstract: Methods for forming a SiBN film comprising depositing a film on a feature on a substrate. The method comprises in a first cycle, depositing a SiB layer on a substrate in a chamber using a chemical vapor deposition process, the substrate having at least one feature thereon, the at least one feature comprising an upper surface, a bottom surface and sidewalls, the SiB layer formed on the upper surface, the bottom surface and the sidewalls. In a second cycle, the SiB layer is treated with a plasma comprising a nitrogen-containing gas to form a conformal SiBN film.Type: GrantFiled: September 11, 2020Date of Patent: November 29, 2022Assignee: Applied Materials, Inc.Inventors: Chuanxi Yang, Hang Yu, Deenesh Padhi