Patents by Inventor Jallepally Ravi
Jallepally Ravi 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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Publication number: 20240266215Abstract: A method of forming a structure on a substrate, includes forming a nucleation layer within an opening of the substrate within a processing chamber. The method further includes forming a passivation layer on at least a portion of the nucleation layer by introducing radical treatment into the processing chamber. The method further includes forming a tungsten fill layer within the opening over the passivation layer and the nucleation layer, wherein the tungsten fill layer is formed by a plurality of treatment cycles. Each treatment cycle includes pulsing a first gas at the substrate for a pulse time duration while concurrently flowing a second gas over the substrate, and purging the first gas and the second gas by flowing a purge gas over the substrate for a purge time duration.Type: ApplicationFiled: February 8, 2023Publication date: August 8, 2024Inventors: Xi CEN, Yang LI, Kai WU, Mehran BEHDJAT, Jallepally RAVI
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Publication number: 20240247376Abstract: A component of an apparatus for processing a substrate having a coating comprising fluorinated aluminum disposed on at least a portion of a surface of the component. A method of coating the component, a method of repairing a coating on a component, and a method of processing a substrate are also disclosed.Type: ApplicationFiled: January 18, 2024Publication date: July 25, 2024Inventors: Douglas LONG, Jallepally RAVI, Dien-yeh WU
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Publication number: 20240249918Abstract: Provided is a processing chamber configured to contain a semiconductor substrate in a processing region of the chamber. The processing chamber includes a remote plasma unit and a direct plasma unit, wherein one of the remote plasma unit or the direct plasma unit generates a remote plasma and the other of the remote plasma unit or the direct plasma unit generates a direct plasma. The combination of a remote plasma unit and a direct plasma unit is used to remove, etch, clean, or treat residue on a substrate from previous processing and/or from native oxide formation. The combination of a remote plasma unit and direct plasma unit is used to deposit thin films on a substrate.Type: ApplicationFiled: March 8, 2024Publication date: July 25, 2024Applicant: Applied Materials, Inc.Inventors: Kazuya Daito, Yi Xu, Yu Lei, Takashi Kuratomi, Jallepally Ravi, Pingyan Lei, Dien-Yeh Wu
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Publication number: 20240229230Abstract: A method of forming a tungsten-containing layer over a substrate includes a) positioning a substrate on a substrate support in a process volume of a process chamber; b) providing a precursor gas to the process volume of the process chamber for a first duration; and c) providing a tungsten-containing gas to the process volume of the process chamber by opening a pulsing valve on a tungsten-containing gas delivery line for a second duration occurring after the first duration to form a tungsten-containing layer on the substrate. The tungsten-containing gas delivery line includes a first section connected to an inlet of the pulsing valve and a second section connected to an outlet of the pulsing valve, the first section connects the inlet of the pulsing valve to a reservoir of tungsten-containing gas, the second section connects the outlet of the pulsing valve to an inlet of the process chamber.Type: ApplicationFiled: March 25, 2024Publication date: July 11, 2024Inventors: Zubin HUANG, Mohammed Jaheer SHERFUDEEN, David Matthew SANTI, Jallepally RAVI, Peiqi WANG, Kai WU
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Patent number: 12016092Abstract: Embodiments of a lid heater for a deposition chamber are provided herein. In some embodiments, a lid heater for a deposition chamber includes a ceramic heater body having a first side opposite a second side, wherein the ceramic heater body includes a first plurality of gas channels extending from one or more first gas inlets on the first side, wherein each of the one or more first gas inlets extend to a plurality of first gas outlets on the second side; a heating element embedded in the ceramic heater body; and an RF electrode embedded in the ceramic heater body proximate the second side, wherein the first plurality of gas channels extend through the RF electrode.Type: GrantFiled: November 30, 2020Date of Patent: June 18, 2024Assignee: APPLIED MATERIALS, INC.Inventors: Pingyan Lei, Dien-Yeh Wu, Jallepally Ravi, Manjunatha Koppa, Ambarish Toorihal, Sandesh Yadamane, Vinod Konda Purathe, Xiaoxiong Yuan
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Patent number: 11955319Abstract: Provided is a processing chamber configured to contain a semiconductor substrate in a processing region of the chamber. The processing chamber includes a remote plasma unit and a direct plasma unit, wherein one of the remote plasma unit or the direct plasma unit generates a remote plasma and the other of the remote plasma unit or the direct plasma unit generates a direct plasma. The combination of a remote plasma unit and a direct plasma unit is used to remove, etch, clean, or treat residue on a substrate from previous processing and/or from native oxide formation. The combination of a remote plasma unit and direct plasma unit is used to deposit thin films on a substrate.Type: GrantFiled: June 20, 2022Date of Patent: April 9, 2024Assignee: Applied Materials, Inc.Inventors: Kazuya Daito, Yi Xu, Yu Lei, Takashi Kuratomi, Jallepally Ravi, Pingyan Lei, Dien-Yeh Wu
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Patent number: 11955381Abstract: Methods for pre-cleaning substrates having metal and dielectric surfaces are described. A temperature of a pedestal comprising a cooling feature on which a substrate is located is set to less than or equal to 100° C. The substrate is exposed to a plasma treatment to remove chemical residual and/or impurities from features of the substrate including a metal bottom, dielectric sidewalls, and/or a field of dielectric and/or repair surface defects in the dielectric sidewalls and/or the field of the dielectric. The plasma treatment may be an oxygen plasma, for example, a direct oxygen plasma. Processing tools and computer readable media for practicing the method are also described.Type: GrantFiled: June 22, 2020Date of Patent: April 9, 2024Assignee: Applied Materials, Inc.Inventors: Yi Xu, Yufei Hu, Kazuya Daito, Geraldine M. Vasquez, Da He, Jallepally Ravi, Yu Lei, Dien-Yeh Wu
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Patent number: 11939668Abstract: A method of forming a tungsten-containing layer over a substrate includes a) positioning a substrate on a substrate support in a process volume of a process chamber; b) providing a precursor gas to the process volume of the process chamber for a first duration; and c) providing a tungsten-containing gas to the process volume of the process chamber by opening a pulsing valve on a tungsten-containing gas delivery line for a second duration occurring after the first duration to form a tungsten-containing layer on the substrate. The tungsten-containing gas delivery line includes a first section connected to an inlet of the pulsing valve and a second section connected to an outlet of the pulsing valve, the first section connects the inlet of the pulsing valve to a reservoir of tungsten-containing gas, the second section connects the outlet of the pulsing valve to an inlet of the process chamber.Type: GrantFiled: April 26, 2022Date of Patent: March 26, 2024Assignee: Applied Materials, Inc.Inventors: Zubin Huang, Mohammed Jaheer Sherfudeen, David Matthew Santi, Jallepally Ravi, Peiqi Wang, Kai Wu
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Publication number: 20240087955Abstract: A method and apparatus for forming tungsten features in semiconductor devices is provided. The method includes exposing a top opening of a feature formed in a substrate to a physical vapor deposition (PVD) process to deposit a tungsten liner layer within the feature. The PVD process is performed in a first processing region of a first processing chamber and the tungsten liner layer forms an overhang portion, which partially obstructs the top opening of the feature. The substrate is transferred from the first processing region of the first processing chamber to a second processing region of a second processing chamber without breaking vacuum. The overhang portion is exposed to nitrogen-containing radicals in the second processing region to inhibit subsequent growth of tungsten along the overhang portion. The feature is exposed to a tungsten-containing precursor gas to form a tungsten fill layer over the tungsten liner layer within the feature.Type: ApplicationFiled: September 1, 2023Publication date: March 14, 2024Inventors: Yi XU, Xianyuan ZHAO, Zhimin QI, Aixi ZHANG, Geraldine VASQUEZ, Dien-Yeh WU, Wei LEI, Xingyao GAO, Shirish PETHE, Wenting HOU, Chao DU, Tsung-Han YANG, Kyoung-Ho BU, Chen-Han LIN, Jallepally RAVI, Yu LEI, Rongjun WANG, Xianmin TANG
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Publication number: 20240018648Abstract: Embodiments of a purge ring for use in a process chamber are provided herein. In some embodiments, a purge ring includes: an annular body having an inner portion and an outer portion, wherein the inner portion includes an inner surface of the annular body, the inner surface comprising a first inner sidewall, a second inner sidewall, and a third inner sidewall, wherein the inner portion has an upper inner notch that defines the first inner sidewall and a lower inner notch that defines the second inner sidewall, wherein a third inner sidewall is disposed between the first inner sidewall and the second inner sidewall, and wherein the first inner sidewall and the second inner sidewall are disposed radially outward of the third inner sidewall.Type: ApplicationFiled: July 11, 2023Publication date: January 18, 2024Inventors: Geraldine VASQUEZ, Yi XU, Dien-yeh WU, Aixi ZHANG, Jallepally RAVI, Yu LEI
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Publication number: 20230374660Abstract: A substrate processing system is provided having a processing chamber. The processing chamber includes a lid plate, one or more chamber sidewalls, and a chamber base that collectively define a processing volume. An annular plate is coupled to the lid plate, and an edge manifold is fluidly coupled to the processing chamber through the annular plate and the lid plate. The substrate processing system includes a center manifold that is coupled to the lid plate.Type: ApplicationFiled: May 17, 2022Publication date: November 23, 2023Inventors: Harpreet SINGH, Jallepally RAVI, Zubin HUANG, Manjunatha KOPPA, Sandesh YADAMANE, Srinivas TOKUR MOHANA, Shreyas PATIL SHANTHAVEERASWAMY, Kai WU, Peiqi WANG, Mingrui ZHAO
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Publication number: 20230357929Abstract: A shadow ring for a processing chamber, such as a semiconductor processing chamber, is an annular member including a body with a radially inwardly projecting lip. The shadow ring includes a feature that mitigates heat transfer between the lip and the rest of the body. In one example, the feature includes a plurality of apertures, each aperture extending from an upper opening at an upper surface of the shadow ring to a corresponding lower opening at a lower surface of the shadow ring. A neck between adjacent apertures creates a bottleneck that hinders conductive heat transfer.Type: ApplicationFiled: July 11, 2022Publication date: November 9, 2023Inventors: Zubin HUANG, Jallepally RAVI, Cheng CHENG, Peiqi WANG, Kai WU
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Publication number: 20230340662Abstract: A method of forming a tungsten-containing layer over a substrate includes a) positioning a substrate on a substrate support in a process volume of a process chamber; b) providing a precursor gas to the process volume of the process chamber for a first duration; and c) providing a tungsten-containing gas to the process volume of the process chamber by opening a pulsing valve on a tungsten-containing gas delivery line for a second duration occurring after the first duration to form a tungsten-containing layer on the substrate. The tungsten-containing gas delivery line includes a first section connected to an inlet of the pulsing valve and a second section connected to an outlet of the pulsing valve, the first section connects the inlet of the pulsing valve to a reservoir of tungsten-containing gas, the second section connects the outlet of the pulsing valve to an inlet of the process chamber.Type: ApplicationFiled: April 26, 2022Publication date: October 26, 2023Inventors: Zubin HUANG, Mohammed Jaheer SHERFUDEEN, David Matthew SANTI, Jallepally Ravi, Peiqi WANG, Kai WU
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Patent number: 11721542Abstract: Methods for pre-cleaning substrates having metal and dielectric surfaces are described. A substrate comprising a surface structure with a metal bottom, dielectric sidewalls, and a field of dielectric is exposed to a dual plasma treatment in a processing chamber to remove chemical residual and/or impurities from the metal bottom, the dielectric sidewalls, and/or the field of the dielectric and/or repair surface defects in the dielectric sidewalls and/or the field of the dielectric. The dual plasma treatment comprises a direct plasma and a remote plasma.Type: GrantFiled: November 23, 2020Date of Patent: August 8, 2023Assignee: Applied Materials, Inc.Inventors: Yi Xu, Yufei Hu, Kazuya Daito, Yu Lei, Dien-Yeh Wu, Jallepally Ravi
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Publication number: 20230130756Abstract: Embodiments of the disclosure provided herein generally relate to a bottom cover plate (BCP) that enables control of radiation loss from a heating element inside a chamber for processing a substrate. The heating element is used to heat the substrate before or during processing and may heat the substrate unevenly due to uneven heat losses within the chamber. For example, the uneven heating of the substrate may result in uneven deposition of a material on the substrate, which may result in excess processing to correct the deposition or wasted product from disposing of improperly processed substrates. The BCP may be used to correct the uneven heating of the substrate.Type: ApplicationFiled: October 22, 2021Publication date: April 27, 2023Inventors: Zubin HUANG, Srinivas Tokur MOHANA, Sandesh YADAMANE, Kai WU, Jallepally RAVI, Xiaozhou YU, Peiqi WANG
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Patent number: 11555244Abstract: Embodiments of showerheads are provided herein. In some embodiments, a showerhead for use in a process chamber includes a gas distribution plate having an upper surface and a lower surface; a plurality of channels extending through the gas distribution plate substantially perpendicular to the lower surface; a plurality of first gas delivery holes extending from the upper surface to the lower surface between adjacent channels of the plurality of channels to deliver a first process gas through the gas distribution plate; and a plurality of second gas delivery holes extending from the plurality of channels to the lower surface to deliver a second process gas therethrough without mixing with the first process gas.Type: GrantFiled: October 23, 2020Date of Patent: January 17, 2023Assignee: APPLIED MATERIALS, INC.Inventors: Pingyan Lei, Dien-Yeh Wu, Jallepally Ravi, Takashi Kuratomi, Xiaoxiong Yuan, Manjunatha Koppa, Vinod Konda Purathe
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Publication number: 20230002894Abstract: A method and apparatus for processing a substrate are described herein. The methods and apparatus described enable the raising and lowering of a shadow ring within a process chamber either simultaneously with or separately from a plurality of substrate lift pins. The shadow ring is raised and lowered using a shadow ring lift assembly and may be raised to a pre-determined height above the substrate during a radical treatment operation. The shadow ring lift assembly may also raise and lower the plurality of substrate lift pins to enable both the shadow ring and the substrate lift pins to be raised to a transfer position when the substrate is being transferred into or out of the process chamber.Type: ApplicationFiled: September 13, 2021Publication date: January 5, 2023Inventors: Zubin HUANG, Jallepally Ravi, Kai WU, Xiaoxiong YUAN
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Patent number: D997893Type: GrantFiled: September 28, 2021Date of Patent: September 5, 2023Assignee: APPLIED MATERIALS, INC.Inventors: Zubin Huang, Srinivas Tokur Mohana, Shreyas Patil Shanthaveeraswamy, Sandesh Yadamane, Jallepally Ravi, Harpreet Singh, Manjunatha Koppa
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Patent number: D997894Type: GrantFiled: September 28, 2021Date of Patent: September 5, 2023Assignee: Applied Materials, Inc.Inventors: Zubin Huang, Srinivas Tokur Mohana, Shreyas Patil Shanthaveeraswamy, Sandesh Yadamane, Jallepally Ravi, Harpreet Singh, Manjunatha Koppa
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Patent number: D1009817Type: GrantFiled: September 28, 2021Date of Patent: January 2, 2024Assignee: Applied Materials, Inc.Inventors: Zubin Huang, Srinivas Tokur Mohana, Shreyas Patil Shanthaveeraswamy, Sandesh Yadamane, Jallepally Ravi, Harpreet Singh, Manjunatha Koppa