Patents by Inventor Rohit Khare

Rohit Khare 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: 20230122846
    Abstract: Provided herein are methods of filling features with metal including inhibition of metal nucleation. Also provided are methods of enhancing inhibition and methods of reducing or eliminating inhibition of metal nucleation.
    Type: Application
    Filed: March 12, 2021
    Publication date: April 20, 2023
    Inventors: Rohit KHARE, Krishna BIRRU, Gang L. LIU, Anand CHANDRASHEKAR, Leonard Wai Fung KHO
  • Publication number: 20230002891
    Abstract: Forming a protective coating ex situ in an atomic layer deposition process to coat one or more chamber components subsequently installed in a reaction chamber provides a number of benefits over more conventional coating methods such as in situ deposition of an undercoat. In certain cases the protective coating may have a particular composition such as aluminum oxide, aluminum fluoride, aluminum nitride, yttrium oxide, and/or yttrium fluoride. The protective coating may help reduce contamination on wafers processed using the coated chamber component. Further, the protective coating may act to stabilize the processing conditions within the reaction chamber, thereby achieving very stable/uniform processing results over the course of processing many batches of wafers, and minimizing radical loss. Also described are a number of techniques that may be used to restore the protective coating after the coated chamber component is used to process semiconductor wafers.
    Type: Application
    Filed: September 7, 2022
    Publication date: January 5, 2023
    Inventors: Damodar Rajaram SHANBHAG, Guangbi YUAN, Thadeous BAMFORD, Curtis Warren BAILEY, Tony KAUSHAL, Krishna BIRRU, William SCHLOSSER, Bo GONG, Huatan QIU, Fengyuan LAI, Leonard Wai Fung KHO, Anand CHANDRASHEKAR, Andrew H. BRENINGER, Chen-Hua HSU, Geoffrey HOHN, Gang LIU, Rohit KHARE
  • Publication number: 20220275504
    Abstract: Forming a protective coating ex situ in an atomic layer deposition process to coat one or more chamber components subsequently installed in a reaction chamber provides a number of benefits over more conventional coating methods such as in situ deposition of an undercoat. In certain cases the protective coating may have a particular composition such as aluminum oxide, aluminum fluoride, aluminum nitride, yttrium oxide, and/or yttrium fluoride. The protective coating may help reduce contamination on wafers processed using the coated chamber component. Further, the protective coating may act to stabilize the processing conditions within the reaction chamber, thereby achieving very stable/uniform processing results over the course of processing many batches of wafers, and minimizing radical loss. Also described are a number of techniques that may be used to restore the protective coating after the coated chamber component is used to process semiconductor wafers.
    Type: Application
    Filed: May 16, 2022
    Publication date: September 1, 2022
    Inventors: Damodar Rajaram SHANBHAG, Guangbi YUAN, Thadeous BAMFORD, Curtis Warren BAILEY, Tony KAUSHAL, Krishna BIRRU, William SCHLOSSER, Bo GONG, Huatan QIU, Fengyuan LAI, Leonard Wai Fung KHO, Anand CHANDRASHEKAR, Andrew H. BRENINGER, Chen-Hua HSU, Geoffrey HOHN, Gang LIU, Rohit KHARE
  • Patent number: 11365479
    Abstract: Forming a protective coating ex situ in an atomic layer deposition process to coat one or more chamber components subsequently installed in a reaction chamber provides a number of benefits over more conventional coating methods such as in situ deposition of an undercoat. In certain cases the protective coating may have a particular composition such as aluminum oxide, aluminum fluoride, aluminum nitride, yttrium oxide, and/or yttrium fluoride. The protective coating may help reduce contamination on wafers processed using the coated chamber component. Further, the protective coating may act to stabilize the processing conditions within the reaction chamber, thereby achieving very stable/uniform processing results over the course of processing many batches of wafers, and minimizing radical loss. Also described are a number of techniques that may be used to restore the protective coating after the coated chamber component is used to process semiconductor wafers.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: June 21, 2022
    Assignee: Lam Research Corporation
    Inventors: Damodar Shanbhag, Guangbi Yuan, Thadeous Bamford, Curtis Warren Bailey, Tony Kaushal, Krishna Birru, William Schlosser, Bo Gong, Huatan Qiu, Fengyuan Lai, Leonard Wai Fung Kho, Anand Chandrashekar, Andrew H. Breninger, Chen-Hua Hsu, Geoffrey Hohn, Gang Liu, Rohit Khare
  • Publication number: 20200347497
    Abstract: Forming a protective coating ex situ in an atomic layer deposition process to coat one or more chamber components subsequently installed in a reaction chamber provides a number of benefits over more conventional coating methods such as in situ deposition of an undercoat. In certain cases the protective coating may have a particular composition such as aluminum oxide, aluminum fluoride, aluminum nitride, yttrium oxide, and/or yttrium fluoride. The protective coating may help reduce contamination on wafers processed using the coated chamber component. Further, the protective coating may act to stabilize the processing conditions within the reaction chamber, thereby achieving very stable/uniform processing results over the course of processing many batches of wafers, and minimizing radical loss. Also described are a number of techniques that may be used to restore the protective coating after the coated chamber component is used to process semiconductor wafers.
    Type: Application
    Filed: July 22, 2020
    Publication date: November 5, 2020
    Inventors: Damodar Shanbhag, Guangbi Yuan, Thadeous Bamford, Curtis Warren Bailey, Tony Kaushal, Krishna Birru, William Schlosser, Bo Gong, Huatan Qiu, Fengyuan Lai, Leonard Wai Fung Kho, Anand Chandrashekar, Andrew H. Breninger, Chen-Hua Hsu, Geoffrey Hohn, Gang Liu, Rohit Khare
  • Patent number: 10760158
    Abstract: Forming a protective coating ex situ in an atomic layer deposition process to coat one or more chamber components subsequently installed in a reaction chamber provides a number of benefits over more conventional coating methods such as in situ deposition of an undercoat. In certain cases the protective coating may have a particular composition such as aluminum oxide, aluminum fluoride, aluminum nitride, yttrium oxide, and/or yttrium fluoride. The protective coating may help reduce contamination on wafers processed using the coated chamber component. Further, the protective coating may act to stabilize the processing conditions within the reaction chamber, thereby achieving very stable/uniform processing results over the course of processing many batches of wafers, and minimizing radical loss. Also described are a number of techniques that may be used to restore the protective coating after the coated chamber component is used to process semiconductor wafers.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: September 1, 2020
    Assignee: Lam Research Corporation
    Inventors: Damodar Shanbhag, Guangbi Yuan, Thadeous Bamford, Curtis Warren Bailey, Tony Kaushal, Krishna Birru, William Schlosser, Bo Gong, Fengyuan Lai, Leonard Wai Fung Kho, Anand Chandrashekar, Andrew H. Breninger, Chen-Hua Hsu, Geoffrey Hohn, Gang Liu, Rohit Khare, Huatan Qiu
  • Publication number: 20190185999
    Abstract: Forming a protective coating ex situ in an atomic layer deposition process to coat one or more chamber components subsequently installed in a reaction chamber provides a number of benefits over more conventional coating methods such as in situ deposition of an undercoat. In certain cases the protective coating may have a particular composition such as aluminum oxide, aluminum fluoride, aluminum nitride, yttrium oxide, and/or yttrium fluoride. The protective coating may help reduce contamination on wafers processed using the coated chamber component. Further, the protective coating may act to stabilize the processing conditions within the reaction chamber, thereby achieving very stable/uniform processing results over the course of processing many batches of wafers, and minimizing radical loss. Also described are a number of techniques that may be used to restore the protective coating after the coated chamber component is used to process semiconductor wafers.
    Type: Application
    Filed: April 16, 2018
    Publication date: June 20, 2019
    Inventors: Damodar Shanbhag, Guangbi Yuan, Thadeous Bamford, Curtis Warren Bailey, Tony Kaushal, Krishna Birru, William Schlosser, Bo Gong, Huatan Qiu, Fengyuan Lai, Leonard Wai Fung Kho, Anand Chandrashekar, Andrew H. Breninger, Chen-Hua Hsu, Geoffrey Hohn, Gang Liu, Rohit Khare
  • Patent number: 10199267
    Abstract: Provided herein are methods of tungsten nitride (WN) deposition. Also provided are stacks for tungsten (W) contacts to silicon germanium (SiGe) layers and methods for forming them. The stacks include SiGe/tungsten silicide (WSix)/WN/W layers, with WSix providing an ohmic contact between the SiGe and WN layers. Also provided are methods for reducing fluorine (F) attack of underlying layers in deposition of W-containing films using tungsten hexafluoride (WF6). Apparatuses to perform the methods are also provided.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: February 5, 2019
    Assignee: Lam Research Corporation
    Inventors: Rohit Khare, Jasmine Lin, Anand Chandrashekar
  • Publication number: 20190006226
    Abstract: Provided herein are methods of tungsten nitride (WN) deposition. Also provided are stacks for tungsten (W) contacts to silicon germanium (SiGe) layers and methods for forming them. The stacks include SiGe/tungsten silicide (WSix)/WN/W layers, with WSix providing an ohmic contact between the SiGe and WN layers. Also provided are methods for reducing fluorine (F) attack of underlying layers in deposition of W-containing films using tungsten hexafluoride (WF6). Apparatuses to perform the methods are also provided.
    Type: Application
    Filed: June 30, 2017
    Publication date: January 3, 2019
    Inventors: Rohit Khare, Jasmine Lin, Anand Chandrashekar
  • Patent number: 8898800
    Abstract: Example implementations described herein are directed to a trust tree that allows third party applications to operate on sensitive user data within the confines of a protected environment. The environment storing the sensitive user data prevents the third party application from receiving sensitive user data through use of an overlay, while preserving the function of the third party application. This permits the value of the application to be provided to a user without the risk of the application violating the user's privacy.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 25, 2014
    Assignee: Google Inc.
    Inventors: Dan Fredinburg, Rohit Khare
  • Publication number: 20080189388
    Abstract: Information delivery system and methods detects and organizes information into canonical topics, such as who, what, when, where, price, etc., and facilitates a user to persistently subscribe to topics, web users, web resources, event streams, etc. The system facilitates a user to register devices and applications on which to receive information, as it becomes available, related to the subscription(s). The system facilitates users to specify preferences for the topics, web users, web resources, and registrations, which prioritize delivery of information. The system senses information, aggregates the user's registrations, subscriptions, and preferences, and filters information a topic-interest basis. The system notifies a user based on the preferences.
    Type: Application
    Filed: April 4, 2008
    Publication date: August 7, 2008
    Applicant: KnowNow-Delaware
    Inventors: Rohit Khare, Adam Rifkin, Peyman Oreizy
  • Patent number: 7379963
    Abstract: Information delivery system and methods detects and organizes information into canonical topics, such as who, what, when, where, price, etc., and facilitates a user to persistently subscribe to topics, web users, web resources, event streams, etc. The system facilitates a user to register devices and applications on which to receive information, as it becomes available, related to the subscription(s). The system facilitates users to specify preferences for the topics, web users, web resources, and registrations, which prioritize delivery of information. The system senses information, aggregates the user's registrations, subscriptions, and preferences, and filters information a topic-interest basis. The system notifies a user based on the preferences.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: May 27, 2008
    Assignee: KnowNow-Delaware
    Inventors: Rohit Khare, Adam Rifkin, Peyman Oreizy
  • Publication number: 20030191971
    Abstract: A method of and system for controlling access to the Internet by members of an organization that includes at least one supervisor and at least one non-supervisor for which limited Internet access is desired. The system maintains for each member of the organization a session identifier. When the system establishes an Internet session between a member of the organization and the Internet, the system initially sets a user session identifier for said Internet session to a default session identifier, which is the session identifier for the lowers access level member of the organization. When the member requests a resource, the system determines if an access level rating for requested source is greater than the value of the access level field of the user session identifier. If so, the system blocks the resource and presents member with choices of logging on to the system as a specific member of the organization with a higher access level, or appealing the blocking to a supervisor.
    Type: Application
    Filed: April 15, 2003
    Publication date: October 9, 2003
    Applicant: WorldCom, Inc.
    Inventors: John C. Klensin, Rohit Khare
  • Patent number: 6564327
    Abstract: A method of and system for controlling access to the Internet by members of an organization that includes at least one supervisor and at least one non-supervisor for which limited Internet access is desired. The system maintains for each member of the organization a session identifier. When the system establishes an Internet session between a member of the organization and the Internet, the system initially sets a user session identifier for said Internet session to a default session identifier, which is the session identifier for the lowest access level member of the organization. When the member requests a resource, the system determines if an access level rating for requested resource is greater than the value of the access level field of the user session identifier. If so, the system blocks the resource and presents member with choices of logging on to the system as a specific member of the organization with a higher access level, or appealing the blocking to a supervisor.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: May 13, 2003
    Assignee: WorldCom, Inc.
    Inventors: John Klensin, Rohit Khare