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).
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Publication number: 20230122846Abstract: 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: ApplicationFiled: March 12, 2021Publication date: April 20, 2023Inventors: Rohit KHARE, Krishna BIRRU, Gang L. LIU, Anand CHANDRASHEKAR, Leonard Wai Fung KHO
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Publication number: 20230002891Abstract: 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: ApplicationFiled: September 7, 2022Publication date: January 5, 2023Inventors: 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
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Publication number: 20220275504Abstract: 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: ApplicationFiled: May 16, 2022Publication date: September 1, 2022Inventors: 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
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Patent number: 11365479Abstract: 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: GrantFiled: July 22, 2020Date of Patent: June 21, 2022Assignee: Lam Research CorporationInventors: 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
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Publication number: 20200347497Abstract: 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: ApplicationFiled: July 22, 2020Publication date: November 5, 2020Inventors: 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
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Patent number: 10760158Abstract: 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: GrantFiled: April 16, 2018Date of Patent: September 1, 2020Assignee: Lam Research CorporationInventors: 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
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Publication number: 20190185999Abstract: 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: ApplicationFiled: April 16, 2018Publication date: June 20, 2019Inventors: 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
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Patent number: 10199267Abstract: 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: GrantFiled: June 30, 2017Date of Patent: February 5, 2019Assignee: Lam Research CorporationInventors: Rohit Khare, Jasmine Lin, Anand Chandrashekar
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Publication number: 20190006226Abstract: 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: ApplicationFiled: June 30, 2017Publication date: January 3, 2019Inventors: Rohit Khare, Jasmine Lin, Anand Chandrashekar
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Patent number: 8898800Abstract: 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: GrantFiled: March 15, 2013Date of Patent: November 25, 2014Assignee: Google Inc.Inventors: Dan Fredinburg, Rohit Khare
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Publication number: 20080189388Abstract: 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: ApplicationFiled: April 4, 2008Publication date: August 7, 2008Applicant: KnowNow-DelawareInventors: Rohit Khare, Adam Rifkin, Peyman Oreizy
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Patent number: 7379963Abstract: 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: GrantFiled: July 14, 2000Date of Patent: May 27, 2008Assignee: KnowNow-DelawareInventors: Rohit Khare, Adam Rifkin, Peyman Oreizy
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Publication number: 20030191971Abstract: 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: ApplicationFiled: April 15, 2003Publication date: October 9, 2003Applicant: WorldCom, Inc.Inventors: John C. Klensin, Rohit Khare
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Patent number: 6564327Abstract: 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: GrantFiled: December 23, 1998Date of Patent: May 13, 2003Assignee: WorldCom, Inc.Inventors: John Klensin, Rohit Khare