Patents by Inventor Varun Sharma

Varun Sharma 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: 20210358721
    Abstract: A reactor for processing substrates and methods for manufacturing and using the reactor are disclosed. Specifically, the reactor can include a material that forms gas compounds. The gas compounds are then easily removed from the reactor, thus reducing or avoiding contamination of the substrates in the reactor that would otherwise arise.
    Type: Application
    Filed: July 27, 2021
    Publication date: November 18, 2021
    Inventors: Tom Blomberg, Varun Sharma, Chiyu Zhu
  • Patent number: 11158513
    Abstract: Methods for forming a rhenium-containing film on a substrate by a cyclical deposition are disclosed. The method may include: contacting the substrate with a first vapor phase reactant comprising a rhenium precursor; and contacting the substrate with a second vapor phase reactant. Semiconductor device structures including a rhenium-containing film formed by the methods of the disclosure are also disclosed.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: October 26, 2021
    Assignee: ASM IP Holding B.V.
    Inventor: Varun Sharma
  • Patent number: 11139308
    Abstract: A method for forming a V-NAND device is disclosed. Specifically, the method involves deposition of at least one of semiconductive material, conductive material, or dielectric material to form a channel for the V-NAND device. In addition, the method may involve a pretreatment step where ALD, CVD, or other cyclical deposition processes may be used to improve adhesion of the material in the channel.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: October 5, 2021
    Assignee: ASM IP Holding B.V.
    Inventors: Tom E. Blomberg, Varun Sharma, Jan Willem Maes
  • Patent number: 11120423
    Abstract: Techniques for managing communications sessions between multiple user devices is provided. The computer system may support a capability of automatically establishing communications sessions between the user devices. For example, the computer system may receive audio data from a voice controlled device (VCD). The audio data may indicate an utterance of a user confirming that information of a payment instrument is needed for transaction. The computer system may initiate a second communications session with a second device of the user to receive the information required for the transaction. In some examples, the computer system may execute the script to synthesize text-to-speech content that requests user input for the information from the second device. Once received, the information may be stored in a user account associated with the user. The VCD may be instructed to resume communications with the user upon termination of the second communications session with the second device.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: September 14, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Aravindhan Vijayaraghavan, Jacob Daniel Robert Harding, Varun Sharma
  • Patent number: 11114283
    Abstract: A reactor for processing substrates and methods for manufacturing and using the reactor are disclosed. Specifically, the reactor can include a material that forms gas compounds. The gas compounds are then easily removed from the reactor, thus reducing or avoiding contamination of the substrates in the reactor that would otherwise arise.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: September 7, 2021
    Assignee: ASM IP Holding B.V.
    Inventors: Tom Blomberg, Varun Sharma, Chiyu Zhu
  • Patent number: 11086871
    Abstract: A database system populates various fields with information from a plurality of data sources which is matched to geographic and segment information for different reference identifiers. A series of data unions provide a selectable result set. A selection of elements from the selectable result set are used to generate qualifiers that are monitored in real time to determine when the qualifiers have been satisfied in order to set a semaphore allowing access to the selection of elements.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: August 10, 2021
    Assignee: VISA INTERNATIONAL SERVICE ASSOCIATION
    Inventors: Ranjan Dutta, Varun Sharma, Aman Madaan, Somashekhar Pammar, Zian Huang
  • Patent number: 11074617
    Abstract: A system and method to communicate individualized/customized messages to a vehicle based on the location of the vehicle, operation statuses the vehicle, and/or mobile devices of occupants of the vehicle.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: July 27, 2021
    Assignee: Visa International Service Association
    Inventors: Ajit Vilasrao Patil, Santosh Lachhman Achhra, Martin Enriquez, Sukalyan Chakraborty, Varun Sharma, Satyanarayan Belur, Diane C. Salmon, Michael Lemberger, Kelvan Howard
  • Publication number: 20210225634
    Abstract: Methods for depositing silicon-containing thin films, such as SiCN films, on a substrate in a reaction space are provided. The methods can include a vapor deposition process utilizing a vapor-phase silicon precursor comprising a halogen and a second vapor-phase reactant comprising an amine reactant. In some embodiments an atomic layer deposition (ALD) cycle comprises alternately and sequentially contacting the substrate with a silicon precursor comprising a halogen and a second reactant comprising an amine reactant. In some embodiments a SiCN thin film is deposited by alternately contacting the substrate with a halosilane such as octachlorotrisilane and an amine reactant comprising a diamine or triamine.
    Type: Application
    Filed: January 4, 2021
    Publication date: July 22, 2021
    Inventor: Varun Sharma
  • Publication number: 20210225633
    Abstract: Methods for depositing silicon-containing thin films on a substrate in a reaction space are provided. The methods can include vapor deposition processes comprising at least one deposition cycle including sequentially contacting the substrate with a silicon precursor comprising a halosilane and a second reactant comprising an acyl halide. In some embodiments a Si(O,C,N) thin film is deposited and the concentration of nitrogen and carbon in the film can be tuned by adjusting the deposition conditions.
    Type: Application
    Filed: January 4, 2021
    Publication date: July 22, 2021
    Inventor: Varun Sharma
  • Publication number: 20210175088
    Abstract: Atomic layer etching (ALE) processes are disclosed. In some embodiments, the methods comprise at least one etch cycle in which a substrate comprising a metal, metal oxide, metal nitride or metal oxynitride layer is contacted with an etch reactant comprising an vapor-phase N-substituted derivative of amine compound. In some embodiments the etch reactant reacts with the substrate surface to form volatile species including metal atoms from the substrate surface. In some embodiments a metal or metal nitride surface is oxidized as part of the ALE cycle. In some embodiments a substrate surface is contacted with a halide as part of the ALE cycle. In some embodiments a substrate surface is contacted with a plasma reactant as part of the ALE cycle.
    Type: Application
    Filed: December 7, 2020
    Publication date: June 10, 2021
    Inventors: Charles Dezelah, Varun Sharma
  • Publication number: 20210175092
    Abstract: Processes are provided herein for deposition of organic films. Organic films can be deposited, including selective deposition on one surface of a substrate relative to a second surface of the substrate. For example, polymer films may be selectively deposited on a first metallic surface relative to a second dielectric surface. Selectivity, as measured by relative thicknesses on the different layers, of above about 50% or even about 90% is achieved. The selectively deposited organic film may be subjected to an etch process to render the process completely selective. Processes are also provided for particular organic film materials, independent of selectivity. Masking applications employing selective organic films are provided. Post-deposition modification of the organic films, such as metallic infiltration and/or carbon removal, is also disclosed.
    Type: Application
    Filed: December 22, 2020
    Publication date: June 10, 2021
    Inventors: Eva E. Tois, Hidemi Suemori, Viljami J. Pore, Suvi P. Haukka, Varun Sharma, Jan Willem Maes, Delphine Longrie, Krzysztof Kachel
  • Publication number: 20210151324
    Abstract: Processes are provided herein for deposition of organic films. Organic films can be deposited, including selective deposition on one surface of a substrate relative to a second surface of the substrate. For example, polymer films may be selectively deposited on a first metallic surface relative to a second dielectric surface. Selectivity, as measured by relative thicknesses on the different layers, of above about 50% or even about 90% is achieved. The selectively deposited organic film may be subjected to an etch process to render the process completely selective. Processes are also provided for particular organic film materials, independent of selectivity.
    Type: Application
    Filed: October 23, 2020
    Publication date: May 20, 2021
    Inventors: Eva E. Tois, Hidemi Suemori, Viljami J. Pore, Suvi P. Haukka, Varun Sharma
  • Publication number: 20210118672
    Abstract: Methods of forming indium gallium zinc oxide (IGZO) films by vapor deposition are provided. The IGZO films may, for example, serve as a channel layer in a transistor device. In some embodiments atomic layer deposition processes for depositing IGZO films comprise an IGZO deposition cycle comprising alternately and sequentially contacting a substrate in a reaction space with a vapor phase indium precursor, a vapor phase gallium precursor, a vapor phase zinc precursor and an oxygen reactant. In some embodiments the ALD deposition cycle additionally comprises contacting the substrate with an additional reactant comprising one or more of NH3, N2O, NO2 and H2O2.
    Type: Application
    Filed: October 16, 2020
    Publication date: April 22, 2021
    Inventors: Oreste Madia, Andrea Illiberi, Michael Eugene Givens, Tatiana Ivanova, Charles Dezelah, Varun Sharma
  • Publication number: 20210115559
    Abstract: Passivation layers to inhibit vapor deposition can be used on reactor surfaces to minimize deposits while depositing on a substrate housed therein, or on particular substrate surfaces, such as metallic surfaces on semiconductor substrates to facilitate selective deposition on adjacent dielectric surfaces. Passivation agents that are smaller than typical self-assembled monolayer precursors can have hydrophobic or non-reactive ends and facilitate more dense passivation layers more quickly than self-assembled monolayers, particularly over complex three-dimensional structures.
    Type: Application
    Filed: December 28, 2020
    Publication date: April 22, 2021
    Inventors: Varun Sharma, Eva E. Tois
  • Publication number: 20210120042
    Abstract: Methods, systems, and computer storage media for providing detection of unsecure network policies in a network segment and automatically remediating the unsecure policies based on pre-defined network policies in a computing environment. In particular, a security maintenance manager of an access management system in the computing environment detects an unsecure network policy based on comparing an active configuration of the network segment to an expected configuration of the network segment and modifies the active configuration to at least restore restrictions of network policies of the expected configuration to the active configuration. In operation, the security maintenance manager periodically accesses an active configuration record for the network segment and compares the active configuration record to an expected configuration record for the network segment. Based on comparing the active configuration record to the expected configuration record, restrictions are remediated (e.g.
    Type: Application
    Filed: October 21, 2019
    Publication date: April 22, 2021
    Inventors: Yanelis Lopez, Krupa Ravinath Tadepalli, Varun Sharma, Johnathon Paul Mohr
  • Publication number: 20210051153
    Abstract: A least-privilege role is automatically assigned to a service principal in order to ensure that a service principal is able to perform actions on a resource of a subscription in a multi-tenant environment as intended without additional access and usage rights. The assignment of the least-privilege role is based on actions previously performed on the resources of a subscription by the service principal that match those actions within a role having the bare minimum permissions needed to perform those actions.
    Type: Application
    Filed: August 14, 2019
    Publication date: February 18, 2021
    Inventors: VERA BOGDANICH ESPINA, NICHOLAS PATRICK BROWN, VARUN SHARMA
  • Patent number: 10923361
    Abstract: Processes are provided herein for deposition of organic films. Organic films can be deposited, including selective deposition on one surface of a substrate relative to a second surface of the substrate. For example, polymer films may be selectively deposited on a first metallic surface relative to a second dielectric surface. Selectivity, as measured by relative thicknesses on the different layers, of above about 50% or even about 90% is achieved. The selectively deposited organic film may be subjected to an etch process to render the process completely selective. Processes are also provided for particular organic film materials, independent of selectivity. Masking applications employing selective organic films are provided. Post-deposition modification of the organic films, such as metallic infiltration and/or carbon removal, is also disclosed.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: February 16, 2021
    Assignee: ASM IP Holding B.V.
    Inventors: Eva E. Tois, Hidemi Suemori, Viljami J. Pore, Suvi P. Haukka, Varun Sharma, Jan Willem Maes, Delphine Longrie, Krzysztof Kachel
  • Publication number: 20210044586
    Abstract: A technique for embedding and utilizing credentials in a network address may include requesting a network address for a client device by providing an account identifier to a server computer associated with a service provider. A network address that is mapped to the account identifier can be assigned to the client device. The network address may include a routing prefix field and a network interface identifier field. The routing prefix field may include an issuer identifier of an issuer of the account, and the network interface identifier field may include an interface identifier that maps to the account identifier. By embedding credentials such as an account identifier in the network address, the actual account identifier need not be transmitted to perform actions on the account.
    Type: Application
    Filed: August 5, 2019
    Publication date: February 11, 2021
    Inventors: Varun Sharma, Hanna Endrias, Ajit Vilasrao Patil, Nandakumar Kandaloo
  • Patent number: 10900120
    Abstract: Passivation layers to inhibit vapor deposition can be used on reactor surfaces to minimize deposits while depositing on a substrate housed therein, or on particular substrate surfaces, such as metallic surfaces on semiconductor substrates to facilitate selective deposition on adjacent dielectric surfaces. Passivation agents that are smaller than typical self-assembled monolayer precursors can have hydrophobic or non-reactive ends and facilitate more dense passivation layers more quickly than self-assembled monolayers, particularly over complex three-dimensional structures.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: January 26, 2021
    Assignee: ASM IP HOLDING B.V.
    Inventors: Varun Sharma, Eva Tois
  • Publication number: 20210020468
    Abstract: To create constant partial pressures of the by-products and residence time of the gas molecules across the wafer, a dual showerhead reactor can be used. A dual showerhead structure can achieve spatially uniform partial pressures, residence times and temperatures for the etchant and for the by-products, thus leading to uniform etch rates across the wafer. The system can include differential pumping to the reactor.
    Type: Application
    Filed: July 16, 2020
    Publication date: January 21, 2021
    Inventors: Tom E. Blomberg, Varun Sharma