Patents by Inventor Srivatsan Venkatesan

Srivatsan Venkatesan 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).

  • Patent number: 11984161
    Abstract: Systems, methods, and apparatus related to spike current suppression in a memory array. In one approach, a memory device includes a memory array having a cross-point memory architecture. The memory array has access lines (e.g., word lines and/or bit lines) configured to access memory cells of the memory array. Each access line has left and right portions. Spike current suppression is implemented by charge screening structures. The charge screening structures are formed by laterally integrating insulating layers into selected interior regions of the left and/or right portions of the access line. The insulating layers vertically separate the access line into top and bottom conductive portions above and below the insulating layers. For memory cells located overlying or underlying the insulating layers, the resistance to each memory cell is increased because the cell is accessed using only the higher resistance path of the top or bottom conductive portion.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: May 14, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Srivatsan Venkatesan, Sundaravadivel Rajarajan, Iniyan Soundappa Elango, Robert Douglas Cassel
  • Patent number: 11862215
    Abstract: Systems, methods, and apparatus related to spike current suppression in a memory array. In one approach, a memory device includes a memory array having a cross-point memory architecture. The memory array has access lines (e.g., word lines and/or bit lines) configured to access memory cells of the memory array. Each access line is formed of a conductive material (e.g., tungsten). The access line includes one or more resistive layers (e.g., tungsten silicon nitride) each having a resistivity greater than the resistivity of the conductive material used to form the access line. The resistive layers are formed overlying or underlying at least a portion of the memory cells. A driver is electrically connected to the access line using a via. The driver generates a voltage on the access line to access the memory cells.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: January 2, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Sateesh Talasila, Chandrasekhar Mandalapu, Robert Douglas Cassel, Sundaravadivel Rajarajan, Iniyan Soundappa Elango, Srivatsan Venkatesan
  • Patent number: 11715520
    Abstract: Systems, methods, and apparatus related to spike current suppression in a memory array. In one approach, a memory device includes a memory array having a cross-point memory architecture. The memory array has access lines (e.g., word lines and/or bit lines) configured to access memory cells of the memory array. Each access line has left and right portions. A conductive layer is positioned in the access line between the left and right portions. The conductive layer is formed in a socket that has been etched or otherwise formed in the access line to provide an opening. This opening is filled by the conductive layer. The conductive layer electrically connects the left and right portions of the access line to a via. A driver is electrically connected to the via for generating a voltage on the access line for accessing one or more memory cells.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: August 1, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Robert Douglas Cassel, Sundaravadivel Rajarajan, Srivatsan Venkatesan, Iniyan Soundappa Elango
  • Publication number: 20230171968
    Abstract: Systems, methods, and apparatus related to spike current suppression in a memory array. In one approach, a memory device includes a memory array having a crosspoint memory architecture. The memory array has access lines (e.g., word lines and/or bit lines) configured to access memory cells of the memory array. Spike current suppression is implemented using a folded access line structure. Each access line includes integrated top and bottom insulating layers that restrict current flow to the memory cells through a narrower middle portion of the access line. For near memory cells located overlying or underlying the insulating layers, the resistance to each memory cell is increased because the cell is accessed using only the higher resistance path of the meandering, folded circuit path that flows through the middle portion. Spike discharge that occurs when the memory cell is selected is reduced by this higher resistance path.
    Type: Application
    Filed: November 29, 2021
    Publication date: June 1, 2023
    Inventors: Srivatsan Venkatesan, Fabio Pellizzer
  • Publication number: 20230069190
    Abstract: Systems, methods, and apparatus related to spike current suppression in a memory array. In one approach, a memory device includes a memory array having a crosspoint memory architecture. The memory array has access lines (e.g., word lines and/or bit lines) configured to access memory cells of the memory array. Each access line is formed of a conductive material (e.g., tungsten). The access line includes one or more resistive layers (e.g., tungsten silicon nitride) each having a resistivity greater than the resistivity of the conductive material used to form the access line. The resistive layers are formed overlying or underlying at least a portion of the memory cells. A driver is electrically connected to the access line using a via. The driver generates a voltage on the access line to access the memory cells.
    Type: Application
    Filed: August 27, 2021
    Publication date: March 2, 2023
    Inventors: Sateesh Talasila, Chandrasekhar Mandalapu, Robert Douglas Cassel, Sundaravadivel Rajarajan, Iniyan Soundappa Elango, Srivatsan Venkatesan
  • Publication number: 20230018390
    Abstract: Systems, methods, and apparatus related to spike current suppression in a memory array. In one approach, a memory device includes a memory array having a cross-point memory architecture. The memory array has access lines (e.g., word lines and/or bit lines) configured to access memory cells of the memory array. Each access line is split into left and right portions. Each portion is electrically connected to a single via, which a driver uses to generate a voltage on the access line. To reduce electrical discharge associated with current spikes, a first resistor is located between the left portion and the via, and a second resistor is located between the right portion and the via.
    Type: Application
    Filed: September 13, 2022
    Publication date: January 19, 2023
    Inventors: Sundaravadivel Rajarajan, Srivatsan Venkatesan, Iniyan Soundappa Elango, Robert Douglas Cassel
  • Patent number: 11514985
    Abstract: Systems, methods, and apparatus related to spike current suppression in a memory array. In one approach, a memory device includes a memory array having a cross-point memory architecture. The memory array has access lines (e.g., word lines and/or bit lines) configured to access memory cells of the memory array. Each access line is split into left and right portions. Each portion is electrically connected to a single via, which a driver uses to generate a voltage on the access line. To reduce electrical discharge associated with current spikes, a first resistor is located between the left portion and the via, and a second resistor is located between the right portion and the via.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: November 29, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Sundaravadivel Rajarajan, Srivatsan Venkatesan, Iniyan Soundappa Elango, Robert Douglas Cassel
  • Publication number: 20220319592
    Abstract: Systems, methods, and apparatus related to spike current suppression in a memory array. In one approach, a memory device includes a memory array having a cross-point memory architecture. The memory array has access lines (e.g., word lines and/or bit lines) configured to access memory cells of the memory array. Each access line is split into left and right portions. Each portion is electrically connected to a single via, which a driver uses to generate a voltage on the access line. To reduce electrical discharge associated with current spikes, a first resistor is located between the left portion and the via, and a second resistor is located between the right portion and the via.
    Type: Application
    Filed: April 5, 2021
    Publication date: October 6, 2022
    Inventors: Sundaravadivel Rajarajan, Srivatsan Venkatesan, Iniyan Soundappa Elango, Robert Douglas Cassel
  • Publication number: 20220319594
    Abstract: Systems, methods, and apparatus related to spike current suppression in a memory array. In one approach, a memory device includes a memory array having a cross-point memory architecture. The memory array has access lines (e.g., word lines and/or bit lines) configured to access memory cells of the memory array. Each access line has left and right portions. Spike current suppression is implemented by charge screening structures. The charge screening structures are formed by laterally integrating insulating layers into selected interior regions of the left and/or right portions of the access line. The insulating layers vertically separate the access line into top and bottom conductive portions above and below the insulating layers. For memory cells located overlying or underlying the insulating layers, the resistance to each memory cell is increased because the cell is accessed using only the higher resistance path of the top or bottom conductive portion.
    Type: Application
    Filed: May 25, 2022
    Publication date: October 6, 2022
    Inventors: Srivatsan Venkatesan, Sundaravadivel Rajarajan, Iniyan Soundappa Elango, Robert Douglas Cassel
  • Publication number: 20220319595
    Abstract: Systems, methods, and apparatus related to spike current suppression in a memory array. In one approach, a memory device includes a memory array having a cross-point memory architecture. The memory array has access lines (e.g., word lines and/or bit lines) configured to access memory cells of the memory array. Each access line has left and right portions. A conductive layer is positioned in the access line between the left and right portions. The conductive layer is formed in a socket that has been etched or otherwise formed in the access line to provide an opening. This opening is filled by the conductive layer. The conductive layer electrically connects the left and right portions of the access line to a via. A driver is electrically connected to the via for generating a voltage on the access line for accessing one or more memory cells.
    Type: Application
    Filed: April 5, 2021
    Publication date: October 6, 2022
    Inventors: Robert Douglas Cassel, Sundaravadivel Rajarajan, Srivatsan Venkatesan, Iniyan Soundappa Elango
  • Publication number: 20220254999
    Abstract: A memory cell design is disclosed. The design is particularly well-suited for three-dimensional cross-point (3D X-point) memory configurations. Various embodiments of the memory cell design include one or more electrodes having an increased resistance compared to existing memory cell designs or compared to other electrodes within a same memory cell. A memory device includes an array of memory cells with each memory cell arranged between a word line and a bit line of the memory device. Some embodiments include additional material layers to increase memory cell resistance. Some embodiments include electrodes having an increased thickness to increase the resistance. Some embodiments include electrodes having a composition with a higher resistivity. Some embodiments include electrodes with increased interface resistance. Some embodiments include a combination of such features.
    Type: Application
    Filed: February 28, 2022
    Publication date: August 11, 2022
    Inventors: Srivatsan VENKATESAN, Davide MANTEGAZZA, John GORMAN, Iniyan Soundappa ELANGO, Davide FUGAZZA, Andrea REDAELLI, Fabio PELLIZZER
  • Patent number: 11348640
    Abstract: Systems, methods, and apparatus related to spike current suppression in a memory array. In one approach, a memory device includes a memory array having a cross-point memory architecture. The memory array has access lines (e.g., word lines and/or bit lines) configured to access memory cells of the memory array. Each access line has left and right portions. Spike current suppression is implemented by charge screening structures. The charge screening structures are formed by laterally integrating insulating layers into selected interior regions of the left and/or right portions of the access line. The insulating layers vertically separate the access line into top and bottom conductive portions above and below the insulating layers. For memory cells located overlying or underlying the insulating layers, the resistance to each memory cell is increased because the cell is accessed using only the higher resistance path of the top or bottom conductive portion.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: May 31, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Srivatsan Venkatesan, Sundaravadivel Rajarajan, Iniyan Soundappa Elango, Robert Douglas Cassel
  • Patent number: 11348149
    Abstract: A computer program, computer-implemented process, and/or an apparatus may detect an event in a webpage or an application, and adjust a lead score by comparing the event with implicit lead scoring rules, explicit lead scoring rules, lead state, or any combination thereof. Using the lead score, the event is assigned to a category or classification for purposes of identifying a positive or negative lead.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: May 31, 2022
    Inventors: Srivatsan Venkatesan, Tarkeshwar Thakur, Vijayaragavan Venkatarathinam, Bhagirath Goud, Pratheeswaran Ramasamy
  • Patent number: 11264567
    Abstract: Various embodiments of a three-dimensional cross-point (3D X-point) memory cell design include one or more electrodes having an increased resistance compared to existing memory cell designs or compared to other electrodes within a same memory cell. A memory device includes an array of memory cells with each memory cell arranged between a word line and a bit line of the memory device. Some embodiments include additional material layers to increase memory cell resistance. Some embodiments include electrodes having an increased thickness to increase the resistance. Some embodiments include electrodes having a composition with a higher resistivity. Some embodiments include electrodes with increased interface resistance. Some embodiments include a combination of such features. In any case, the resulting increased memory cell resistance causes a reduction in the transient selection current for the given memory cell.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: March 1, 2022
    Assignee: Intel Corporation
    Inventors: Srivatsan Venkatesan, Davide Mantegazza, John Gorman, Iniyan Soundappa Elango, Davide Fugazza, Andrea Redaelli, Fabio Pellizzer
  • Publication number: 20210151672
    Abstract: A memory cell design is disclosed. The design is particularly well-suited for three-dimensional cross-point (3D X-point) memory configurations. Various embodiments of the memory cell design include one or more electrodes having an increased resistance compared to existing memory cell designs or compared to other electrodes within a same memory cell. A memory device includes an array of memory cells with each memory cell arranged between a word line and a bit line of the memory device. Some embodiments include additional material layers to increase memory cell resistance. Some embodiments include electrodes having an increased thickness to increase the resistance. Some embodiments include electrodes having a composition with a higher resistivity. Some embodiments include electrodes with increased interface resistance. Some embodiments include a combination of such features.
    Type: Application
    Filed: November 19, 2019
    Publication date: May 20, 2021
    Applicant: INTEL CORPORATION
    Inventors: SRIVATSAN VENKATESAN, DAVIDE MANTEGAZZA, JOHN GORMAN, INIYAN SOUNDAPPA ELANGO, DAVIDE FUGAZZA, ANDREA REDAELLI, FABIO PELLIZZER
  • Patent number: 10218654
    Abstract: In an approach to save-to location selection, a computing device accesses a metadata file comprising a data table. The computing device checks the data table for entries that match one or more features of a file to be saved, wherein each match is associated with a save-to location. The computing device computes confidence scores for each save-to location based on a predefined weight associated with to each feature. The computing device produces a list of recommended save-to locations based on the confidence scores. The computing device receives a user selection based on or overriding the recommendations. The computing device updates the data table with information concerning each of the features of the file and the user selection.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: February 26, 2019
    Assignee: International Business Machines Corporation
    Inventors: Anjil R. Chinnapatlolla, Vijai Kalathur, Rajaram B. Krishnamurthy, Ajay Sood, Srivatsan Venkatesan
  • Patent number: 10110529
    Abstract: In an approach to save-to location selection, a computing device accesses a metadata file comprising a data table. The computing device successively checks the data table for entries that match a series of features of a file to be saved. If the computing device finds one or more matches, the computing device determines an associated save-to location. If the computing device does not find a match and has exhausted all of the series of features, the computing devices determines a default save-to location. The computing device receives a user selection based on or overriding the determination. The computing device updates the data table with information concerning each of the features of the file and information concerning the user selection.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: October 23, 2018
    Assignee: International Business Machines
    Inventors: Anjil R. Chinnapatlolla, Vijai Kalathur, Rajaram B. Krishnamurthy, Ajay Sood, Srivatsan Venkatesan
  • Publication number: 20180060929
    Abstract: A computer program, computer-implemented process, and/or an apparatus may detect an event in a webpage or an application, and adjust a lead score by comparing the event with implicit lead scoring rules, explicit lead scoring rules, lead state, or any combination thereof. Using the lead score, the event is assigned to a category or classification for purposes of identifying a positive or negative lead.
    Type: Application
    Filed: August 28, 2017
    Publication date: March 1, 2018
    Inventors: Srivatsan VENKATESAN, Tarkeshwar THAKUR, Vijayaragavan VENKATARATHINAM, Bhagirath GOUD, Pratheeswaran RAMASAMY
  • Publication number: 20170091250
    Abstract: In an approach to save-to location selection, a computing device accesses a metadata file comprising a data table. The computing device successively checks the data table for entries that match a series of features of a file to be saved. If the computing device finds one or more matches, the computing device determines an associated save-to location. If the computing device does not find a match and has exhausted all of the series of features, the computing devices determines a default save-to location. The computing device receives a user selection based on or overriding the determination. The computing device updates the data table with information concerning each of the features of the file and information concerning the user selection.
    Type: Application
    Filed: September 29, 2015
    Publication date: March 30, 2017
    Inventors: Anjil R. Chinnapatlolla, Vijai Kalathur, Rajaram B. Krishnamurthy, Ajay Sood, Srivatsan Venkatesan
  • Publication number: 20170093767
    Abstract: In an approach to save-to location selection, a computing device accesses a metadata file comprising a data table. The computing device checks the data table for entries that match one or more features of a file to be saved, wherein each match is associated with a save-to location. The computing device computes confidence scores for each save-to location based on a predefined weight associated with to each feature. The computing device produces a list of recommended save-to locations based on the confidence scores. The computing device receives a user selection based on or overriding the recommendations. The computing device updates the data table with information concerning each of the features of the file and the user selection.
    Type: Application
    Filed: September 29, 2015
    Publication date: March 30, 2017
    Inventors: Anjil R. Chinnapatlolla, Vijai Kalathur, Rajaram B. Krishnamurthy, Ajay Sood, Srivatsan Venkatesan