Patents by Inventor Sanket S. Kelkar

Sanket S. Kelkar 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: 20240136391
    Abstract: A microelectronic device comprises an access device comprising a source region and a drain region spaced from the source region, an insulative material vertically adjacent to the access device, and a capacitor within the insulative material and in electrical communication with the access device. The capacitor comprises a material comprising silicon oxynitride or titanium silicon nitride over surfaces of the insulative material, a first electrode comprising titanium nitride on the material, a dielectric material over the first electrode, and a second electrode on the dielectric material. Related methods of forming the microelectronic device and an electronic system including the microelectronic devices are also described.
    Type: Application
    Filed: October 18, 2022
    Publication date: April 25, 2024
    Inventors: Sanket S. Kelkar, Michael Mutch, Luca Fumagalli, Hisham Abdussamad Abbas, Brenda D. Kraus, Dojun Kim, Christopher W. Petz, Darwin Franseda Fan
  • Patent number: 11587938
    Abstract: Some embodiments include a capacitor having a container-shaped bottom portion. The bottom portion has a first region over a second region. The first region is thinner than the second region. The first region is a leaker region and the second region is a bottom electrode region. The bottom portion has an interior surface that extends along the first and second regions. An insulative material extends into the container shape. The insulative material lines the interior surface of the container shape. A conductive plug extends into the container shape and is adjacent the insulative material. A conductive structure extends across the conductive plug, the insulative material and the first region of the bottom portion. The conductive structure directly contacts the insulative material and the first region of the bottom portion, and is electrically coupled with the conductive plug. Some embodiments include methods of forming assemblies.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: February 21, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Michael Mutch, Sanket S. Kelkar, Ashonita A. Chavan, Sameer Chhajed, Adriel Jebin Jacob Jebaraj
  • Publication number: 20220208767
    Abstract: A DRAM capacitor comprising a first capacitor electrode configured as a container and comprising a doped titanium nitride material, a capacitor dielectric on the first capacitor electrode, and a second capacitor electrode on the capacitor dielectric. Methods of forming the DRAM capacitor are also disclosed, as are semiconductor devices and systems comprising such DRAM capacitors.
    Type: Application
    Filed: March 17, 2022
    Publication date: June 30, 2022
    Inventors: Matthew N. Rocklein, Paul A. Paduano, Sanket S. Kelkar, Christopher W. Petz, Zhe Song, Vassil Antonov, Qian Tao
  • Patent number: 11322502
    Abstract: An apparatus comprising a memory array comprising access lines. Each of the access lines comprises an insulating material adjacent a bottom surface and sidewalls of a base material, a first conductive material adjacent the insulating material, a second conductive material adjacent the first conductive material, and a barrier material between the first conductive material and the second conductive material. The barrier material is configured to suppress migration of reactive species from the second conductive material. Methods of forming the apparatus and electronic systems are also disclosed.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: May 3, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Dojun Kim, Christopher W. Petz, Sanket S. Kelkar, Hidekazu Nobuto
  • Patent number: 11289487
    Abstract: A DRAM capacitor comprising a first capacitor electrode configured as a container and comprising a doped titanium nitride material, a capacitor dielectric on the first capacitor electrode, and a second capacitor electrode on the capacitor dielectric. Methods of forming the DRAM capacitor are also disclosed, as are semiconductor devices and systems comprising such DRAM capacitors.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: March 29, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Matthew N. Rocklein, Paul A. Paduano, Sanket S. Kelkar, Christopher W. Petz, Zhe Song, Vassil Antonov, Qian Tao
  • Patent number: 11251261
    Abstract: Methods, apparatuses, and systems related to forming a barrier material on an electrode are described. An example method includes forming a top electrode of a storage node on a dielectric material in a semiconductor fabrication sequence and forming, in-situ in a semiconductor fabrication apparatus, a barrier material on the top electrode to reduce damage to the dielectric material when ex-situ of the semiconductor fabrication apparatus.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: February 15, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Sanket S Kelkar, An-Jen B. Cheng, Dojun Kim, Christopher W. Petz, Matthew N. Rocklein, Brenda D. Kraus
  • Publication number: 20220028968
    Abstract: Methods, apparatuses, and systems related to forming a barrier material between an electrode and a dielectric material are described. An example method includes forming a dielectric material on a bottom electrode material of a storage node in a semiconductor fabrication process. The method further includes forming a barrier material on the dielectric material to reduce oxygen vacancies in the dielectric material. The method further includes forming a top electrode on the barrier material.
    Type: Application
    Filed: October 11, 2021
    Publication date: January 27, 2022
    Inventors: Sanket S. Kelkar, Christopher W. Petz, Dojun Kim, Matthew N. Rocklein, Brenda D. Kraus
  • Publication number: 20210391343
    Abstract: Some embodiments include a capacitor having a container-shaped bottom portion. The bottom portion has a first region over a second region. The first region is thinner than the second region. The first region is a leaker region and the second region is a bottom electrode region. The bottom portion has an interior surface that extends along the first and second regions. An insulative material extends into the container shape. The insulative material lines the interior surface of the container shape. A conductive plug extends into the container shape and is adjacent the insulative material. A conductive structure extends across the conductive plug, the insulative material and the first region of the bottom portion. The conductive structure directly contacts the insulative material and the first region of the bottom portion, and is electrically coupled with the conductive plug. Some embodiments include methods of forming assemblies.
    Type: Application
    Filed: June 10, 2020
    Publication date: December 16, 2021
    Applicant: Micron Technology, Inc.
    Inventors: Michael Mutch, Sanket S. Kelkar, Ashonita A. Chavan, Sameer Chhajed, Adriel Jebin Jacob Jebaraj
  • Publication number: 20210358919
    Abstract: Methods for forming microelectronic devices include forming a titanium nitride (TiN) material over a precursor structure. Forming the TiN material comprises repeating cycles of flowing a titanium-including gas adjacent the precursor structure; flowing a reducing gas over the precursor structure; flowing a nitrogen-including gas over the precursor structure; and, before and after flowing the nitrogen-including gas, purging gas. Related microelectronic device and related electronic systems are also described.
    Type: Application
    Filed: May 14, 2020
    Publication date: November 18, 2021
    Inventors: Dojun Kim, Sanket S. Kelkar, Christopher W. Petz, Anthony J. Kanago, Brenda D. Kraus, Soichi Sugiura
  • Patent number: 11145710
    Abstract: Methods, apparatuses, and systems related to forming a barrier material between an electrode and a dielectric material are described. An example method includes forming a dielectric material on a bottom electrode material of a storage node in a semiconductor fabrication process. The method further includes forming a barrier material on the dielectric material to reduce oxygen vacancies in the dielectric material. The method further includes forming a top electrode on the barrier material.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: October 12, 2021
    Assignee: Micron Technology, Inc.
    Inventors: Sanket S. Kelkar, Christopher W. Petz, Dojun Kim, Matthew N. Rocklein, Brenda D. Kraus
  • Publication number: 20210013318
    Abstract: Apparatuses, methods, and systems related to electrode formation are described. A first portion of a top electrode is formed over a dielectric material of a storage node. A metal oxide is formed over the first portion of the electrode. A second portion of the electrode is formed over the metal oxide.
    Type: Application
    Filed: July 11, 2019
    Publication date: January 14, 2021
    Inventors: An-Jen B. Cheng, Brenda D. Kraus, Sanket S. Kelkar, Matthew N. Rocklein, Christopher W. Petz, Richard Beeler, Dojun Kim
  • Publication number: 20210013213
    Abstract: An apparatus comprising a memory array comprising access lines. Each of the access lines comprises an insulating material adjacent a bottom surface and sidewalls of a base material, a first conductive material adjacent the insulating material, a second conductive material adjacent the first conductive material, and a barrier material between the first conductive material and the second conductive material. The barrier material is configured to suppress migration of reactive species from the second conductive material. Methods of forming the apparatus and electronic systems are also disclosed.
    Type: Application
    Filed: July 8, 2019
    Publication date: January 14, 2021
    Inventors: Dojun Kim, Christopher W. Petz, Sanket S. Kelkar, Hidekazu Nobuto
  • Publication number: 20200365684
    Abstract: Methods, apparatuses, and systems related to forming a barrier material on an electrode are described. An example method includes forming a top electrode of a storage node on a dielectric material in a semiconductor fabrication sequence and forming, in-situ in a semiconductor fabrication apparatus, a barrier material on the top electrode to reduce damage to the dielectric material when ex-situ of the semiconductor fabrication apparatus.
    Type: Application
    Filed: May 17, 2019
    Publication date: November 19, 2020
    Inventors: Sanket S Kelkar, An-Jen B. Cheng, Dojun Kim, Christopher W. Petz, Matthew N. Rocklein, Brenda D. Kraus
  • Patent number: 10811419
    Abstract: Methods, apparatuses, and systems related to shaping a storage node material are described. An example method includes forming a pillar with a pattern of materials. The method further includes depositing a storage node material on a side of the pillar. The method further includes etching sacrificial materials within the pillar. The method further includes etching the storage node material in a direction from the pillar into the storage node.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: October 20, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Devesh Dadhich Shreeram, Sanket S. Kelkar, Gurpreet S. Lugani, Paul A. Paduano, Matthew N. Rocklein, Sanjeev Sapra, Christopher W. Petz
  • Publication number: 20190267383
    Abstract: A DRAM capacitor comprising a first capacitor electrode configured as a container and comprising a doped titanium nitride material, a capacitor dielectric on the first capacitor electrode, and a second capacitor electrode on the capacitor dielectric. Methods of forming the DRAM capacitor are also disclosed, as are semiconductor devices and systems comprising such DRAM capacitors.
    Type: Application
    Filed: February 23, 2018
    Publication date: August 29, 2019
    Inventors: Matthew N. Rocklein, Paul A. Paduano, Sanket S. Kelkar, Christopher W. Petz, Zhe Song, Vassil Antonov, Qian Tao