Patents by Inventor Arup Bhattacharyya

Arup Bhattacharyya 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: 11264472
    Abstract: In an example, a memory may have a group of series-coupled memory cells, where a memory cell of the series-coupled memory cells has an access gate, a control gate coupled to the access gate, and a dielectric stack between the control gate and a semiconductor. The dielectric stack is to store a charge.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: March 1, 2022
    Assignee: Micron Technology, Inc.
    Inventor: Arup Bhattacharyya
  • Patent number: 11211503
    Abstract: In an example, a memory array may include a memory cell around at least a portion of a semiconductor. The memory cell may include a gate, a first dielectric stack to store a charge between a first portion of the gate and the semiconductor, and a second dielectric stack to store a charge between a second portion of the gate and the semiconductor, the second dielectric stack separate from the first dielectric stack.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: December 28, 2021
    Assignee: Micron Technology, Inc.
    Inventor: Arup Bhattacharyya
  • Patent number: 11211124
    Abstract: The present disclosure includes multifunctional memory cells. A number of embodiments include a gate element, a charge transport element, a first charge storage element configured to store a first charge transported from the gate element and through the charge transport element, wherein the first charge storage element includes a nitride material, and a second charge storage element configured to store a second charge transported from the gate element and through the charge transport element, wherein the second charge storage element includes a gallium nitride material.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: December 28, 2021
    Assignee: Micron Technology, Inc.
    Inventor: Arup Bhattacharyya
  • Patent number: 11087842
    Abstract: The present disclosure includes multifunctional memory cells. A number of embodiments include a charge transport element having an oxygen-rich silicon oxynitride material, a volatile charge storage element configured to store a first charge transported through the charge transport element, and a non-volatile charge storage element configured to store a second charge transported through the charge transport element, wherein the non-volatile charge storage element includes a gallium nitride material.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: August 10, 2021
    Assignee: Micron Technology, Inc.
    Inventor: Arup Bhattacharyya
  • Publication number: 20210225446
    Abstract: The present disclosure includes multifunctional memory cells. A number of embodiments include a gate element, a charge transport element, a first charge storage element configured to store a first charge transported from the gate element and through the charge transport element, wherein the first charge storage element includes a nitride material, and a second charge storage element configured to store a second charge transported from the gate element and through the charge transport element, wherein the second charge storage element includes a gallium nitride material.
    Type: Application
    Filed: March 18, 2021
    Publication date: July 22, 2021
    Inventor: Arup Bhattacharyya
  • Patent number: 11031283
    Abstract: The present disclosure includes semiconductor structures and methods of forming semiconductor structures for trench isolation interfaces. An example semiconductor structure includes a semiconductor substrate having a shallow trench isolation (STI) structure with a trench formed therein. A material in the trench forms a charged interface by interaction with the semiconductor substrate of the STI structure. The formed charged interface raises a parasitic threshold of the STI structure.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: June 8, 2021
    Assignee: Micron Technology, Inc.
    Inventor: Arup Bhattacharyya
  • Patent number: 10998042
    Abstract: An example apparatus includes a semiconductor material, a tunneling material formed on the semiconductor material, a charge trapping material formed on the tunneling material, a charge blocking material formed on the charge trapping material, and a metal gate formed on the charge blocking material. The charge trapping material comprises gallium nitride (GaN), and the memory cell is programmed to the target state via the multi-mechanism charge transport such that charges are simultaneously transported to the charge trapping material through a plurality of different channels.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: May 4, 2021
    Assignee: Micron Technology, Inc.
    Inventor: Arup Bhattacharyya
  • Patent number: 10957389
    Abstract: The present disclosure includes multifunctional memory cells. A number of embodiments include a gate element, a charge transport element, a first charge storage element configured to store a first charge transported from the gate element and through the charge transport element, wherein the first charge storage element includes a nitride material, and a second charge storage element configured to store a second charge transported from the gate element and through the charge transport element, wherein the second charge storage element includes a gallium nitride material.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: March 23, 2021
    Assignee: Micron Technology, Inc.
    Inventor: Arup Bhattacharyya
  • Patent number: 10892340
    Abstract: In an example, a memory cell may have an interface dielectric adjacent to a semiconductor, a tunnel dielectric adjacent to the interface dielectric, a charge trap adjacent to the tunnel dielectric, a blocking dielectric adjacent to the charge trap, and a control gate adjacent to the blocking dielectric.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: January 12, 2021
    Assignee: Micron Technology, Inc.
    Inventor: Arup Bhattacharyya
  • Publication number: 20200357890
    Abstract: In an example, a memory may have a group of series-coupled memory cells, where a memory cell of the series-coupled memory cells has an access gate, a control gate coupled to the access gate, and a dielectric stack between the control gate and a semiconductor. The dielectric stack is to store a charge.
    Type: Application
    Filed: July 23, 2020
    Publication date: November 12, 2020
    Inventor: Arup Bhattacharyya
  • Patent number: 10811424
    Abstract: The present disclosure includes methods of forming, and semiconductor structures for, integrated computing structures formed on silicon. An example method includes forming, on a silicon semiconductor material, an integrated computing structure by forming a number of complementary metal-oxide-semiconductor (CMOS) devices including a plurality of materials, forming a non-volatile memory (NVM) device including a plurality of materials, and forming the plurality of materials of the CMOS devices and the plurality of materials of the NVM device from a plurality of same materials shared at a corresponding plurality of positions within the structure. A particular function is provided by each of the plurality of same materials at the corresponding plurality of positions.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: October 20, 2020
    Assignee: Micron Technology, Inc.
    Inventor: Arup Bhattacharyya
  • Patent number: 10797053
    Abstract: Examples relate generally to the field of semiconductor memory devices. In an example, a memory cell may include an access device coupled to an access line and a gated diode coupled to the access device. The gated diode may include a gate stack structure that includes a direct tunneling material, a trapping material, and a blocking material.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: October 6, 2020
    Assignee: Micron Technology, Inc.
    Inventor: Arup Bhattacharyya
  • Patent number: 10741658
    Abstract: In an example, a memory may have a group of series-coupled memory cells, where a memory cell of the series-coupled memory cells has an access gate, a control gate coupled to the access gate, and a dielectric stack between the control gate and a semiconductor. The dielectric stack is to store a charge.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: August 11, 2020
    Assignee: Micron Technology, Inc.
    Inventor: Arup Bhattacharyya
  • Publication number: 20200152269
    Abstract: The present disclosure includes multifunctional memory cells. A number of embodiments include a gate element, a charge transport element, a first charge storage element configured to store a first charge transported from the gate element and through the charge transport element, wherein the first charge storage element includes a nitride material, and a second charge storage element configured to store a second charge transported from the gate element and through the charge transport element, wherein the second charge storage element includes a gallium nitride material.
    Type: Application
    Filed: January 16, 2020
    Publication date: May 14, 2020
    Inventor: Arup Bhattacharyya
  • Publication number: 20200075394
    Abstract: The present disclosure includes semiconductor structures and methods of forming semiconductor structures for trench isolation interfaces. An example semiconductor structure includes a semiconductor substrate having a shallow trench isolation (STI) structure with a trench formed therein. A material in the trench forms a charged interface by interaction with the semiconductor substrate of the STI structure. The formed charged interface raises a parasitic threshold of the STI structure.
    Type: Application
    Filed: November 6, 2019
    Publication date: March 5, 2020
    Inventor: Arup Bhattacharyya
  • Patent number: 10566053
    Abstract: Memory cells programmed via multi-mechanism charge transports are described herein. An example apparatus includes a semiconductor material, a tunneling material formed on the semiconductor material, a charge trapping material formed on the tunneling material, a charge blocking material formed on the charge trapping material, and a metal gate formed on the charge blocking material. The charge trapping material comprises gallium nitride (GaN), and the memory cell is programmed to the target state via the multi-mechanism charge transport such that charges are simultaneously transported to the charge trapping material through a plurality of different channels.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: February 18, 2020
    Assignee: Micron Technology, Inc.
    Inventor: Arup Bhattacharyya
  • Patent number: 10546639
    Abstract: The present disclosure includes multifunctional memory cells. A number of embodiments include a gate element, a charge transport element, a first charge storage element configured to store a first charge transported from the gate element and through the charge transport element, wherein the first charge storage element includes a nitride material, and a second charge storage element configured to store a second charge transported from the gate element and through the charge transport element, wherein the second charge storage element includes a gallium nitride material.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: January 28, 2020
    Assignee: Micron Technology, Inc.
    Inventor: Arup Bhattacharyya
  • Patent number: 10541027
    Abstract: The present disclosure includes multifunctional memory cells. A number of embodiments include a charge transport element having an oxygen-rich silicon oxynitride material, a volatile charge storage element configured to store a first charge transported through the charge transport element, and a non-volatile charge storage element configured to store a second charge transported through the charge transport element, wherein the non-volatile charge storage element includes a gallium nitride material.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: January 21, 2020
    Assignee: Micron Technology, Inc.
    Inventor: Arup Bhattacharyya
  • Publication number: 20190386017
    Abstract: The present disclosure includes methods of forming, and semiconductor structures for, integrated computing structures formed on silicon. An example method includes forming, on a silicon semiconductor material, an integrated computing structure by forming a number of complementary metal-oxide-semiconductor (CMOS) devices including a plurality of materials, forming a non-volatile memory (NVM) device including a plurality of materials, and forming the plurality of materials of the CMOS devices and the plurality of materials of the NVM device from a plurality of same materials shared at a corresponding plurality of positions within the structure. A particular function is provided by each of the plurality of same materials at the corresponding plurality of positions.
    Type: Application
    Filed: August 26, 2019
    Publication date: December 19, 2019
    Inventor: Arup Bhattacharyya
  • Publication number: 20190371401
    Abstract: The present disclosure includes multifunctional memory cells. A number of embodiments include a charge transport element having an oxygen-rich silicon oxynitride material, a volatile charge storage element configured to store a first charge transported through the charge transport element, and a non-volatile charge storage element configured to store a second charge transported through the charge transport element, wherein the non-volatile charge storage element includes a gallium nitride material.
    Type: Application
    Filed: August 9, 2019
    Publication date: December 5, 2019
    Inventor: Arup Bhattacharyya