Patents by Inventor Rajesh N. Gupta

Rajesh N. Gupta 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: 20230004307
    Abstract: As described herein, an apparatus may include a memory that includes a first portion, a second portion, and a third portion. The apparatus may also include a memory controller that includes a first logical-to-physical table stored in a buffer memory. The memory controller may determine that the first portion is accessed sequential to the second portion and may adjust the first logical-to-physical table to cause a memory transaction performed by the memory controller to access the third portion as opposed to the first portion.
    Type: Application
    Filed: September 6, 2022
    Publication date: January 5, 2023
    Inventor: Rajesh N. Gupta
  • Patent number: 11442631
    Abstract: As described herein, an apparatus may include a memory that includes a first portion, a second portion, and a third portion. The apparatus may also include a memory controller that includes a first logical-to-physical table stored in a buffer memory. The memory controller may determine that the first portion is accessed sequential to the second portion and may adjust the first logical-to-physical table to cause a memory transaction performed by the memory controller to access the third portion as opposed to the first portion.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: September 13, 2022
    Assignee: Micron Technology, Inc.
    Inventor: Rajesh N. Gupta
  • Patent number: 11302703
    Abstract: Some embodiments include a memory cell with two transistors and one capacitor. The transistors are a first transistor and a second transistor. The capacitor has a first node coupled with a source/drain region of the first transistor, and has a second node coupled with a source/drain region of the second transistor. The memory cell has a first body region adjacent the source/drain region of the first transistor, and has a second body region adjacent the source/drain region of the second transistor. A first body connection line couples the first body region of the memory cell to a first reference voltage. A second body connection line couples the second body region of the memory cell to a second reference voltage. The first and second reference voltages may be the same as one another, or may be different from one another.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: April 12, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Kamal M. Karda, Chandra Mouli, Srinivas Pulugurtha, Rajesh N. Gupta
  • Publication number: 20210200447
    Abstract: As described herein, an apparatus may include a memory that includes a first portion, a second portion, and a third portion. The apparatus may also include a memory controller that includes a first logical-to-physical table stored in a buffer memory. The memory controller may determine that the first portion is accessed sequential to the second portion and may adjust the first logical-to-physical table to cause a memory transaction performed by the memory controller to access the third portion as opposed to the first portion.
    Type: Application
    Filed: December 26, 2019
    Publication date: July 1, 2021
    Inventor: Rajesh N. Gupta
  • Patent number: 10914780
    Abstract: A measurement circuit may include a transistor having a first terminal, a second terminal, and a third terminal, wherein the first terminal is coupled to a first reference voltage. The measurement circuit may further include a first operational amplifier including a first input coupled to the second terminal of the transistor and an output coupled to the third terminal of the transistor. The first operational amplifier may further include a second input configured to receive a second reference voltage. The measurement circuit may also include a first unity-gain voltage follower including a second operational amplifier having a first input coupled to the first input of the first operational amplifier. Methods of measuring a threshold voltage, semiconductor devices, and electronic systems are also described.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: February 9, 2021
    Assignee: Micron Technology, Inc.
    Inventors: Binoy Jose Panakkal, Rajesh N. Gupta
  • Patent number: 10886273
    Abstract: Some embodiments include gated bipolar junction transistors. The transistors may include a base region between a collector region and an emitter region; with a B-C junction being at an interface of the base region and the collector region, and with a B-E junction being at an interface of the base region and the emitter region. The transistors may include material having a bandgap of at least 1.2 eV within one or more of the base, emitter and collector regions. The gated transistors may include a gate along the base region and spaced from the base region by dielectric material, with the gate not overlapping either the B-C junction or the B-E junction. Some embodiments include memory arrays containing gated bipolar junction transistors. Some embodiments include methods of forming gated bipolar junction transistors.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: January 5, 2021
    Assignee: Micron Technology, Inc.
    Inventors: Rajesh N. Gupta, Farid Nemati, Scott T. Robins
  • Publication number: 20200203338
    Abstract: Some embodiments include a memory cell with two transistors and one capacitor. The transistors are a first transistor and a second transistor. The capacitor has a first node coupled with a source/drain region of the first transistor, and has a second node coupled with a source/drain region of the second transistor. The memory cell has a first body region adjacent the source/drain region of the first transistor, and has a second body region adjacent the source/drain region of the second transistor. A first body connection line couples the first body region of the memory cell to a first reference voltage. A second body connection line couples the second body region of the memory cell to a second reference voltage. The first and second reference voltages may be the same as one another, or may be different from one another.
    Type: Application
    Filed: February 27, 2020
    Publication date: June 25, 2020
    Applicant: Micron Technology, Inc.
    Inventors: Kamal M. Karda, Chandra Mouli, Srinivas Pulugurtha, Rajesh N. Gupta
  • Publication number: 20200200816
    Abstract: A measurement circuit may include a transistor having a first terminal, a second terminal, and a third terminal, wherein the first terminal is coupled to a first reference voltage. The measurement circuit may further include a first operational amplifier including a first input coupled to the second terminal of the transistor and an output coupled to the third terminal of the transistor. The first operational amplifier may further include a second input configured to receive a second reference voltage. The measurement circuit may also include a first unity-gain voltage follower including a second operational amplifier having a first input coupled to the first input of the first operational amplifier. Methods of measuring a threshold voltage, semiconductor devices, and electronic systems are also described.
    Type: Application
    Filed: December 20, 2018
    Publication date: June 25, 2020
    Inventors: Binoy Jose Panakkal, Rajesh N. Gupta
  • Publication number: 20200176255
    Abstract: A method of forming sublithographic features. The method comprises forming a pattern of lines at a first pitch, the lines comprising horizontal portions and sloped portions. A spacer material is formed adjacent to the lines and portions of the spacer material are removed to form spacers on the lines, the spacers comprising a second pitch. The lines are removed. A sloped profile of the lines prevents the formation of loops of the spacer material, enabling the formation of sublithographic features without using a chop mask or chop mask process acts. Additional methods are disclosed.
    Type: Application
    Filed: December 3, 2018
    Publication date: June 4, 2020
    Inventors: Akash Nigam, Rajesh N. Gupta
  • Patent number: 10607988
    Abstract: Some embodiments include a memory cell with two transistors and one capacitor. The transistors are a first transistor and a second transistor. The capacitor has a first node coupled with a source/drain region of the first transistor, and has a second node coupled with a source/drain region of the second transistor. The memory cell has a first body region adjacent the source/drain region of the first transistor, and has a second body region adjacent the source/drain region of the second transistor. A first body connection line couples the first body region of the memory cell to a first reference voltage. A second body connection line couples the second body region of the memory cell to a second reference voltage. The first and second reference voltages may be the same as one another, or may be different from one another.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: March 31, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Kamal M. Karda, Chandra Mouli, Srinivas Pulugurtha, Rajesh N. Gupta
  • Publication number: 20190296016
    Abstract: Some embodiments include gated bipolar junction transistors. The transistors may include a base region between a collector region and an emitter region; with a B-C junction being at an interface of the base region and the collector region, and with a B-E junction being at an interface of the base region and the emitter region. The transistors may include material having a bandgap of at least 1.2 eV within one or more of the base, emitter and collector regions. The gated transistors may include a gate along the base region and spaced from the base region by dielectric material, with the gate not overlapping either the B-C junction or the B-E junction. Some embodiments include memory arrays containing gated bipolar junction transistors. Some embodiments include methods of forming gated bipolar junction transistors.
    Type: Application
    Filed: June 10, 2019
    Publication date: September 26, 2019
    Applicant: Micron Technology, Inc.
    Inventors: Rajesh N. Gupta, Farid Nemati, Scott T. Robins
  • Publication number: 20190259769
    Abstract: Some embodiments include a memory cell with two transistors and one capacitor. The transistors are a first transistor and a second transistor. The capacitor has a first node coupled with a source/drain region of the first transistor, and has a second node coupled with a source/drain region of the second transistor. The memory cell has a first body region adjacent the source/drain region of the first transistor, and has a second body region adjacent the source/drain region of the second transistor. A first body connection line couples the first body region of the memory cell to a first reference voltage. A second body connection line couples the second body region of the memory cell to a second reference voltage. The first and second reference voltages may be the same as one another, or may be different from one another.
    Type: Application
    Filed: April 30, 2019
    Publication date: August 22, 2019
    Applicant: Micron Technology, Inc.
    Inventors: Kamal M. Karda, Chandra Mouli, Srinivas Pulugurtha, Rajesh N. Gupta
  • Patent number: 10381357
    Abstract: Some embodiments include a memory cell with two transistors and one capacitor. The transistors are a first transistor and a second transistor. The capacitor has a first node coupled with a source/drain region of the first transistor, and has a second node coupled with a source/drain region of the second transistor. The memory cell has a first body region adjacent the source/drain region of the first transistor, and has a second body region adjacent the source/drain region of the second transistor. A first body connection line couples the first body region of the memory cell to a first reference voltage. A second body connection line couples the second body region of the memory cell to a second reference voltage. The first and second reference voltages may be the same as one another, or may be different from one another.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: August 13, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Kamal M. Karda, Chandra Mouli, Srinivas Pulugurtha, Rajesh N. Gupta
  • Patent number: 10373956
    Abstract: Some embodiments include gated bipolar junction transistors. The transistors may include a base region between a collector region and an emitter region; with a B-C junction being at an interface of the base region and the collector region, and with a B-E junction being at an interface of the base region and the emitter region. The transistors may include material having a bandgap of at least 1.2 eV within one or more of the base, emitter and collector regions. The gated transistors may include a gate along the base region and spaced from the base region by dielectric material, with the gate not overlapping either the B-C junction or the B-E junction. Some embodiments include memory arrays containing gated bipolar junction transistors. Some embodiments include methods of forming gated bipolar junction transistors.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: August 6, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Rajesh N. Gupta, Farid Nemati, Scott T. Robins
  • Patent number: 10242738
    Abstract: Apparatus and methods are disclosed, including a method that performs a first operation on a first resistance variable element using a common source voltage, a first data line voltage and a first control gate voltage, and then performs a second operation on a second resistance variable element using the common source voltage, a second data line voltage and a second control gate voltage. Additional apparatus and methods are described.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: March 26, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Seshadri K. Kolluri, Rajesh N. Gupta
  • Publication number: 20190067298
    Abstract: Some embodiments include a memory cell with two transistors and one capacitor. The transistors are a first transistor and a second transistor. The capacitor has a first node coupled with a source/drain region of the first transistor, and has a second node coupled with a source/drain region of the second transistor. The memory cell has a first body region adjacent the source/drain region of the first transistor, and has a second body region adjacent the source/drain region of the second transistor. A first body connection line couples the first body region of the memory cell to a first reference voltage. A second body connection line couples the second body region of the memory cell to a second reference voltage. The first and second reference voltages may be the same as one another, or may be different from one another.
    Type: Application
    Filed: July 24, 2018
    Publication date: February 28, 2019
    Applicant: Micron Technology, Inc.
    Inventors: Kamal M. Karda, Chandra Mouli, Srinivas Pulugurtha, Rajesh N. Gupta
  • Publication number: 20180166138
    Abstract: Apparatus and methods are disclosed, including a method that performs a first operation on a first resistance variable element using a common source voltage, a first data line voltage and a first control gate voltage, and then performs a second operation on a second resistance variable element using the common source voltage, a second data line voltage and a second control gate voltage. Additional apparatus and methods are described.
    Type: Application
    Filed: December 11, 2017
    Publication date: June 14, 2018
    Inventors: Seshadri K. Kolluri, Rajesh N. Gupta
  • Patent number: 9842649
    Abstract: Apparatus and methods are disclosed, including a method that performs a first operation on a first resistance variable element using a common source voltage, a first data line voltage and a first control gate voltage, and then performs a second operation on a second resistance variable element using the common source voltage, a second data line voltage and a second control gate voltage. Additional apparatus and methods are described.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: December 12, 2017
    Assignee: Micron Technology, Inc.
    Inventors: Seshadri K. Kolluri, Rajesh N. Gupta
  • Patent number: 9761590
    Abstract: A method for memory device fabrication includes forming a plurality of continuous fins on a substrate. An insulator material is formed around the fins. The continuous fins are etched into segmented fins to form exposed areas between the segmented fins. An insulator material is formed in the exposed areas wherein the insulator material in the exposed areas is formed higher than the insulator material around the fins. A metal is formed over the fins and the insulator material. The metal formed over the exposed areas is formed to a shallower depth than over the fins.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: September 12, 2017
    Assignee: Micron Technology, Inc.
    Inventors: Srinivas Pulugurtha, Sourabh Dhir, Rajesh N. Gupta, Sanh D. Tang, Si-Woo Lee, Haitao Liu
  • Patent number: 9691465
    Abstract: Some embodiments include thyristors having first and second electrode regions, first and second base regions, and material having a bandgap of at least 1.2 eV in at least one of the regions. The first base region is between the first electrode region and the second base region, and the second base region is between the second electrode region and the first base region. The first base region interfaces with the first electrode region at a first junction, and interfaces with the second base region at a second junction. The second base region interfaces with the second electrode region at a third junction. A gate is along the first base region, and in some embodiments does not overlap either of the first and second junctions. Some embodiments include methods of programming thyristors, and some embodiments include methods of forming thyristors.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: June 27, 2017
    Assignee: Micron Technology, Inc.
    Inventors: Farid Nemati, Scott T. Robins, Rajesh N. Gupta