Patents by Inventor Marcello Ravasio

Marcello Ravasio 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: 11600665
    Abstract: The disclosed technology relates generally to integrated circuit devices, and in particular to cross-point memory arrays and methods for fabricating the same. In one aspect, a method of fabricating cross-point memory arrays comprises forming a memory cell material stack which includes a first active material and a second active material over the first active material, wherein one of the first and second active materials comprises a storage material and the other of the first and second active materials comprises a selector material.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: March 7, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Marcello Ravasio, Samuele Sciarrillo, Fabio Pellizzer, Innocenzo Tortorelli, Roberto Somaschini, Cristina Casellato, Riccardo Mottadelli
  • Publication number: 20210091140
    Abstract: The disclosed technology relates generally to integrated circuit devices, and in particular to cross-point memory arrays and methods for fabricating the same. In one aspect, a method of fabricating cross-point memory arrays comprises forming a memory cell material stack which includes a first active material and a second active material over the first active material, wherein one of the first and second active materials comprises a storage material and the other of the first and second active materials comprises a selector material.
    Type: Application
    Filed: October 13, 2020
    Publication date: March 25, 2021
    Inventors: Marcello Ravasio, Samuele Sciarrillo, Fabio Pellizzer, Innocenzo Tortorelli, Roberto Somaschini, Cristina Casellato, Riccardo Mottadelli
  • Patent number: 10910437
    Abstract: A method of fabricating a memory device is disclosed. In one aspect, the method comprises patterning a first conductive line extending in a first direction. The method additionally includes forming a free-standing pillar of a memory cell stack on the first conductive line after patterning the first conductive line. Forming the free-standing pillar includes depositing a memory cell stack comprising a selector material and a storage material over the conductive line and patterning the memory cell stack to form the free-standing pillar. The method further includes patterning a second conductive line on the pillar after patterning the memory cell stack, the second conductive line extending in a second direction crossing the first direction.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: February 2, 2021
    Assignee: Micron Technology, Inc.
    Inventors: Ombretta Donghi, Marcello Ravasio, Samuele Sciarrillo, Roberto Somaschini
  • Patent number: 10886332
    Abstract: Memory cell architectures and methods of forming the same are provided. An example memory cell can include a switch element and a memory element formed in series with the switch element. A smallest lateral dimension of the switch element is different than a smallest lateral dimension of the memory element.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: January 5, 2021
    Assignee: Micron Technology, Inc.
    Inventors: Samuele Sciarrillo, Marcello Ravasio
  • Patent number: 10854674
    Abstract: The disclosed technology relates generally to integrated circuit devices, and in particular to cross-point memory arrays and methods for fabricating the same. In one aspect, a method of fabricating cross-point memory arrays comprises forming a memory cell material stack which includes a first active material and a second active material over the first active material, wherein one of the first and second active materials comprises a storage material and the other of the first and second active materials comprises a selector material.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: December 1, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Marcello Ravasio, Samuele Sciarrillo, Fabio Pellizzer, Innocenzo Tortorelli, Roberto Somaschini, Cristina Casellato, Riccardo Mottadelli
  • Patent number: 10777743
    Abstract: Memory cell architectures and methods of forming the same are provided. An example memory cell can include a switch element and a memory element. A middle electrode is formed between the memory element and the switch element. An outside electrode is formed adjacent the switch element or the memory element at a location other than between the memory element and the switch element. A lateral dimension of the middle electrode is different than a lateral dimension of the outside electrode.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: September 15, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Marcello Ravasio, Samuele Sciarrillo, Andrea Gotti
  • Publication number: 20200144329
    Abstract: Memory cell architectures and methods of forming the same are provided. An example memory cell can include a switch element and a memory element formed in series with the switch element. A smallest lateral dimension of the switch element is different than a smallest lateral dimension of the memory element.
    Type: Application
    Filed: January 7, 2020
    Publication date: May 7, 2020
    Inventors: Samuele Sciarrillo, Marcello Ravasio
  • Patent number: 10573689
    Abstract: Memory cell architectures and methods of forming the same are provided. An example memory cell can include a switch element and a memory element formed in series with the switch element. A smallest lateral dimension of the switch element is different than a smallest lateral dimension of the memory element.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: February 25, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Samuele Sciarrillo, Marcello Ravasio
  • Publication number: 20190355789
    Abstract: A method of fabricating a memory device is disclosed. In one aspect, the method comprises patterning a first conductive line extending in a first direction. The method additionally includes forming a free-standing pillar of a memory cell stack on the first conductive line after patterning the first conductive line. Forming the free-standing pillar includes depositing a memory cell stack comprising a selector material and a storage material over the conductive line and patterning the memory cell stack to form the free-standing pillar. The method further includes patterning a second conductive line on the pillar after patterning the memory cell stack, the second conductive line extending in a second direction crossing the first direction.
    Type: Application
    Filed: May 23, 2019
    Publication date: November 21, 2019
    Inventors: Ombretta Donghi, Marcello Ravasio, Samuele Sciarrillo, Roberto Somaschini
  • Patent number: 10367033
    Abstract: A method of fabricating a memory device is disclosed. In one aspect, the method comprises patterning a first conductive line extending in a first direction. The method additionally includes forming a free-standing pillar of a memory cell stack on the first conductive line after patterning the first conductive line. Forming the free-standing pillar includes depositing a memory cell stack comprising a selector material and a storage material over the conductive line and patterning the memory cell stack to form the free-standing pillar. The method further includes patterning a second conductive line on the pillar after patterning the memory cell stack, the second conductive line extending in a second direction crossing the first direction.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: July 30, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Ombretta Donghi, Marcello Ravasio, Samuele Sciarrillo, Roberto Somaschini
  • Publication number: 20190109176
    Abstract: Memory cell architectures and methods of forming the same are provided. An example memory cell can include a switch element and a memory element formed in series with the switch element. A smallest lateral dimension of the switch element is different than a smallest lateral dimension of the memory element.
    Type: Application
    Filed: December 7, 2018
    Publication date: April 11, 2019
    Inventors: Samuele Sciarrillo, Marcello Ravasio
  • Publication number: 20190067372
    Abstract: A method of fabricating a memory device is disclosed. In one aspect, the method comprises patterning a first conductive line extending in a first direction. The method additionally includes forming a free-standing pillar of a memory cell stack on the first conductive line after patterning the first conductive line. Forming the free-standing pillar includes depositing a memory cell stack comprising a selector material and a storage material over the conductive line and patterning the memory cell stack to form the free-standing pillar. The method further includes patterning a second conductive line on the pillar after patterning the memory cell stack, the second conductive line extending in a second direction crossing the first direction.
    Type: Application
    Filed: August 24, 2018
    Publication date: February 28, 2019
    Inventors: Ombretta Donghi, Marcello Ravasio, Samuele Sciarrillo, Roberto Somaschini
  • Patent number: 10163978
    Abstract: Memory cell architectures and methods of forming the same are provided. An example memory cell can include a switch element and a memory element formed in series with the switch element. A smallest lateral dimension of the switch element is different than a smallest lateral dimension of the memory element.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: December 25, 2018
    Assignee: Micron Technology, Inc.
    Inventors: Samuele Sciarrillo, Marcello Ravasio
  • Patent number: 10084016
    Abstract: A method of fabricating a memory device is disclosed. In one aspect, the method comprises patterning a first conductive line extending in a first direction. The method additionally includes forming a free-standing pillar of a memory cell stack on the first conductive line after patterning the first conductive line. Forming the free-standing pillar includes depositing a memory cell stack comprising a selector material and a storage material over the conductive line and patterning the memory cell stack to form the free-standing pillar. The method further includes patterning a second conductive line on the pillar after patterning the memory cell stack, the second conductive line extending in a second direction crossing the first direction.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: September 25, 2018
    Assignee: MICRON TECHNOLOGY, INC.
    Inventors: Ombretta Donghi, Marcello Ravasio, Samuele Sciarrillo, Roberto Somaschini
  • Publication number: 20180047896
    Abstract: Memory cell architectures and methods of forming the same are provided. An example memory cell can include a switch element and a memory element. A middle electrode is formed between the memory element and the switch element. An outside electrode is formed adjacent the switch element or the memory element at a location other than between the memory element and the switch element. A lateral dimension of the middle electrode is different than a lateral dimension of the outside electrode.
    Type: Application
    Filed: October 25, 2017
    Publication date: February 15, 2018
    Inventors: Marcello Ravasio, Samuele Sciarrillo, Andrea Gotti
  • Publication number: 20170365642
    Abstract: The disclosed technology relates generally to integrated circuit devices, and in particular to cross-point memory arrays and methods for fabricating the same. In one aspect, a method of fabricating cross-point memory arrays comprises forming a memory cell material stack which includes a first active material and a second active material over the first active material, wherein one of the first and second active materials comprises a storage material and the other of the first and second active materials comprises a selector material.
    Type: Application
    Filed: August 31, 2017
    Publication date: December 21, 2017
    Inventors: Marcello Ravasio, Samuele Sciarrillo, Fabio Pellizzer, Innocenzo Tortorelli, Roberto Somaschini, Cristina Casellato, Riccardo Mottadelli
  • Patent number: 9831428
    Abstract: Memory cell architectures and methods of forming the same are provided. An example memory cell can include a switch element and a memory element. A middle electrode is formed between the memory element and the switch element. An outside electrode is formed adjacent the switch element or the memory element at a location other than between the memory element and the switch element. A lateral dimension of the middle electrode is different than a lateral dimension of the outside electrode.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: November 28, 2017
    Assignee: Micron Technology, Inc.
    Inventors: Marcello Ravasio, Samuele Sciarrillo, Andrea Gotti
  • Patent number: 9806129
    Abstract: The disclosed technology relates generally to integrated circuit devices, and in particular to cross-point memory arrays and methods for fabricating the same. In one aspect, a method of fabricating cross-point memory arrays comprises forming a memory cell material stack which includes a first active material and a second active material over the first active material, wherein one of the first and second active materials comprises a storage material and the other of the first and second active materials comprises a selector material.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: October 31, 2017
    Assignee: MICRON TECHNOLOGY, INC.
    Inventors: Marcello Ravasio, Samuele Sciarrillo, Fabio Pellizzer, Innocenzo Tortorelli, Roberto Somaschini, Cristina Casellato, Riccardo Mottadelli
  • Patent number: 9773844
    Abstract: The present disclosure includes memory cell array structures and methods of forming the same. One such array includes a stack structure comprising a memory cell between a first conductive material and a second conductive material. The memory cell can include a select element and a memory element. The array can also include an electrically inactive stack structure located at an edge of the stack structure.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: September 26, 2017
    Assignee: Micron Technology, Inc.
    Inventors: Marcello Ravasio, Samuele Sciarrillo, Roberto Somaschini, Gabriel L. Donadio
  • Publication number: 20170207273
    Abstract: Memory cell architectures and methods of forming the same are provided. An example memory cell can include a switch element and a memory element formed in series with the switch element. A smallest lateral dimension of the switch element is different than a smallest lateral dimension of the memory element.
    Type: Application
    Filed: April 5, 2017
    Publication date: July 20, 2017
    Inventors: Samuele Sciarrillo, Marcello Ravasio