Patents by Inventor David H. Wells

David H. Wells 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: 10504773
    Abstract: Some embodiments include methods of forming voids within semiconductor constructions. In some embodiments the voids may be utilized as microstructures for distributing coolant, for guiding electromagnetic radiation, or for separation and/or characterization of materials. Some embodiments include constructions having micro-structures therein which correspond to voids, conduits, insulative structures, semiconductor structures or conductive structures.
    Type: Grant
    Filed: August 27, 2017
    Date of Patent: December 10, 2019
    Assignee: Micron Technology, Inc.
    Inventor: David H. Wells
  • Publication number: 20190371649
    Abstract: Some embodiments include methods of forming voids within semiconductor constructions. In some embodiments the voids may be utilized as microstructures for distributing coolant, for guiding electromagnetic radiation, or for separation and/or characterization of materials. Some embodiments include constructions having micro-structures therein which correspond to voids, conduits, insulative structures, semiconductor structures or conductive structures.
    Type: Application
    Filed: August 14, 2019
    Publication date: December 5, 2019
    Applicant: Micron Technology, Inc.
    Inventor: David H. Wells
  • Publication number: 20190371648
    Abstract: Some embodiments include methods of forming voids within semiconductor constructions. In some embodiments the voids may be utilized as microstructures for distributing coolant, for guiding electromagnetic radiation, or for separation and/or characterization of materials. Some embodiments include constructions having micro-structures therein which correspond to voids, conduits, insulative structures, semiconductor structures or conductive structures.
    Type: Application
    Filed: August 14, 2019
    Publication date: December 5, 2019
    Applicant: Micron Technology, Inc.
    Inventor: David H. Wells
  • Patent number: 10438839
    Abstract: Some embodiments include methods of forming voids within semiconductor constructions. In some embodiments the voids may be utilized as microstructures for distributing coolant, for guiding electromagnetic radiation, or for separation and/or characterization of materials. Some embodiments include constructions having micro-structures therein which correspond to voids, conduits, insulative structures, semiconductor structures or conductive structures.
    Type: Grant
    Filed: August 27, 2017
    Date of Patent: October 8, 2019
    Assignee: Micron Technology, Inc.
    Inventor: David H. Wells
  • Patent number: 10438840
    Abstract: Some embodiments include methods of forming voids within semiconductor constructions. In some embodiments the voids may be utilized as microstructures for distributing coolant, for guiding electromagnetic radiation, or for separation and/or characterization of materials. Some embodiments include constructions having micro-structures therein which correspond to voids, conduits, insulative structures, semiconductor structures or conductive structures.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: October 8, 2019
    Assignee: Micron Technology, Inc.
    Inventor: David H. Wells
  • Publication number: 20190267394
    Abstract: A transistor comprises channel material having first and second opposing sides. A gate is on the first side of the channel material and a gate insulator is between the gate and the channel material. A first insulating material has first and second opposing sides, with the first side being adjacent the second side of the channel material. A second insulating material of different composition from that of the first insulating material is adjacent the second side of the first insulating material. The second insulating material has at least one of (a), (b), and (c), where, (a): lower oxygen diffusivity than the first material, (b): net positive charge, and (c): at least two times greater shear strength than the first material. In some embodiments, an array of elevationally-extending strings of memory cells comprises such transistors. Other embodiments, including method, are disclosed.
    Type: Application
    Filed: May 8, 2019
    Publication date: August 29, 2019
    Applicant: Micron Technology, Inc.
    Inventors: David H. Wells, Luan C. Tran, Jie Li, Anish A. Khandekar, Kunal Shrotri
  • Patent number: 10396281
    Abstract: Methods of forming arrays of small, densely spaced holes or pillars for use in integrated circuits are disclosed. Various pattern transfer and etching steps can be used, in combination with pitch-reduction techniques, to create densely-packed features. Conventional photolithography steps can be used in combination with pitch-reduction techniques to form superimposed patterns of crossing elongate features with pillars at the intersections. Spacers are simultaneously applied to sidewalls of both sets of crossing lines to produce a pitch-doubled grid pattern. The pillars facilitate rows of spacers bridging columns of spacers.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: August 27, 2019
    Assignee: Micron Technology, Inc.
    Inventor: David H. Wells
  • Publication number: 20190198320
    Abstract: A transistor comprises channel material having first and second opposing sides. A gate is on the first side of the channel material and a gate insulator is between the gate and the channel material. A first insulating material has first and second opposing sides, with the first side being adjacent the second side of the channel material. A second insulating material of different composition from that of the first insulating material is adjacent the second side of the first insulating material. The second insulating material has at least one of (a), (b), and (c), where, (a): lower oxygen diffusivity than the first material, (b): net positive charge, and (c): at least two times greater shear strength than the first material. In some embodiments, an array of elevationally-extending strings of memory cells comprises such transistors. Other embodiments, including method, are disclosed.
    Type: Application
    Filed: February 23, 2018
    Publication date: June 27, 2019
    Applicant: Micron Technology, Inc.
    Inventors: David H. Wells, Anish A. Khandekar, Kunal Shrotri, Jie Li
  • Patent number: 10304724
    Abstract: Some embodiments include methods of forming voids within semiconductor constructions. In some embodiments the voids may be utilized as microstructures for distributing coolant, for guiding electromagnetic radiation, or for separation and/or characterization of materials. Some embodiments include constructions having micro-structures therein which correspond to voids, conduits, insulative structures, semiconductor structures or conductive structures.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: May 28, 2019
    Assignee: Micron Technology, Inc.
    Inventor: David H. Wells
  • Patent number: 10297611
    Abstract: A transistor comprises channel material having first and second opposing sides. A gate is on the first side of the channel material and a gate insulator is between the gate and the channel material. A first insulating material has first and second opposing sides, with the first side being adjacent the second side of the channel material. A second insulating material of different composition from that of the first insulating material is adjacent the second side of the first insulating material. The second insulating material has at least one of (a), (b), and (c), where, (a): lower oxygen diffusivity than the first material, (b): net positive charge, and (c): at least two times greater shear strength than the first material. In some embodiments, an array of elevationally-extending strings of memory cells comprises such transistors. Other embodiments, including method, are disclosed.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: May 21, 2019
    Assignee: Micron Technology, Inc.
    Inventors: David H. Wells, Luan C. Tran, Jie Li, Anish A. Khandekar, Kunal Shrotri
  • Publication number: 20190088532
    Abstract: Some embodiments include methods of forming voids within semiconductor constructions. In some embodiments the voids may be utilized as microstructures for distributing coolant, for guiding electromagnetic radiation, or for separation and/or characterization of materials. Some embodiments include constructions having micro-structures therein which correspond to voids, conduits, insulative structures, semiconductor structures or conductive structures.
    Type: Application
    Filed: November 7, 2018
    Publication date: March 21, 2019
    Applicant: Micron Technology, Inc.
    Inventor: David H. Wells
  • Publication number: 20190035462
    Abstract: Memory devices provide a plurality of memory cells, each memory cell including a memory element and a selection device. A plurality of first (e.g., row) address lines can be adjacent (e.g., under) a first side of at least some cells of the plurality. A plurality of second (e.g., column) address lines extend across the plurality of row address lines, each column address line being adjacent (e.g., over) a second, opposing side of at least some of the cells. Control circuitry can be configured to selectively apply a read voltage or a write voltage substantially simultaneously to the address lines. Systems including such memory devices and methods of accessing a plurality of cells at least substantially simultaneously are also provided.
    Type: Application
    Filed: October 1, 2018
    Publication date: January 31, 2019
    Inventors: David H. Wells, Jun Liu
  • Publication number: 20190019948
    Abstract: A three-dimensional variable resistance memory array and method of forming the same. The memory array has memory cells in multiple planes in three dimensions. The planes of the memory cells include shared interconnect lines, dually connected to driving and sensing circuits, that are used for addressing the cells for programming and reading. The memory array is formed using only a single patterned mask per central array plane to form the memory cells of such planes.
    Type: Application
    Filed: September 7, 2018
    Publication date: January 17, 2019
    Inventor: David H. Wells
  • Publication number: 20190006420
    Abstract: The present disclosure includes select devices and methods of using select device for memory cell applications. An example select device includes a first electrode having a particular geometry, a semiconductor material formed on the first electrode and a second electrode having the particular geometry with formed on the semiconductor material, wherein the select device is configured to snap between resistive states in response to signals that are applied to the select device.
    Type: Application
    Filed: September 6, 2018
    Publication date: January 3, 2019
    Inventors: David H. Wells, Christopher D. Cardon, Caner Onal
  • Patent number: 10163685
    Abstract: Some embodiments include methods of forming voids within semiconductor constructions. In some embodiments the voids may be utilized as microstructures for distributing coolant, for guiding electromagnetic radiation, or for separation and/or characterization of materials. Some embodiments include constructions having micro-structures therein which correspond to voids, conduits, insulative structures, semiconductor structures or conductive structures.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: December 25, 2018
    Assignee: Micron Technology, Inc.
    Inventor: David H. Wells
  • Patent number: 10153197
    Abstract: Some embodiments include methods of forming voids within semiconductor constructions. In some embodiments the voids may be utilized as microstructures for distributing coolant, for guiding electromagnetic radiation, or for separation and/or characterization of materials. Some embodiments include constructions having micro-structures therein which correspond to voids, conduits, insulative structures, semiconductor structures or conductive structures.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: December 11, 2018
    Assignee: Micron Technology, Inc.
    Inventor: David H. Wells
  • Patent number: 10109677
    Abstract: The present disclosure includes select devices and methods of using select device for memory cell applications. An example select device includes a first electrode having a particular geometry, a semiconductor material formed on the first electrode and a second electrode having the particular geometry with formed on the semiconductor material, wherein the select device is configured to snap between resistive states in response to signals that are applied to the select device.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: October 23, 2018
    Assignee: Micron Technology, Inc.
    Inventors: David H. Wells, Christopher D. Cardon, Caner Onal
  • Publication number: 20180301370
    Abstract: Some embodiments include methods of forming voids within semiconductor constructions. In some embodiments the voids may be utilized as microstructures for distributing coolant, for guiding electromagnetic radiation, or for separation and/or characterization of materials. Some embodiments include constructions having micro-structures therein which correspond to voids, conduits, insulative structures, semiconductor structures or conductive structures.
    Type: Application
    Filed: June 25, 2018
    Publication date: October 18, 2018
    Applicant: Micron Technology, Inc.
    Inventor: David H. Wells
  • Patent number: 10090048
    Abstract: Memory devices provide a plurality of memory cells, each memory cell including a memory element and a selection device. A plurality of first (e.g., row) address lines can be adjacent (e.g., under) a first side of at least some cells of the plurality. A plurality of second (e.g., column) address lines extend across the plurality of row address lines, each column address line being adjacent (e.g., over) a second, opposing side of at least some of the cells. Control circuitry can be configured to selectively apply a read voltage or a write voltage substantially simultaneously to the address lines. Systems including such memory devices and methods of accessing a plurality of cells at least substantially simultaneously are also provided.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: October 2, 2018
    Assignee: Ovonyx Memory Technology, LLC
    Inventors: David H. Wells, Jun Liu
  • Patent number: 10084129
    Abstract: A three-dimensional variable resistance memory array and method of forming the same. The memory array has memory cells in multiple planes in three dimensions. The planes of the memory cells include shared interconnect lines, dually connected to driving and sensing circuits, that are used for addressing the cells for programming and reading. The memory array is formed using only a single patterned mask per central array plane to form the memory cells of such planes.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: September 25, 2018
    Assignee: MICRON TECHNOLOGY, INC
    Inventor: David H. Wells