Patents by Inventor Christopher A. Larsen

Christopher A. Larsen 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: 10665469
    Abstract: A method used in forming an array of elevationally-extending strings of memory cells comprises forming a stack comprising vertically-alternating insulative tiers and wordline tiers. The stack comprises an etch-stop tier between a first tier and a second tier of the stack. The etch-stop tier is of different composition from those of the insulative tiers and the wordline tiers. Etching is conducted into the insulative tiers and the wordline tiers that are above the etch-stop tier to the etch-stop tier to form channel openings that have individual bases comprising the etch-stop tier. The etch-stop tier is penetrated through to extend individual of the channel openings there-through. After extending the individual channel openings through the etch-stop tier, etching is conducted into and through the insulative tiers and the wordline tiers that are below the etch-stop tier to extend the individual channel openings deeper into the stack below the etch-stop tier.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: May 26, 2020
    Assignee: Micron Technology, Inc.
    Inventors: John D. Hopkins, Gordon A. Haller, Tom J. John, Anish A. Khandekar, Christopher Larsen, Kunal Shrotri
  • Patent number: 10658382
    Abstract: An elevationally-extending string of memory cells comprises an upper stack elevationally over a lower stack. The upper and lower stacks individually comprise vertically-alternating tiers comprising control gate material of individual charge storage field effect transistors vertically alternating with insulating material. An upper stack channel pillar extends through multiple of the vertically-alternating tiers in the upper stack and a lower stack channel pillar extends through multiple of the vertically-alternating tiers in the lower stack. Tunnel insulator, charge storage material, and control gate blocking insulator is laterally between the respective upper and lower stack channel pillars and the control gate material. A conductive interconnect comprising conductively-doped semiconductor material is elevationally between and electrically couples the upper and lower stack channel pillars together. The conductively-doped semiconductor material comprises a first conductivity-producing dopant.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: May 19, 2020
    Assignee: Micron Technology, Inc.
    Inventors: John D. Hopkins, David Daycock, Yushi Hu, Christopher Larsen, Dimitrios Pavlopoulos
  • Publication number: 20200083059
    Abstract: A method used in forming an array of elevationally-extending strings of memory cells comprises forming a stack comprising vertically-alternating insulative tiers and wordline tiers. The stack comprises an etch-stop tier between a first tier and a second tier of the stack. The etch-stop tier is of different composition from those of the insulative tiers and the wordline tiers. Etching is conducted into the insulative tiers and the wordline tiers that are above the etch-stop tier to the etch-stop tier to form channel openings that have individual bases comprising the etch-stop tier. The etch-stop tier is penetrated through to extend individual of the channel openings there-through. After extending the individual channel openings through the etch-stop tier, etching is conducted into and through the insulative tiers and the wordline tiers that are below the etch-stop tier to extend the individual channel openings deeper into the stack below the etch-stop tier.
    Type: Application
    Filed: September 11, 2018
    Publication date: March 12, 2020
    Applicant: Micron Technology, Inc.
    Inventors: John D. Hopkins, Gordon A. Haller, Tom J. John, Anish A. Khandekar, Christopher Larsen, Kunal Shrotri
  • Patent number: 10541252
    Abstract: Some embodiments include a memory array which has a vertical stack of alternating insulative levels and wordline levels. The wordline levels have terminal ends corresponding to control gate regions. Charge-trapping material is along the control gate regions of the wordline levels and not along the insulative levels. The charge-trapping material is spaced from the control gate regions by charge-blocking material. Channel material extends vertically along the stack and is laterally spaced from the charge-trapping material by dielectric material. Some embodiments include methods of forming NAND memory arrays.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: January 21, 2020
    Assignee: Micron Technology, Inc.
    Inventors: David Daycock, Richard J. Hill, Christopher Larsen, Woohee Kim, Justin B. Dorhout, Brett D. Lowe, John D. Hopkins, Qian Tao, Barbara L. Casey
  • Publication number: 20190267396
    Abstract: Some embodiments include a memory array which has a vertical stack of alternating insulative levels and wordline levels. The wordline levels have terminal ends corresponding to control gate regions. Charge-trapping material is along the control gate regions of the wordline levels and not along the insulative levels. The charge-trapping material is spaced from the control gate regions by charge-blocking material. Channel material extends vertically along the stack and is laterally spaced from the charge-trapping material by dielectric material. Some embodiments include methods of forming NAND memory arrays.
    Type: Application
    Filed: May 13, 2019
    Publication date: August 29, 2019
    Applicant: Micron Technology, Inc.
    Inventors: David Daycock, Richard J. Hill, Christopher Larsen, Woohee Kim, Justin B. Dorhout, Brett D. Lowe, John D. Hopkins, Qian Tao, Barbara L. Casey
  • Publication number: 20190244972
    Abstract: An elevationally-extending string of memory cells comprises an upper stack elevationally over a lower stack. The upper and lower stacks individually comprise vertically-alternating tiers comprising control gate material of individual charge storage field effect transistors vertically alternating with insulating material. An upper stack channel pillar extends through multiple of the vertically-alternating tiers in the upper stack and a lower stack channel pillar extends through multiple of the vertically-alternating tiers in the lower stack. Tunnel insulator, charge storage material, and control gate blocking insulator is laterally between the respective upper and lower stack channel pillars and the control gate material. A conductive interconnect comprising conductively-doped semiconductor material is elevationally between and electrically couples the upper and lower stack channel pillars together. The conductively-doped semiconductor material comprises a first conductivity-producing dopant.
    Type: Application
    Filed: April 17, 2019
    Publication date: August 8, 2019
    Applicant: Micron Technology, Inc.
    Inventors: John D. Hopkins, David Daycock, Yushi Hu, Christopher Larsen, Dimitrios Pavlopoulos
  • Patent number: 10304853
    Abstract: Some embodiments include a memory array which has a vertical stack of alternating insulative levels and wordline levels. The wordline levels have terminal ends corresponding to control gate regions. Charge-trapping material is along the control gate regions of the wordline levels and not along the insulative levels. The charge-trapping material is spaced from the control gate regions by charge-blocking material. Channel material extends vertically along the stack and is laterally spaced from the charge-trapping material by dielectric material. Some embodiments include methods of forming NAND memory arrays.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: May 28, 2019
    Assignee: Micron Technology, Inc.
    Inventors: David Daycock, Richard J. Hill, Christopher Larsen, Woohee Kim, Justin B. Dorhout, Brett D. Lowe, John D. Hopkins, Qian Tao, Barbara L. Casey
  • Patent number: 10283520
    Abstract: An elevationally-extending string of memory cells comprises an upper stack elevationally over a lower stack. The upper and lower stacks individually comprise vertically-alternating tiers comprising control gate material of individual charge storage field effect transistors vertically alternating with insulating material. An upper stack channel pillar extends through multiple of the vertically-alternating tiers in the upper stack and a lower stack channel pillar extends through multiple of the vertically-alternating tiers in the lower stack. Tunnel insulator, charge storage material, and control gate blocking insulator is laterally between the respective upper and lower stack channel pillars and the control gate material. A conductive interconnect comprising conductively-doped semiconductor material is elevationally between and electrically couples the upper and lower stack channel pillars together. The conductively-doped semiconductor material comprises a first conductivity-producing dopant.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: May 7, 2019
    Assignee: Micron Technology, Inc.
    Inventors: John D. Hopkins, David Daycock, Yushi Hu, Christopher Larsen, Dimitrios Pavlopoulos
  • Publication number: 20180323212
    Abstract: Some embodiments include a memory array which has a vertical stack of alternating insulative levels and wordline levels. The wordline levels have terminal ends corresponding to control gate regions. Charge-trapping material is along the control gate regions of the wordline levels and not along the insulative levels. The charge-trapping material is spaced from the control gate regions by charge-blocking material. Channel material extends vertically along the stack and is laterally spaced from the charge-trapping material by dielectric material. Some embodiments include methods of forming NAND memory arrays.
    Type: Application
    Filed: July 10, 2018
    Publication date: November 8, 2018
    Applicant: Micron Technology, Inc.
    Inventors: David Daycock, Richard J. Hill, Christopher Larsen, Woohee Kim, Justin B. Dorhout, Brett D. Lowe, John D. Hopkins, Qian Tao, Barbara L. Casey
  • Patent number: 10083981
    Abstract: Some embodiments include a memory array which has a vertical stack of alternating insulative levels and wordline levels. The wordline levels have terminal ends corresponding to control gate regions. Charge-trapping material is along the control gate regions of the wordline levels and not along the insulative levels. The charge-trapping material is spaced from the control gate regions by charge-blocking material. Channel material extends vertically along the stack and is laterally spaced from the charge-trapping material by dielectric material. Some embodiments include methods of forming NAND memory arrays.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: September 25, 2018
    Assignee: Micron Technology, Inc.
    Inventors: David Daycock, Richard J. Hill, Christopher Larsen, Woohee Kim, Justin B. Dorhout, Brett D. Lowe, John D. Hopkins, Qian Tao, Barbara L. Casey
  • Patent number: 10074256
    Abstract: Embodiments of the disclosure include systems and methods for detection of background and foreground radiances captured by a multispectral imaging device. In some embodiments, a multispectral imaging device may generate a plurality of images of the same field of view, wherein the images may be captured at a variety of wavelengths. These images may be processed to identify any incidents, such as fire and/or gas leaks, within the field of view of the imaging device.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: September 11, 2018
    Assignee: Honeywell International Inc.
    Inventors: Kwong Wing Au, Christopher Larsen
  • Publication number: 20180219021
    Abstract: Some embodiments include a memory array which has a vertical stack of alternating insulative levels and wordline levels. The wordline levels have terminal ends corresponding to control gate regions. Charge-trapping material is along the control gate regions of the wordline levels and not along the insulative levels. The charge-trapping material is spaced from the control gate regions by charge-blocking material. Channel material extends vertically along the stack and is laterally spaced from the charge-trapping material by dielectric material. Some embodiments include methods of forming NAND memory arrays.
    Type: Application
    Filed: February 1, 2017
    Publication date: August 2, 2018
    Inventors: David Daycock, Richard J. Hill, Christopher Larsen, Woohee Kim, Justin B. Dorhout, Brett D. Lowe, John D. Hopkins, Qian Tao, Barbara L. Casey
  • Publication number: 20180125515
    Abstract: A device for dilating an ostium of a paranasal sinus of a human or animal subject may include: a handle; an elongate shaft having a proximal end coupled with the handle and extending to a distal end; a guidewire disposed through at least a portion of the shaft lumen; a dilator having a non-expanded configuration and an expanded configuration; and a slide member coupled with at least one of the guidewire or the dilator through the longitudinal opening of the shaft for advancing the guidewire and/or the dilator relative to the shaft.
    Type: Application
    Filed: November 16, 2017
    Publication date: May 10, 2018
    Inventors: Thomas R. Jenkins, Eric Goldfarb, Tom Thanh Vo, Joshua Makower, Robert N. Wood, Ronda M. Heiser, Christopher Larsen, Daniel T. Harfe
  • Publication number: 20180019255
    Abstract: An elevationally-extending string of memory cells comprises an upper stack elevationally over a lower stack. The upper and lower stacks individually comprise vertically-alternating tiers comprising control gate material of individual charge storage field effect transistors vertically alternating with insulating material. An upper stack channel pillar extends through multiple of the vertically-alternating tiers in the upper stack and a lower stack channel pillar extends through multiple of the vertically-alternating tiers in the lower stack. Tunnel insulator, charge storage material, and control gate blocking insulator is laterally between the respective upper and lower stack channel pillars and the control gate material. A conductive interconnect comprising conductively-doped semiconductor material is elevationally between and electrically couples the upper and lower stack channel pillars together. The conductively-doped semiconductor material comprises a first conductivity-producing dopant.
    Type: Application
    Filed: July 12, 2016
    Publication date: January 18, 2018
    Inventors: John D. Hopkins, David Daycock, Yushi Hu, Christopher Larsen, Dimitrios Pavlopoulos
  • Publication number: 20170358190
    Abstract: Embodiments of the disclosure include systems and methods for detection of background and foreground radiances captured by a multispectral imaging device. In some embodiments, a multispectral imaging device may generate a plurality of images of the same field of view, wherein the images may be captured at a variety of wavelengths. These images may be processed to identify any incidents, such as fire and/or gas leaks, within the field of view of the imaging device.
    Type: Application
    Filed: December 10, 2015
    Publication date: December 14, 2017
    Inventors: Kwong Wing Au, Christopher Larsen
  • Patent number: 9826999
    Abstract: A device for dilating an ostium of a paranasal sinus of a human or animal subject may include: a handle; an elongate shaft having a proximal end coupled with the handle and extending to a distal end; a guidewire disposed through at least a portion of the shaft lumen; a dilator having a non-expanded configuration and an expanded configuration; and a slide member coupled with at least one of the guidewire or the dilator through the longitudinal opening of the shaft for advancing the guidewire and/or the dilator relative to the shaft.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: November 28, 2017
    Assignee: Acclarent, Inc.
    Inventors: Thomas R. Jenkins, Eric Goldfarb, Tom Thanh Vo, Joshua Makower, Robert N. Wood, Ronda M. Heiser, Christopher Larsen, Daniel T. Harfe
  • Patent number: 9717447
    Abstract: A device includes a first sensor coupler that is configured to receive a first input signal from a first sensor. The first input signal corresponds to a first physiological parameter and is based on optical excitation of a tissue. The device includes a processor coupled to the first sensor coupler. The processor is configured to generate an output signal based on the first input signal. The first physiological parameter is encoded in the output signal. The output signal differs from the first input signal. The device includes an output coupler configured to communicate the output signal to a remote device.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: August 1, 2017
    Assignee: Nonin Medical, Inc.
    Inventors: Christopher Larsen, Timothy L. Johnson, Scott Everett Blomberg, Charles U. Smith, Jayant Parthasarathy
  • Publication number: 20170138603
    Abstract: A burner assembly for a cooking hob includes a gas burner portion having a lower housing and a burner housing assembled with and supported by the lower housing. The burner housing defines a gas distribution path open at least on an outer surface of the burner housing through a plurality of outlets. A central region of the gas burner portion is defined by an opening within the burner housing and is at least partially enclosed beneath the gas burner portion by the lower housing. The burner assembly further includes a first electric heating element disposed beneath a portion of the lower housing within the central region of the gas burner portion.
    Type: Application
    Filed: November 17, 2015
    Publication date: May 18, 2017
    Applicant: WHIRLPOOL CORPORATION
    Inventor: Christopher A. Larsen
  • Patent number: 9250135
    Abstract: A system for detecting a flame. The system may discriminate between a detected hot object and flame. The system may be a camera-like structure incorporating an infrared sensor, a lens, and an element that could filter out some of the long-wave infrared radiation. The sensor may receive radiation of a scene which forms images on the sensor. The images may be provided to a processor that incorporates one or more modules to determine whether a flame is present in the scene.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: February 2, 2016
    Assignee: Honeywell International Inc.
    Inventors: Barrett E. Cole, James Allen Cox, Kwong Au, Christopher Larsen
  • Patent number: 9082714
    Abstract: Embodiments of the present disclosure are directed towards use of an etch process post wordline definition to improve data retention in a flash memory device. In one embodiment, a method includes forming a plurality of wordline structures on a substrate, wherein individual wordline structures of the plurality of wordline structures include a control gate having an electrically conductive material and a cap having an electrically insulative material formed on the control gate, depositing an electrically insulative material to form a liner on a surface of the individual wordline structures, and etching the liner to remove at least a portion of the liner. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: July 14, 2015
    Assignee: Intel Corporation
    Inventors: Randy J. Koval, Max F. Hineman, Ronald A. Weimer, Vinayak K. Shamanna, Thomas M. Graettinger, William R. Kueber, Christopher Larsen, Alex J. Schrinsky