Patents by Inventor Yi-Fang Lee

Yi-Fang Lee 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: 20240149494
    Abstract: A method for silicon carbide ingot peeling includes the steps of: placing the silicon carbide ingot between first and second suckers; having a pressing head disposed on a top surface of the first sucker to apply mechanical oscillatory energy to both the silicon carbide ingot and the second sucker through the first sucker; and, having an elastic element disposed under the second sucker to absorb part of the mechanical oscillatory energy to transmit longitudinal waves thereof to a modified layer of the silicon carbide ingot for propagating individually intermittent invisible cracks at the modified layer to break silicon carbide chains at different levels. Till the cracks connect together for forming a continuous crack across the silicon carbide ingot, a top portion of the silicon carbide ingot is then separable therefrom to form a wafer. In addition, an apparatus for silicon carbide ingot peeling is also provided.
    Type: Application
    Filed: February 13, 2023
    Publication date: May 9, 2024
    Inventors: WENG-JUNG LU, YING-FANG CHANG, PIN-YAO LEE, YI-WEI LIN
  • Publication number: 20240074216
    Abstract: Some embodiments include an integrated assembly having a first semiconductor material between two regions of a second semiconductor material. The second semiconductor material is a different composition than the first semiconductor material. Hydrogen is diffused within the first and second semiconductor materials. The conductivity of the second semiconductor material increases in response to the hydrogen diffused therein to thereby create a structure having the second semiconductor material as source/drain regions, and having the first semiconductor material as a channel region between the source/drain regions. A transistor gate is adjacent the channel region and is configured to induce an electric field within the channel region. Some embodiments include methods of forming integrated assemblies.
    Type: Application
    Filed: November 8, 2023
    Publication date: February 29, 2024
    Applicant: Micron Technology, Inc.
    Inventors: Kamal M. Karda, Yi Fang Lee, Haitao Liu, Durai Vishak Nirmal Ramaswamy, Ramanathan Gandhi, Karthik Sarpatwari, Scott E. Sills, Sameer Chhajed
  • Patent number: 11864386
    Abstract: A memory array comprises vertically-alternating tiers of insulative material and memory cells. The memory cells individually comprise a transistor comprising first and second source/drain regions having a channel region there-between and a gate operatively proximate the channel region. The individual memory cells comprise a capacitor comprising first and second electrodes having a capacitor insulator there-between. The first electrode electrically couples to the first source/drain region. Wordline structures extend elevationally through the insulative material and the memory cells of the vertically-alternating tiers. Individual of the gates that are in different of the memory cell tiers directly electrically couple to individual of the wordline structures. Sense-lines electrically couple to multiple of the second source/drain regions of individual of the transistors. Other embodiments are disclosed.
    Type: Grant
    Filed: June 10, 2022
    Date of Patent: January 2, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Sanh D. Tang, Richard J. Hill, Yi Fang Lee, Martin C. Roberts
  • Patent number: 11848360
    Abstract: Some embodiments include an integrated assembly containing a first structure which includes one or more transition metals, and containing a second structure over the first structure. The second structure has a first region directly against the first structure and has a second region spaced from the first structure by a gap region. The second structure includes semiconductor material having at least one element selected from Group 13 of the periodic table in combination with at least one element selected from Groups 15 and 16 of the periodic table. An ionic compound is within the gap region. Some embodiments include a method of forming an integrated assembly.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: December 19, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Yoshitaka Nakamura, Devesh Dadhich Shreeram, Yi Fang Lee, Scott E. Sills, Jerome A. Imonigie, Kaustubh Shrimali
  • Patent number: 11832454
    Abstract: Some embodiments include an integrated assembly having a first semiconductor material between two regions of a second semiconductor material. The second semiconductor material is a different composition than the first semiconductor material. Hydrogen is diffused within the first and second semiconductor materials. The conductivity of the second semiconductor material increases in response to the hydrogen diffused therein to thereby create a structure having the second semiconductor material as source/drain regions, and having the first semiconductor material as a channel region between the source/drain regions. A transistor gate is adjacent the channel region and is configured to induce an electric field within the channel region. Some embodiments include methods of forming integrated assemblies.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: November 28, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Kamal M. Karda, Yi Fang Lee, Haitao Liu, Durai Vishak Nirmal Ramaswamy, Ramanathan Gandhi, Karthik Sarpatwari, Scott E. Sills, Sameer Chhajed
  • Patent number: 11658246
    Abstract: A device comprises a vertical transistor. The vertical transistor comprises a pillar structure, at least one gate electrode, and a dielectric material. The pillar structure comprises a source region, a drain region, and a channel region. The source region and the drain region each individually comprise at least one electrically conductive material configured to inhibit hydrogen permeation therethrough. The channel region comprises a semiconductive material vertically between the source region and the drain region. The at least one gate electrode laterally neighbors the channel region of the semiconductive structure. The dielectric material is laterally between the semiconductive structure and the at least one gate electrode. Additional devices, and related electronic systems and methods are also disclosed.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: May 23, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Kamal M. Karda, Ramanathan Gandhi, Yi Fang Lee, Haitao Liu, Durai Vishak Nirmal Ramaswamy, Scott E. Sills
  • Patent number: 11652108
    Abstract: Some embodiments include an integrated assembly which includes a base structure. The base structure includes a series of conductive structures which extend along a first direction. The conductive structures have steps which alternate with recessed regions along the first direction. Pillars of semiconductor material are over the steps. The semiconductor material includes at least one element selected from Group 13 of the periodic table in combination with at least one element selected from Group 16 of the periodic table. The semiconductor material may be semiconductor oxide in some applications. Some embodiments include methods of forming integrated assemblies.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: May 16, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Scott E. Sills, Yi Fang Lee, Kevin J. Torek
  • Patent number: 11637175
    Abstract: A vertical transistor comprises a top source/drain region, a bottom source/drain region, a channel region vertically between the top and bottom source/drain regions, and a gate operatively laterally-adjacent the channel region. The top source/drain region and the channel region have a top interface and the bottom source/drain region and the channel region have a bottom interface. The channel region is crystalline and has an average crystal grain size of its crystal grains that is less than 20 nanometers. The channel region at the top interface or at the bottom interface has greater horizontal texture than volume of the crystal grains in the channel region that is vertically between the crystal grains that are at the top and bottom interfaces. Other embodiments and aspects are disclosed.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: April 25, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Yi Fang Lee, Hung-Wei Liu, Ning Lu, Anish A. Khandekar, Jeffery B. Hull, Silvia Borsari
  • Patent number: 11626488
    Abstract: Some embodiments include a transistor having an active region containing semiconductor material. The semiconductor material includes at least one element selected from Group 13 of the periodic table in combination with at least one element selected from Group 16 of the periodic table. The active region has a first region, a third region offset from the first region, and a second region between the first and third regions. A gating structure is operatively adjacent to the second region. A first carrier-concentration-gradient is within the first region, and a second carrier-concentration-gradient is within the third region. Some embodiments include methods of forming integrated assemblies.
    Type: Grant
    Filed: November 4, 2021
    Date of Patent: April 11, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Srinivas Pulugurtha, Jaydip Guha, Scott E. Sills, Yi Fang Lee
  • Publication number: 20230081634
    Abstract: A transistor comprises a first conductive contact, a heterogeneous channel comprising at least one oxide semiconductor material over the first conductive contact, a second conductive contact over the heterogeneous channel, and a gate electrode laterally neighboring the heterogeneous channel. A device, a method of forming a device, a memory device, and an electronic system are also described.
    Type: Application
    Filed: October 27, 2022
    Publication date: March 16, 2023
    Inventors: Scott E. Sills, Ramanathan Gandhi, Durai Vishak Nirmal Ramaswamy, Yi Fang Lee, Kamal M. Karda
  • Patent number: 11563011
    Abstract: A method used in forming integrated circuitry comprises forming conductive material over a substrate. The conductive material is patterned into a conductive line that is horizontally longitudinally elongated. The conductive material is vertically recessed in longitudinally-spaced first regions of the conductive line to form longitudinally-spaced conductive pillars that individually are in individual longitudinally-spaced second regions that longitudinally-alternate with the longitudinally-spaced first regions along the conductive line. The conductive pillars project vertically relative to the conductive material in the longitudinally-spaced and vertically-recessed first regions of the conductive line. Electronic components are formed directly above the conductive pillars. Individual of the electronic components are directly electrically coupled to individual of the conductive pillars. Additional methods, including structure independent of method, are disclosed.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: January 24, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Vinay Nair, Silvia Borsari, Ryan L. Meyer, Russell A. Benson, Yi Fang Lee
  • Publication number: 20230014320
    Abstract: An array of vertical transistors comprises spaced pillars of individual vertical transistors that individually comprise an upper source/drain region, a lower source/drain region, and a channel region vertically there-between. The upper source/drain region comprises a conductor oxide material in individual of the pillars. The channel region comprises an oxide semiconductor material in the individual pillars. The lower source/drain region comprises a first conductive oxide material in the individual pillars atop and directly against a second conductive oxide material in the individual pillars. Horizontally-elongated and spaced conductor lines individually interconnect a respective multiple of the vertical transistors in a column direction. The conductor lines individually comprise the second conductive oxide material atop and directly against metal material. The first conductive oxide material, the second conductive oxide material, and the metal material comprise different compositions relative one another.
    Type: Application
    Filed: September 19, 2022
    Publication date: January 19, 2023
    Applicant: Micron Technology, Inc.
    Inventors: Yi Fang Lee, Jaydip Guha, Lars P. Heineck, Kamal M. Karda, Si-Woo Lee, Terrence B. McDaniel, Scott E. Sills, Kevin J. Torek, Sheng-Wei Yang
  • Publication number: 20220406899
    Abstract: Some embodiments include an integrated assembly containing a first structure which includes one or more transition metals, and containing a second structure over the first structure. The second structure has a first region directly against the first structure and has a second region spaced from the first structure by a gap region. The second structure includes semiconductor material having at least one element selected from Group 13 of the periodic table in combination with at least one element selected from Groups 15 and 16 of the periodic table. An ionic compound is within the gap region. Some embodiments include a method of forming an integrated assembly.
    Type: Application
    Filed: June 17, 2021
    Publication date: December 22, 2022
    Applicant: Micron Technology, Inc.
    Inventors: Yoshitaka Nakamura, Devesh Dadhich Shreeram, Yi Fang Lee, Scott E. Sills, Jerome A. Imonigie, Kaustubh Shrimali
  • Patent number: 11515417
    Abstract: A transistor comprises a first conductive contact, a heterogeneous channel comprising at least one oxide semiconductor material over the first conductive contact, a second conductive contact over the heterogeneous channel, and a gate electrode laterally neighboring the heterogeneous channel. A device, a method of forming a device, a memory device, and an electronic system are also described.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: November 29, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Scott E. Sills, Ramanathan Gandhi, Durai Vishak Nirmal Ramaswamy, Yi Fang Lee, Kamal M. Karda
  • Publication number: 20220351768
    Abstract: A semiconductor structure includes an electrode, a ferroelectric material adjacent the electrode, the ferroelectric material comprising an oxide of at least one of hafnium and zirconium, the ferroelectric material doped with bismuth, and another electrode adjacent the ferroelectric material on an opposite side thereof from the first electrode. Related semiconductor structures, memory cells, semiconductor devices, electronic systems, and related methods are disclosed.
    Type: Application
    Filed: July 12, 2022
    Publication date: November 3, 2022
    Inventors: Albert Liao, Wayne I. Kinney, Yi Fang Lee, Manzar Siddik
  • Patent number: 11488981
    Abstract: An array of vertical transistors comprises spaced pillars of individual vertical transistors that individually comprise an upper source/drain region, a lower source/drain region, and a channel region vertically there-between. The upper source/drain region comprises a conductor oxide material in individual of the pillars. The channel region comprises an oxide semiconductor material in the individual pillars. The lower source/drain region comprises a first conductive oxide material in the individual pillars atop and directly against a second conductive oxide material in the individual pillars. Horizontally-elongated and spaced conductor lines individually interconnect a respective multiple of the vertical transistors in a column direction. The conductor lines individually comprise the second conductive oxide material atop and directly against metal material. The first conductive oxide material, the second conductive oxide material, and the metal material comprise different compositions relative one another.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: November 1, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Yi Fang Lee, Jaydip Guha, Lars P. Heineck, Kamal M. Karda, Si-Woo Lee, Terrence B. McDaniel, Scott E. Sills, Kevin J. Torek, Sheng-Wei Yang
  • Publication number: 20220326784
    Abstract: The present invention discloses a method for outputting a command by detecting a movement of an object, which includes the following steps. First, an image capturing device captures images generated by the movement of the object at different timings by. Next, a motion trajectory is calculated according to the plurality of images. Further next, a corresponding command is outputted according to the motion trajectory. The present invention also provides a system which employs the above-mentioned method.
    Type: Application
    Filed: June 28, 2022
    Publication date: October 13, 2022
    Inventors: Yu-Hao Huang, Yi-Fang Lee, Ming-Tsan Kao, Nien-Tse Chen
  • Publication number: 20220320136
    Abstract: A memory array comprises vertically-alternating tiers of insulative material and memory cells. The memory cells individually comprise a transistor comprising first and second source/drain regions having a channel region there-between and a gate operatively proximate the channel region. The individual memory cells comprise a capacitor comprising first and second electrodes having a capacitor insulator there-between. The first electrode electrically couples to the first source/drain region. Wordline structures extend elevationally through the insulative material and the memory cells of the vertically-alternating tiers. Individual of the gates that are in different of the memory cell tiers directly electrically couple to individual of the wordline structures. Sense-lines electrically couple to multiple of the second source/drain regions of individual of the transistors. Other embodiments are disclosed.
    Type: Application
    Filed: June 10, 2022
    Publication date: October 6, 2022
    Applicant: Micron Technology, Inc.
    Inventors: Sanh D. Tang, Richard J. Hill, Yi Fang Lee, Martin C. Roberts
  • Patent number: 11404440
    Abstract: A memory array comprises vertically-alternating tiers of insulative material and memory cells. The memory cells individually comprise a transistor comprising first and second source/drain regions having a channel region there-between and a gate operatively proximate the channel region. The individual memory cells comprise a capacitor comprising first and second electrodes having a capacitor insulator there-between. The first electrode electrically couples to the first source/drain region. Wordline structures extend elevationally through the insulative material and the memory cells of the vertically-alternating tiers. Individual of the gates that are in different of the memory cell tiers directly electrically couple to individual of the wordline structures. Sense-lines electrically couple to multiple of the second source/drain regions of individual of the transistors. Other embodiments are disclosed.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: August 2, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Sanh D. Tang, Richard J. Hill, Yi Fang Lee, Martin C. Roberts
  • Patent number: 11402922
    Abstract: The present invention discloses a method for outputting a command by detecting a movement of an object, which includes the following steps. First, an image capturing device captures images generated by the movement of the object at different timings by. Next, a motion trajectory is calculated according to the plurality of images. Further next, a corresponding command is outputted according to the motion trajectory. The present invention also provides a system which employs the above-mentioned method.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: August 2, 2022
    Assignee: PIXART IMAGING INCORPORATION
    Inventors: Yu-Hao Huang, Yi-Fang Lee, Ming-Tsan Kao, Nien-Tse Chen