Patents by Inventor Kangle Li

Kangle Li 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: 20260068133
    Abstract: Implementations described herein relate to various structures, integrated assemblies, and memory devices. In some implementations, an integrated assembly includes an active area region having an upper portion and a lower portion, where a width of the lower portion is less than a width of the upper portion. The integrated assembly further includes a word line structure horizontally adjacent to the lower portion.
    Type: Application
    Filed: June 27, 2025
    Publication date: March 5, 2026
    Inventors: Babak TAHMOURESILERD, Sanjeev SAPRA, Vivek YADAV, Kangle LI, Toshiyasu FUJIMOTO, XiangYa SU, Po Yen HSU, Ping-Cheng HSU
  • Publication number: 20260068143
    Abstract: Implementations described herein relate to various structures, integrated assemblies, and memory devices. In some implementations, an integrated assembly includes a first elongated structure that includes a first series of active area segments alternating with dielectric segments. The integrated assembly includes a second elongated structure including a second series of active area segments alternating with dielectric segments. The integrated assembly includes a word line structure running lengthwise between the first elongated structure and the second elongated structure, wherein widths of the word line structure between the opposing active area segments are different than widths of the word line structure between the opposing dielectric segments.
    Type: Application
    Filed: June 27, 2025
    Publication date: March 5, 2026
    Inventors: Babak TAHMOURESILERD, Vivek YADAV, Kangle LI, Sanjeev SAPRA
  • Patent number: 12432943
    Abstract: Methods, apparatuses, and systems related to an over-sculpted storage node are described. An example method includes forming an opening in a pattern of materials. The method further includes performing an etch to over-sculpt the opening. The method further includes depositing a storage node material in the over-sculpted opening to form an over-sculpted storage node. The method further includes performing an etch to remove portions of the pattern of materials. The method further includes performing an etch on the storage node material to trim the over-sculpted storage node.
    Type: Grant
    Filed: September 14, 2022
    Date of Patent: September 30, 2025
    Assignee: Micron Technology, Inc.
    Inventors: Devesh Dadhich Shreeram, Sanjeev Sapra, Kangle Li, Sevim Korkmaz
  • Patent number: 12193208
    Abstract: A DRAM capacitor may include a first capacitor electrode, a capacitor dielectric adjacent to the first capacitor electrode, and a second capacitor electrode adjacent to the capacitor dielectric. The first capacitor electrode may include a lower portion, an upper portion, and a step transition between the lower portion and the upper portion, a width of the upper portion of the first capacitor electrode at the step transition is less than a width of the lower portion of the first capacitor electrode at the step transition. Semiconductor devices, systems, and methods are also disclosed.
    Type: Grant
    Filed: January 13, 2022
    Date of Patent: January 7, 2025
    Assignee: Micron Technology, Inc.
    Inventors: Devesh Dadhich Shreeram, Kangle Li, Matthew N. Rocklein, Wei Ching Huang, Ping-Cheng Hsu, Sevim Korkmaz, Sanjeev Sapra, An-Jen B. Cheng
  • Publication number: 20240088211
    Abstract: Methods, apparatuses, and systems related to an over-sculpted storage node are described. An example method includes forming an opening in a pattern of materials. The method further includes performing an etch to over-sculpt the opening. The method further includes depositing a storage node material in the over-sculpted opening to form an over-sculpted storage node. The method further includes performing an etch to remove portions of the pattern of materials. The method further includes performing an etch on the storage node material to trim the over-sculpted storage node.
    Type: Application
    Filed: September 14, 2022
    Publication date: March 14, 2024
    Inventors: Devesh Dadhich Shreeram, Sanjeev Sapra, Kangle Li, Sevim Korkmaz
  • Patent number: 11563008
    Abstract: Some embodiments include an integrated assembly having digit-line-contact-regions between pairs of capacitor-contact-regions. The capacitor-contact-regions are arranged with six adjacent capacitor-contact-regions in a substantially rectangular configuration. Conductive plugs are coupled with the capacitor-contact-regions. Conductive redistribution material is coupled with the conductive plugs. Upper surfaces of the conductive redistribution material are arranged in a substantially hexagonal-close-packed configuration. Digit lines are over the digit-line-contact-regions. Insulative regions are between the digit lines and the conductive plugs. The insulative regions contain voids and/or low-k dielectric material. Capacitors are coupled with the upper surfaces of the conductive redistribution material.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: January 24, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Guangjun Yang, Vinay Nair, Devesh Dadhich Shreeram, Ashwin Panday, Kangle Li, Zhiqiang Xie, Silvia Borsari, Mohd Kamran Akhtar, Si-Woo Lee
  • Publication number: 20220285357
    Abstract: Some embodiments include an integrated assembly having digit-line-contact-regions between pairs of capacitor-contact-regions. The capacitor-contact-regions are arranged with six adjacent capacitor-contact-regions in a substantially rectangular configuration. Conductive plugs are coupled with the capacitor-contact-regions. Conductive redistribution material is coupled with the conductive plugs. Upper surfaces of the conductive redistribution material are arranged in a substantially hexagonal-close-packed configuration. Digit lines are over the digit-line-contact-regions. Insulative regions are between the digit lines and the conductive plugs. The insulative regions contain voids and/or low-k dielectric material. Capacitors are coupled with the upper surfaces of the conductive redistribution material.
    Type: Application
    Filed: March 8, 2021
    Publication date: September 8, 2022
    Applicant: Micron Technology, Inc.
    Inventors: Guangjun Yang, Vinay Nair, Devesh Dadhich Shreeram, Ashwin Panday, Kangle Li, Zhiqiang Xie, Silvia Borsari, Mohd Kamran Akhtar, Si-Woo Lee
  • Publication number: 20220238532
    Abstract: A DRAM capacitor may include a first capacitor electrode, a capacitor dielectric adjacent to the first capacitor electrode, and a second capacitor electrode adjacent to the capacitor dielectric. The first capacitor electrode may include a lower portion, an upper portion, and a step transition between the lower portion and the upper portion, a width of the upper portion of the first capacitor electrode at the step transition is less than a width of the lower portion of the first capacitor electrode at the step transition. Semiconductor devices, systems, and methods are also disclosed.
    Type: Application
    Filed: January 13, 2022
    Publication date: July 28, 2022
    Inventors: Devesh Dadhich Shreeram, Kangle Li, Matthew N. Rocklein, Wei Ching Huang, Ping-Cheng Hsu, Sevim Korkmaz, Sanjeev Sapra, An-Jen B. Cheng
  • Patent number: 11322388
    Abstract: An example method includes patterning a working surface of a semiconductor wafer. The example method includes performing a first deposition of a dielectric material in high aspect ratio trenches. The example method further includes performing a high pressure, high temperature vapor etch to recess the dielectric material in the trenches and performing a second deposition of the dielectric material to continue filling the trenches.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: May 3, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Vivek Yadav, Shen Hu, Kangle Li, Sanjeev Sapra
  • Patent number: 11114443
    Abstract: Systems, apparatuses, and methods related to semiconductor structure formation are described. An example method may include patterning a working surface of a semiconductor wafer. The method may further include performing a vapor etch on a first dielectric material at the working surface to recess the first dielectric material to a first intended depth of an opening relative to the working surface and to expose a second dielectric material on a sidewall of the opening. The method may further include performing a wet etch on the second dielectric material to recess the second dielectric material to the intended depth.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: September 7, 2021
    Assignee: Micron Technology, Inc.
    Inventors: Vivek Yadav, Fatma Arzum Simsek-Ege, Sanjeev Sapra, Thomas A. Figura, Kangle Li
  • Publication number: 20210066307
    Abstract: Systems, apparatuses, and methods related to semiconductor structure formation are described. An example method may include patterning a working surface of a semiconductor wafer. The method may further include performing a vapor etch on a first dielectric material at the working surface to recess the first dielectric material to a first intended depth of an opening relative to the working surface and to expose a second dielectric material on a sidewall of the opening. The method may further include performing a wet etch on the second dielectric material to recess the second dielectric material to the intended depth.
    Type: Application
    Filed: August 29, 2019
    Publication date: March 4, 2021
    Inventors: Vivek Yadav, Fatma Arzum Simsek-Ege, Sanjeev Sapra, Thomas A. Figura, Kangle Li
  • Publication number: 20210057266
    Abstract: An example method includes patterning a working surface of a semiconductor wafer. The example method includes performing a first deposition of a dielectric material in high aspect ratio trenches. The example method further includes performing a high pressure, high temperature vapor etch to recess the dielectric material in the trenches and performing a second deposition of the dielectric material to continue filling the trenches.
    Type: Application
    Filed: August 23, 2019
    Publication date: February 25, 2021
    Inventors: Vivek Yadav, Shen Hu, Kangle Li, Sanjeev Sapra