Patents by Inventor Chan Lim

Chan Lim 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: 11114173
    Abstract: Provided herein may be a semiconductor memory device and a method of operating the same. The semiconductor memory device may include peripheral circuits configured to perform a verify operation on selected memory cells by applying a verify voltage to a word line, and perform a compensation program operation on the selected memory cells by applying a compensation program voltage to the word line; and a control logic configured to control the peripheral circuits such that the compensation program operation is performed by applying the compensation program voltage to the selected memory cells to be programmed to a selected threshold voltage distribution among the threshold voltage distributions other than a highest threshold voltage distribution, wherein the compensation program voltage has a positive voltage lower than the main program voltage most recently applied to the word line.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: September 7, 2021
    Assignee: SK hynix inc.
    Inventors: Hye Lyoung Lee, Bong Hoon Lee, Chan Lim
  • Patent number: 10847226
    Abstract: A semiconductor device includes a memory string coupled between a common source line and a bit line, the memory string including at least one first selection transistor, a plurality of memory cells, and a plurality of second selection transistors. The semiconductor device also includes selection lines respectively coupled to the second selection transistors. The semiconductor device further includes a control logic circuit configured to float a first group of selection lines from among the selection lines at a first time and configured to float a second group of selection lines from among the selection lines at a second time different from the first time.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: November 24, 2020
    Assignee: SK hynix Inc.
    Inventors: Yong Jun Kim, Gae Hun Lee, Hea Jong Yang, Chan Lim, Min Kyu Jeong
  • Publication number: 20190348121
    Abstract: A semiconductor device includes a memory string coupled between a common source line and a bit line, the memory string including at least one first selection transistor, a plurality of memory cells, and a plurality of second selection transistors. The semiconductor device also includes selection lines respectively coupled to the second selection transistors. The semiconductor device further includes a control logic circuit configured to float a first group of selection lines from among the selection lines at a first time and configured to float a second group of selection lines from among the selection lines at a second time different from the first time.
    Type: Application
    Filed: December 13, 2018
    Publication date: November 14, 2019
    Applicant: SK hynix Inc.
    Inventors: Yong Jun KIM, Gae Hun LEE, Hea Jong YANG, Chan LIM, Min Kyu JEONG
  • Publication number: 20190333593
    Abstract: Provided herein may be a semiconductor memory device and a method of operating the same. The semiconductor memory device may include peripheral circuits configured to perform a verify operation on selected memory cells by applying a verify voltage to a word line, and perform a compensation program operation on the selected memory cells by applying a compensation program voltage to the word line; and a control logic configured to control the peripheral circuits such that the compensation program operation is performed by applying the compensation program voltage to the selected memory cells to be programmed to a selected threshold voltage distribution among the threshold voltage distributions other than a highest threshold voltage distribution, wherein the compensation program voltage has a positive voltage lower than the main program voltage most recently applied to the word line.
    Type: Application
    Filed: July 12, 2019
    Publication date: October 31, 2019
    Applicant: SK hynix Inc.
    Inventors: Hye Lyoung LEE, Bong Hoon LEE, Chan LIM
  • Patent number: 10453673
    Abstract: Methods of removing metal from a portion of a substrate include exposing the substrate to a reducing environment comprising at least one reducing agent and at least one oxidizing agent, determining whether metal remaining on the portion of the substrate is less than or equal to a particular level, and exposing the substrate to an oxidizing environment comprising at least one oxidizing agent and at least one reducing agent if the metal remaining on the portion of the substrate is deemed to be greater than the particular level.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: October 22, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Brian Dolan, Robert J. Hanson, Chan Lim
  • Patent number: 10403367
    Abstract: Provided herein may be a semiconductor memory device and a method of operating the same. The semiconductor memory device may include a plurality of pages each including a plurality of memory cells, peripheral circuits configured to perform a program operation of a selected page among the plurality of pages and a control logic configured to control the peripheral circuits such that a main program operation is performed on the selected page and, when the main program operation is completed, a compensation program operation is performed on memory cells having lower threshold voltage retention characteristics compared to remaining memory cells, among the memory cells included in the selected page.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: September 3, 2019
    Assignee: SK hynix Inc.
    Inventors: Hye Lyoung Lee, Bong Hoon Lee, Chan Lim
  • Publication number: 20180190356
    Abstract: Provided herein may be a semiconductor memory device and a method of operating the same. The semiconductor memory device may include a plurality of pages each including a plurality of memory cells, peripheral circuits configured to perform a program operation of a selected page among the plurality of pages and a control logic configured to control the peripheral circuits such that a main program operation is performed on the selected page and, when the main program operation is completed, a compensation program operation is performed on memory cells having lower threshold voltage retention characteristics compared to remaining memory cells, among the memory cells included in the selected page.
    Type: Application
    Filed: July 17, 2017
    Publication date: July 5, 2018
    Applicant: SK hynix Inc.
    Inventors: Hye Lyoung LEE, Bong Hoon LEE, Chan LIM
  • Publication number: 20180138033
    Abstract: Methods of removing metal from a portion of a substrate include exposing the substrate to a reducing environment comprising at least one reducing agent and at least one oxidizing agent, determining whether metal remaining on the portion of the substrate is less than or equal to a particular level, and exposing the substrate to an oxidizing environment comprising at least one oxidizing agent and at least one reducing agent if the metal remaining on the portion of the substrate is deemed to be greater than the particular level.
    Type: Application
    Filed: January 11, 2018
    Publication date: May 17, 2018
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Brian Dolan, Robert J. Hanson, Chan Lim
  • Patent number: 9887077
    Abstract: Methods of removing metal from a portion of a substrate are useful in integrated circuit fabrication. Methods include exposing the substrate to an oxidizing environment comprising at least one oxidizing agent and at least one reducing agent, determining whether metal remaining on the portion of the substrate is less than or equal to a particular level, and if the metal remaining on the portion of the substrate is deemed to be greater than the particular level, exposing the substrate to a reducing environment comprising at least one reducing agent and at least one oxidizing agent.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: February 6, 2018
    Assignee: Micron Technology, Inc.
    Inventors: Brian Dolan, Robert J. Hanson, Chan Lim
  • Publication number: 20160196967
    Abstract: Methods of removing metal from a portion of a substrate are useful in integrated circuit fabrication. Methods include exposing the substrate to an oxidizing environment comprising at least one oxidizing agent and at least one reducing agent, determining whether metal remaining on the portion of the substrate is less than or equal to a particular level, and if the metal remaining on the portion of the substrate is deemed to be greater than the particular level, exposing the substrate to a reducing environment comprising at least one reducing agent and at least one oxidizing agent.
    Type: Application
    Filed: March 15, 2016
    Publication date: July 7, 2016
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Brian Dolan, Robert J. Hanson, Chan Lim
  • Patent number: 9293319
    Abstract: Methods of removing metal from a portion of a substrate are useful in integrated circuit fabrication. Methods include exposing the substrate to an oxidizing environment comprising at least one oxidizing agent and at least one reducing agent, and exposing the substrate to a reducing environment comprising at least one reducing agent and at least one oxidizing agent.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: March 22, 2016
    Assignee: Micron Technology, Inc.
    Inventors: Brian Dolan, Robert J. Hanson, Chan Lim
  • Patent number: 8293617
    Abstract: Among various methods, devices, and apparatuses, a number of methods are provided for forming a gap between circuitry. One such method includes depositing a first oxide precursor material on at least two conductive lines having at least one gap between the at least two conductive lines, and forming a breadloaf configuration with the first oxide precursor material on a top of each of the at least two conductive lines that leaves a space between a closest approach of at least two adjacent breadloaf configurations. The method also includes depositing a second oxide precursor material over the first oxide precursor material, where depositing the second oxide precursor material results in closing the space between the closest approach of the at least two adjacent breadloaf configurations.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: October 23, 2012
    Assignee: Micron Technology, Inc.
    Inventors: Arthur J. McGinnis, Sachin Joshi, Chan Lim
  • Publication number: 20120231561
    Abstract: Methods of removing metal from a portion of a substrate are useful in integrated circuit fabrication. Methods include exposing the substrate to an oxidizing environment comprising at least one oxidizing agent and at least one reducing agent, and exposing the substrate to a reducing environment comprising at least one reducing agent and at least one oxidizing agent.
    Type: Application
    Filed: March 9, 2011
    Publication date: September 13, 2012
    Inventors: Brian Dolan, Robert J. Hanson, Chan Lim
  • Patent number: 8173507
    Abstract: Methods include forming a charge storage transistor gate stack over semiconductive material. One such stack includes a tunnel dielectric, charge storage material over the tunnel dielectric, a high-k dielectric over the charge storage material, and conductive control gate material over the high-k dielectric. The stack is etched at least to the tunnel dielectric to form a plurality of charge storage transistor gate lines over the semiconductive material. Individual of the gate lines have laterally projecting feet which include the high-k dielectric. After etching the stack to form the gate lines, ions are implanted into an implant region which includes the high-k dielectric of the laterally projecting feet. The ions are chemically inert to the high-k dielectric. The ion implanted high-k dielectric of the projecting feet is etched selectively relative to portions of the high-k dielectric outside of the implant region.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: May 8, 2012
    Assignee: Micron Technology, Inc.
    Inventors: Chan Lim, Jennifer Lequn Liu, Brian Dolan, Saurabh Keshav, Hongbin Zhu
  • Publication number: 20120040534
    Abstract: Among various methods, devices, and apparatuses, a number of methods are provided for forming a gap between circuitry. One such method includes depositing a first oxide precursor material on at least two conductive lines having at least one gap between the at least two conductive lines, and forming a breadloaf configuration with the first oxide precursor material on a top of each of the at least two conductive lines that leaves a space between a closest approach of at least two adjacent breadloaf configurations. The method also includes depositing a second oxide precursor material over the first oxide precursor material, where depositing the second oxide precursor material results in closing the space between the closest approach of the at least two adjacent breadloaf configurations.
    Type: Application
    Filed: October 27, 2011
    Publication date: February 16, 2012
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Arthur J. McGinnis, Sachin Joshi, Chan Lim
  • Publication number: 20110312171
    Abstract: Methods include forming a charge storage transistor gate stack over semiconductive material. One such stack includes a tunnel dielectric, charge storage material over the tunnel dielectric, a high-k dielectric over the charge storage material, and conductive control gate material over the high-k dielectric. The stack is etched at least to the tunnel dielectric to form a plurality of charge storage transistor gate lines over the semiconductive material. Individual of the gate lines have laterally projecting feet which include the high-k dielectric. After etching the stack to form the gate lines, ions are implanted into an implant region which includes the high-k dielectric of the laterally projecting feet. The ions are chemically inert to the high-k dielectric. The ion implanted high-k dielectric of the projecting feet is etched selectively relative to portions of the high-k dielectric outside of the implant region.
    Type: Application
    Filed: June 22, 2010
    Publication date: December 22, 2011
    Inventors: Chan Lim, Jennifer Lequn Liu, Brian Dolan, Saurabh Keshav, Hongbin Zhu
  • Patent number: 8058138
    Abstract: Among various methods, devices, and apparatuses, a number of methods are provided for forming a gap between circuitry. One such method includes depositing a first oxide precursor material on at least two conductive lines having at least one gap between the at least two conductive lines, and forming a breadloaf configuration with the first oxide precursor material on a top of each of the at least two conductive lines that leaves a space between a closest approach of at least two adjacent breadloaf configurations. The method also includes depositing a second oxide precursor material over the first oxide precursor material, where depositing the second oxide precursor material results in closing the space between the closest approach of the at least two adjacent breadloaf configurations.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: November 15, 2011
    Assignee: Micron Technology, Inc.
    Inventors: Arthur J. McGinnis, Sachin Joshi, Chan Lim
  • Patent number: 7923336
    Abstract: A high-k dielectric film, a method of forming the high-k dielectric film, and a method of forming a related semiconductor device are provided. The high-k dielectric film includes a bottom layer of metal-silicon-oxynitride having a first nitrogen content and a first silicon content and a top layer of metal-silicon-oxynitride having a second nitrogen content and a second silicon content. The second nitrogen content is higher than the first nitrogen content and the second silicon content is higher than the first silicon content.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: April 12, 2011
    Assignee: Infineon Technologies AG
    Inventors: Kil-Ho Lee, Chan Lim
  • Publication number: 20100047991
    Abstract: A high-k dielectric film, a method of forming the high-k dielectric film, and a method of forming a related semiconductor device are provided. The high-k dielectric film includes a bottom layer of metal-silicon-oxynitride having a first nitrogen content and a first silicon content and a top layer of metal-silicon-oxynitride having a second nitrogen content and a second silicon content. The second nitrogen content is higher than the first nitrogen content and the second silicon content is higher than the first silicon content.
    Type: Application
    Filed: October 30, 2009
    Publication date: February 25, 2010
    Inventors: Kil-Ho Lee, Chan Lim
  • Patent number: 7655099
    Abstract: A high-k dielectric film, a method of forming the high-k dielectric film, and a method of forming a related semiconductor device are provided. The high-k dielectric film includes a bottom layer of metal-silicon-oxynitride having a first nitrogen content and a first silicon content and a top layer of metal-silicon-oxynitride having a second nitrogen content and a second silicon content. The second nitrogen content is higher than the first nitrogen content and the second silicon content is higher than the first silicon content.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: February 2, 2010
    Assignee: Infineon Technologies AG
    Inventors: Kil-Ho Lee, Chan Lim