Patents by Inventor Midori Morooka

Midori Morooka 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: 11380397
    Abstract: Apparatuses are described that include stacked arrays of memory cell strings and their methods of operation. Apparatuses include architectures that reduce the use of several common components, allowing greater device density and smaller device size for a given semiconductor area.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: July 5, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Midori Morooka, Tomoharu Tanaka
  • Publication number: 20210098065
    Abstract: Apparatuses are described that include stacked arrays of memory cell strings and their methods of operation. Apparatuses include architectures that reduce the use of several common components, allowing greater device density and smaller device size for a given semiconductor area.
    Type: Application
    Filed: October 9, 2020
    Publication date: April 1, 2021
    Inventors: Midori Morooka, Tomoharu Tanaka
  • Patent number: 10803944
    Abstract: Apparatuses are described that include stacked arrays of memory cell strings and their methods of operation. Apparatuses include architectures that reduce the use of several common components, allowing greater device density and smaller device size for a given semiconductor area.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: October 13, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Midori Morooka, Tomoharu Tanaka
  • Publication number: 20200005869
    Abstract: Apparatuses are described that include stacked arrays of memory cell strings and their methods of operation. Apparatuses include architectures that reduce the use of several common components, allowing greater device density and smaller device size for a given semiconductor area.
    Type: Application
    Filed: April 8, 2019
    Publication date: January 2, 2020
    Inventors: Midori Morooka, Tomoharu Tanaka
  • Patent number: 10269429
    Abstract: Apparatuses are described that include stacked arrays of memory cell strings and their methods of operation. Apparatuses include architectures that reduce the use of several common components, allowing greater device density and smaller device size for a given semiconductor area.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: April 23, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Midori Morooka, Tomoharu Tanaka
  • Publication number: 20150162084
    Abstract: Apparatuses are described that include stacked arrays of memory cell strings and their methods of operation. Apparatuses include architectures that reduce the use of several common components, allowing greater device density and smaller device size for a given semiconductor area.
    Type: Application
    Filed: February 19, 2015
    Publication date: June 11, 2015
    Inventors: Midori Morooka, Tomoharu Tanaka
  • Patent number: 8964474
    Abstract: Apparatuses are described that include stacked arrays of memory cell strings and their methods of operation. Apparatuses include architectures that reduce the use of several common components, allowing greater device density and smaller device size for a given semiconductor area.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: February 24, 2015
    Assignee: Micron Technology, Inc.
    Inventors: Midori Morooka, Tomoharu Tanaka
  • Publication number: 20130336065
    Abstract: Apparatuses are described that include stacked arrays of memory cell strings and their methods of operation. Apparatuses include architectures that reduce the use of several common components, allowing greater device density and smaller device size for a given semiconductor area.
    Type: Application
    Filed: June 15, 2012
    Publication date: December 19, 2013
    Inventors: Midori Morooka, Tomoharu Tanaka
  • Patent number: 7675803
    Abstract: A semiconductor device includes a plurality of semiconductor chips and a memory device. The semiconductor chips are provided in a package. Each of the semiconductor chips includes a memory cell array having memory cells which stores data, an output buffer which outputs data read from the memory cell array to an exterior of the semiconductor chip and a control circuit which controls driving power of the output buffer. The memory device stores the number of semiconductor chips provided in the package. The control circuit controls the driving power according to the number of semiconductor chips stored in the memory device.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: March 9, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takahiko Hara, Midori Morooka
  • Patent number: 7564713
    Abstract: The present invention discloses a semiconductor integrated circuit device having nonvolatile semiconductor memory cells, bit lines each connected to one end of the nonvolatile semiconductor memory cells, and a data circuit connected to the bit lines to temporarily store program data for the nonvolatile semiconductor memory cells. During a data write operation, the data circuit changes a potential transferred to each bit line in accordance with a program order of the program data.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: July 21, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Midori Morooka
  • Patent number: 7515473
    Abstract: A semiconductor memory device includes: a memory cell array; a sense amplifier circuit for reading and writing data of the memory cell array page by page; a verify-judge circuit configured to judge write or erase completion based on the verify-read data held in the sense amplifier circuit; and data latches disposed for the respective columns in the memory cell array to be attached to the verify-judge circuit, into which column separation data are written to serve for excluding the corresponding columns from a verifying object, wherein the column separation data are automatically set in the data latches in an initial set-up mode at a power-on time so that at least a part of inaccessible columns for users are excluded from the verifying object.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: April 7, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Koichi Fukuda, Midori Morooka, Hiroyuki Dohmae
  • Patent number: 7486559
    Abstract: 2 or more sets of initial setup data specifying different operation conditions are stored in a memory cell array comprising electrically-rewritable non-volatile memory cells arranged therein. A control circuit reads a set of initial setup data out of the 2 or more sets of initial setup data via an sense amplifier circuit based on the area information. The initial setup data is transferred to an initial setup data latch and stored therein.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: February 3, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Midori Morooka, Koichi Fukuda
  • Publication number: 20080025101
    Abstract: A semiconductor memory device includes: a memory cell array; a sense amplifier circuit for reading and writing data of the memory cell array page by page; a verify-judge circuit configured to judge write or erase completion based on the verify-read data held in the sense amplifier circuit; and data latches disposed for the respective columns in the memory cell array to be attached to the verify-judge circuit, into which column separation data are written to serve for excluding the corresponding columns from a verifying object, wherein the column separation data are automatically set in the data latches in an initial set-up mode at a power-on time so that at least a part of inaccessible columns for users are excluded from the verifying object.
    Type: Application
    Filed: September 27, 2007
    Publication date: January 31, 2008
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Koichi Fukuda, Midori Morooka, Hiroyuki Dohmae
  • Publication number: 20070253254
    Abstract: 2 or more sets of initial setup data specifying different operation conditions are stored in a memory cell array comprising electrically-rewritable non-volatile memory cells arranged therein. A control circuit reads a set of initial setup data out of the 2 or more sets of initial setup data via an sense amplifier circuit based on the area information. The initial setup data is transferred to an initial setup data latch and stored therein.
    Type: Application
    Filed: April 26, 2007
    Publication date: November 1, 2007
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Midori MOROOKA, Koichi FUKUDA
  • Publication number: 20070246807
    Abstract: A semiconductor device includes a plurality of semiconductor chips and a memory device. The semiconductor chips are provided in a package. Each of the semiconductor chips includes a memory cell array having memory cells which stores data, an output buffer which outputs data read from the memory cell array to an exterior of the semiconductor chip and a control circuit which controls driving power of the output buffer. The memory device stores the number of semiconductor chips provided in the package. The control circuit controls the driving power according to the number of semiconductor chips stored in the memory device.
    Type: Application
    Filed: April 23, 2007
    Publication date: October 25, 2007
    Inventors: Takahiko Hara, Midori Morooka
  • Patent number: 7277325
    Abstract: A semiconductor memory device includes: a memory cell array; a sense amplifier circuit for reading and writing data of the memory cell array page by page; a verify-judge circuit configured to judge write or erase completion based on the verify-read data held in the sense amplifier circuit; and data latches disposed for the respective columns in the memory cell array to be attached to the verify-judge circuit, into which column separation data are written to serve for excluding the corresponding columns from a verifying object, wherein the column separation data are automatically set in the data latches in an initial set-up mode at a power-on time so that at least a part of inaccessible columns for users are excluded from the verifying object.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: October 2, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Koichi Fukuda, Midori Morooka, Hiroyuki Dohmae
  • Publication number: 20060245261
    Abstract: The present invention discloses a semiconductor integrated circuit device having nonvolatile semiconductor memory cells, bit lines each connected to one end of the nonvolatile semiconductor memory cells, and a data circuit connected to the bit lines to temporarily store program data for the nonvolatile semiconductor memory cells. During a data write operation, the data circuit changes a potential transferred to each bit line in accordance with a program order of the program data.
    Type: Application
    Filed: April 27, 2006
    Publication date: November 2, 2006
    Inventor: Midori Morooka
  • Publication number: 20060245259
    Abstract: A semiconductor memory device includes: a memory cell array; a sense amplifier circuit for reading and writing data of the memory cell array page by page; a verify-judge circuit configured to judge write or erase completion based on the verify-read data held in the sense amplifier circuit; and data latches disposed for the respective columns in the memory cell array to be attached to the verify-judge circuit, into which column separation data are written to serve for excluding the corresponding columns from a verifying object, wherein the column separation data are automatically set in the data latches in an initial set-up mode at a power-on time so that at least a part of inaccessible columns for users are excluded from the verifying object.
    Type: Application
    Filed: April 28, 2006
    Publication date: November 2, 2006
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Koichi Fukuda, Midori Morooka, Hiroyuki Dohmae