Patents by Inventor Yukiko Umemoto

Yukiko Umemoto 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: 10354735
    Abstract: A semiconductor device includes a plurality of nonvolatile memory cells (1). Each of the nonvolatile memory cells comprises a MOS type first transistor section (3) used for information storage, and a MOS type second transistor section (4) which selects the first transistor section. The second transistor section has a bit line electrode (16) connected to a bit line, and a control gate electrode (18) connected to a control gate control line. The first transistor section has a source line electrode (10) connected to a source line, a memory gate electrode (14) connected to a memory gate control line, and a charge storage region (11) disposed directly below the memory gate electrode. A gate withstand voltage of the second transistor section is lower than that of the first transistor section.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: July 16, 2019
    Assignee: Renesas Electronics Corporation
    Inventors: Toshihiro Tanaka, Yukiko Umemoto, Mitsuru Hiraki, Yutaka Shinagawa, Masamichi Fujito, Kazufumi Suzukawa, Hiroyuki Tanikawa, Takashi Yamaki, Yoshiaki Kamigaki, Shinichi Minami, Kozo Katayama, Nozomu Matsuzaki
  • Publication number: 20180374542
    Abstract: A semiconductor device includes a plurality of nonvolatile memory cells (1). Each of the nonvolatile memory cells comprises a MOS type first transistor section (3) used for information storage, and a MOS type second transistor section (4) which selects the first transistor section. The second transistor section has a bit line electrode (16) connected to a bit line, and a control gate electrode (18) connected to a control gate control line. The first transistor section has a source line electrode (10) connected to a source line, a memory gate electrode (14) connected to a memory gate control line, and a charge storage region (11) disposed directly below the memory gate electrode. A gate withstand voltage of the second transistor section is lower than that of the first transistor section.
    Type: Application
    Filed: August 29, 2018
    Publication date: December 27, 2018
    Inventors: Toshihiro TANAKA, Yukiko UMEMOTO, Mitsuru HIRAKI, Yutaka SHINAGAWA, Masamichi FUJITO, Kazufumi SUZUKAWA, Hiroyuki TANIKAWA, Takashi YAMAKI, Yoshiaki KAMIGAKI, Shinichi MINAMI, Kozo KATAYAMA, Nozomu MATSUZAKI
  • Patent number: 10115469
    Abstract: A semiconductor device includes a plurality of nonvolatile memory cells (1). Each of the nonvolatile memory cells comprises a MOS type first transistor section (3) used for information storage, and a MOS type second transistor section (4) which selects the first transistor section. The second transistor section has a bit line electrode (16) connected to a bit line, and a control gate electrode (18) connected to a control gate control line. The first transistor section has a source line electrode (10) connected to a source line, a memory gate electrode (14) connected to a memory gate control line, and a charge storage region (11) disposed directly below the memory gate electrode. A gate withstand voltage of the second transistor section is lower than that of the first transistor section.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: October 30, 2018
    Assignee: Renesas Electronics Corporation
    Inventors: Toshihiro Tanaka, Yukiko Umemoto, Mitsuru Hiraki, Yutaka Shinagawa, Masamichi Fujito, Kazufumi Suzukawa, Hiroyuki Tanikawa, Takashi Yamaki, Yoshiaki Kamigaki, Shinichi Minami, Kozo Katayama, Nozomu Matsuzaki
  • Publication number: 20180047452
    Abstract: A semiconductor device includes a plurality of nonvolatile memory cells (1). Each of the nonvolatile memory cells comprises a MOS type first transistor section (3) used for information storage, and a MOS type second transistor section (4) which selects the first transistor section. The second transistor section has a bit line electrode (16) connected to a bit line, and a control gate electrode (18) connected to a control gate control line. The first transistor section has a source line electrode (10) connected to a source line, a memory gate electrode (14) connected to a memory gate control line, and a charge storage region (11) disposed directly below the memory gate electrode. A gate withstand voltage of the second transistor section is lower than that of the first transistor section.
    Type: Application
    Filed: October 27, 2017
    Publication date: February 15, 2018
    Inventors: Toshihiro TANAKA, Yukiko UMEMOTO, Mitsuru HIRAKI, Yutaka SHINAGAWA, Masamichi FUJITO, Kazufumi SUZUKAWA, Hiroyuki TANIKAWA, Takashi YAMAKI, Yoshiaki KAMIGAKI, Shinichi MINAMI, Kozo KATAYAMA, Nozomu MATSUZAKI
  • Patent number: 9812211
    Abstract: A semiconductor device includes a plurality of nonvolatile memory cells (1). Each of the nonvolatile memory cells comprises a MOS type first transistor section (3) used for information storage, and a MOS type second transistor section (4) which selects the first transistor section. The second transistor section has a bit line electrode (16) connected to a bit line, and a control gate electrode (18) connected to a control gate control line. The first transistor section has a source line electrode (10) connected to a source line, a memory gate electrode (14) connected to a memory gate control line, and a charge storage region (11) disposed directly below the memory gate electrode. A gate withstand voltage of the second transistor section is lower than that of the first transistor section.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: November 7, 2017
    Assignee: Renesas Electronics Corporation
    Inventors: Toshihiro Tanaka, Yukiko Umemoto, Mitsuru Hiraki, Yutaka Shinagawa, Masamichi Fujito, Kazufumi Suzukawa, Hiroyuki Tanikawa, Takashi Yamaki, Yoshiaki Kamigaki, Shinichi Minami, Kozo Katayama, Nozomu Matsuzaki
  • Publication number: 20160336074
    Abstract: A semiconductor device includes a plurality of nonvolatile memory cells (1). Each of the nonvolatile memory cells comprises a MOS type first transistor section (3) used for information storage, and a MOS type second transistor section (4) which selects the first transistor section. The second transistor section has a bit line electrode (16) connected to a bit line, and a control gate electrode (18) connected to a control gate control line. The first transistor section has a source line electrode (10) connected to a source line, a memory gate electrode (14) connected to a memory gate control line, and a charge storage region (11) disposed directly below the memory gate electrode. A gate withstand voltage of the second transistor section is lower than that of the first transistor section.
    Type: Application
    Filed: August 1, 2016
    Publication date: November 17, 2016
    Inventors: Toshihiro TANAKA, Yukiko UMEMOTO, Mitsuru HIRAKI, Yutaka SHINAGAWA, Masamichi FUJITO, Kazufumi SUZUKAWA, Hiroyuki TANIKAWA, Takashi YAMAKI, Yoshiaki KAMIGAKI, Shinichi MINAMI, Kozo KATAYAMA, Nozomu MATSUZAKI
  • Patent number: 9412459
    Abstract: A semiconductor device includes a plurality of nonvolatile memory cells (1). Each of the nonvolatile memory cells comprises a MOS type first transistor section (3) used for information storage, and a MOS type second transistor section (4) which selects the first transistor section. The second transistor section has a bit line electrode (16) connected to a bit line, and a control gate electrode (18) connected to a control gate control line. The first transistor section has a source line electrode (10) connected to a source line, a memory gate electrode (14) connected to a memory gate control line, and a charge storage region (11) disposed directly below the memory gate electrode. A gate withstand voltage of the second transistor section is lower than that of the first transistor section.
    Type: Grant
    Filed: March 16, 2014
    Date of Patent: August 9, 2016
    Assignee: Renesas Electronics Corporation
    Inventors: Toshihiro Tanaka, Yukiko Umemoto, Mitsuru Hiraki, Yutaka Shinagawa, Masamichi Fujito, Kazufumi Suzukawa, Hiroyuki Tanikawa, Takashi Yamaki, Yoshiaki Kamigaki, Shinichi Minami, Kozo Katayama, Nozomu Matsuzaki
  • Publication number: 20140198577
    Abstract: A semiconductor device includes a plurality of nonvolatile memory cells (1). Each of the nonvolatile memory cells comprises a MOS type first transistor section (3) used for information storage, and a MOS type second transistor section (4) which selects the first transistor section. The second transistor section has a bit line electrode (16) connected to a bit line, and a control gate electrode (18) connected to a control gate control line. The first transistor section has a source line electrode (10) connected to a source line, a memory gate electrode (14) connected to a memory gate control line, and a charge storage region (11) disposed directly below the memory gate electrode. A gate withstand voltage of the second transistor section is lower than that of the first transistor section.
    Type: Application
    Filed: March 16, 2014
    Publication date: July 17, 2014
    Applicants: HITACHI ULSI SYSTEMS CO., LTD., RENESAS ELECTRONICS CORPORATION
    Inventors: Toshihiro TANAKA, Yukiko UMEMOTO, Mitsuru HIRAKI, Yutaka SHINAGAWA, Masamichi FUJITO, Kazufumi SUZUKAWA, Hiroyuki TANIKAWA, Takashi YAMAKI, Yoshiaki KAMIGAKI, Shinichi MINAMI, Kozo KATAYAMA, Nozomu MATSUZAKI
  • Patent number: 8698224
    Abstract: A semiconductor device includes a plurality of nonvolatile memory cells (1). Each of the nonvolatile memory cells comprises a MOS type first transistor section (3) used for information storage, and a MOS type second transistor section (4) which selects the first transistor section. The second transistor section has a bit line electrode (16) connected to a bit line, and a control gate electrode (18) connected to a control gate control line. The first transistor section has a source line electrode (10) connected to a source line, a memory gate electrode (14) connected to a memory gate control line, and a charge storage region (11) disposed directly below the memory gate electrode. A gate withstand voltage of the second transistor section is lower than that of the first transistor section.
    Type: Grant
    Filed: April 20, 2013
    Date of Patent: April 15, 2014
    Assignees: Renesas Electronics Corporation, Hitachi ULSI Systems Co., Ltd.
    Inventors: Toshihiro Tanaka, Yukiko Umemoto, Mitsuru Hiraki, Yutaka Shinagawa, Masamichi Fujito, Kazufumi Suzukawa, Hiroyuki Tanikawa, Takashi Yamaki, Yoshiaki Kamigaki, Shinichi Minami, Kozo Katayama, Nozomu Matsuzaki
  • Publication number: 20130235668
    Abstract: A semiconductor device includes a plurality of nonvolatile memory cells (1). Each of the nonvolatile memory cells comprises a MOS type first transistor section (3) used for information storage, and a MOS type second transistor section (4) which selects the first transistor section. The second transistor section has a bit line electrode (16) connected to a bit line, and a control gate electrode (18) connected to a control gate control line. The first transistor section has a source line electrode (10) connected to a source line, a memory gate electrode (14) connected to a memory gate control line, and a charge storage region (11) disposed directly below the memory gate electrode. A gate withstand voltage of the second transistor section is lower than that of the first transistor section.
    Type: Application
    Filed: April 20, 2013
    Publication date: September 12, 2013
    Applicants: HITACHI ULSI SYSTEMS CO., LTD., RENESAS ELECTRONICS CORPORATION
    Inventors: Toshihiro TANAKA, Yukiko UMEMOTO, Mitsuru HIRAKI, Yutaka SHINAGAWA, Masamichi FUJITO, Kazufumi SUZUKAWA, Hiroyuki TANIKAWA, Takashi YAMAKI, Yoshiaki KAMIGAKI, Shinichi MINAMI, Kozo KATAYAMA, Nozomu MATSUZAKI
  • Patent number: 8426904
    Abstract: A semiconductor device includes a plurality of nonvolatile memory cells (1). Each of the nonvolatile memory cells comprises a MOS type first transistor section (3) used for information storage, and a MOS type second transistor section (4) which selects the first transistor section. The second transistor section has a bit line electrode (16) connected to a bit line, and a control gate electrode (18) connected to a control gate control line. The first transistor section has a source line electrode (10) connected to a source line, a memory gate electrode (14) connected to a memory gate control line, and a charge storage region (11) disposed directly below the memory gate electrode. A gate withstand voltage of the second transistor section is lower than that of the first transistor section.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: April 23, 2013
    Assignees: Renesas Electronics Corporation, Hitachi ULSI Systems Co., Ltd.
    Inventors: Toshihiro Tanaka, Yukiko Umemoto, Mitsuru Hiraki, Yutaka Shinagawa, Masamichi Fujito, Kazufumi Suzukawa, Hiroyuki Tanikawa, Takashi Yamaki, Yoshiaki Kamigaki, Shinichi Minami, Kozo Katayama, Nozomu Matsuzaki
  • Publication number: 20110309428
    Abstract: A semiconductor device includes a plurality of nonvolatile memory cells (1). Each of the nonvolatile memory cells comprises a MOS type first transistor section (3) used for information storage, and a MOS type second transistor section (4) which selects the first transistor section. The second transistor section has a bit line electrode (16) connected to a bit line, and a control gate electrode (18) connected to a control gate control line. The first transistor section has a source line electrode (10) connected to a source line, a memory gate electrode (14) connected to a memory gate control line, and a charge storage region (11) disposed directly below the memory gate electrode. A gate withstand voltage of the second transistor section is lower than that of the first transistor section.
    Type: Application
    Filed: September 1, 2011
    Publication date: December 22, 2011
    Inventors: TOSHIHIRO TANAKA, Yukiko UMEMOTO, Mitsuru HIRAKI, Yutaka SHINAGAWA, Masamichi FUJITO, Kazufumi SUZUKAWA, Hiroyuki TANIKAWA, Takeshi YAMAKI, Yoshiaki KAMIGAKI, Shinichi MINAMI, Kozo KATAYAMA, Nozomu MATSUZAKI
  • Patent number: 8017986
    Abstract: A semiconductor device includes a plurality of nonvolatile memory cells (1). Each of the nonvolatile memory cells comprises a MOS type first transistor section (3) used for information storage, and a MOS type second transistor section (4) which selects the first transistor section. The second transistor section has a bit line electrode (16) connected to a bit line, and a control gate electrode (18) connected to a control gate control line. The first transistor section has a source line electrode (10) connected to a source line, a memory gate electrode (14) connected to a memory gate control line, and a charge storage region (11) disposed directly below the memory gate electrode. A gate withstand voltage of the second transistor section is lower than that of the first transistor section.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: September 13, 2011
    Assignees: Renesas Electronics Corporation, Hitachi ULSI Systems Co., Ltd.
    Inventors: Toshihiro Tanaka, Yukiko Umemoto, Mitsuru Hiraki, Yutaka Shinagawa, Masamichi Fujito, Kazufumi Suzukawa, Hiroyuki Tanikawa, Takashi Yamaki, Yoshiaki Kamigaki, Shinichi Minami, Kozo Katayama, Nozomu Matsuzaki
  • Publication number: 20100157689
    Abstract: A semiconductor device includes a plurality of nonvolatile memory cells (1). Each of the nonvolatile memory cells comprises a MOS type first transistor section (3) used for information storage, and a MOS type second transistor section (4) which selects the first transistor section. The second transistor section has a bit line electrode (16) connected to a bit line, and a control gate electrode (18) connected to a control gate control line. The first transistor section has a source line electrode (10) connected to a source line, a memory gate electrode (14) connected to a memory gate control line, and a charge storage region (11) disposed directly below the memory gate electrode. A gate withstand voltage of the second transistor section is lower than that of the first transistor section.
    Type: Application
    Filed: March 5, 2010
    Publication date: June 24, 2010
    Inventors: TOSHIHIRO TANAKA, Yukiko Umemoto, Mitsuru Hiraki, Yutaka Shinagawa, Masamichi Fujito, Kazufumi Suzukawa, Hiroyuki Tanikawa, Takashi Yamaki, Yoshiaki Kamigaki, Shinichi Minami, Kozo Katayama, Nozomu Matsuzaki
  • Patent number: 7700992
    Abstract: A semiconductor device includes a plurality of nonvolatile memory cells (1). Each of the nonvolatile memory cells comprises a MOS type first transistor section (3) used for information storage, and a MOS type second transistor section (4) which selects the first transistor section. The second transistor section has a bit line electrode (16) connected to a bit line, and a control gate electrode (18) connected to a control gate control line. The first transistor section has a source line electrode (10) connected to a source line, a memory gate electrode (14) connected to a memory gate control line, and a charge storage region (11) disposed directly below the memory gate electrode. A gate withstand voltage of the second transistor section is lower than that of the first transistor section.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: April 20, 2010
    Assignees: Renesas Technology Corp., Hitachi ULSI Systems Co., Ltd.
    Inventors: Toshihiro Tanaka, Yukiko Umemoto, Mitsuru Hiraki, Yutaka Shinagawa, Masamichi Fujito, Kazufumi Suzukawa, Hiroyuki Tanikawa, Takashi Yamaki, Yoshiaki Kamigaki, Shinichi Minami, Kozo Katayama, Nozomu Matsuzaki
  • Publication number: 20090010072
    Abstract: A semiconductor device includes a plurality of nonvolatile memory cells (1). Each of the nonvolatile memory cells comprises a MOS type first transistor section (3) used for information storage, and a MOS type second transistor section (4) which selects the first transistor section. The second transistor section has a bit line electrode (16) connected to a bit line, and a control gate electrode (18) connected to a control gate control line. The first transistor section has a source line electrode (10) connected to a source line, a memory gate electrode (14) connected to a memory gate control line, and a charge storage region (11) disposed directly below the memory gate electrode. A gate withstand voltage of the second transistor section is lower than that of the first transistor section.
    Type: Application
    Filed: June 19, 2008
    Publication date: January 8, 2009
    Inventors: Toshihiro TANAKA, Yukiko Umemoto, Mitsuru Hiraki, Yutaka Shinagawa, Masamichi Fujito, Kazufumi Suzukawa, Hiroyuki Tanikawa, Takashi Yamaki, Yoshiaki Kamigaki, Shinichi Minami, Kozo Katayama, Nozomu Matsuzaki
  • Patent number: 7414283
    Abstract: A semiconductor device includes a plurality of nonvolatile memory cells (1). Each of the nonvolatile memory cells comprises a MOS type first transistor section (3) used for information storage, and a MOS type second transistor section (4) which selects the first transistor section. The second transistor section has a bit line electrode (16) connected to a bit line, and a control gate electrode (18) connected to a control gate control line. The first transistor section has a source line electrode (10) connected to a source line, a memory gate electrode (14) connected to a memory gate control line, and a charge storage region (11) disposed directly below the memory gate electrode. A gate withstand voltage of the second transistor section is lower than that of the first transistor section.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: August 19, 2008
    Assignees: Renesas Technology Corp., Hitachi ULSI Systems Co., Ltd.
    Inventors: Toshihiro Tanaka, Yukiko Umemoto, Mitsuru Hiraki, Yutaka Shinagawa, Masamichi Fujito, Kazufumi Suzukawa, Hiroyuki Tanikawa, Takashi Yamaki, Yoshiaki Kamigaki, Shinichi Minami, Kozo Katayama, Nozomu Matsuzaki
  • Publication number: 20060220100
    Abstract: A semiconductor device includes a plurality of nonvolatile memory cells (1). Each of the nonvolatile memory cells comprises a MOS type first transistor section (3) used for information storage, and a MOS type second transistor section (4) which selects the first transistor section. The second transistor section has a bit line electrode (16) connected to a bit line, and a control gate electrode (18) connected to a control gate control line. The first transistor section has a source line electrode (10) connected to a source line, a memory gate electrode (14) connected to a memory gate control line, and a charge storage region (11) disposed directly below the memory gate electrode. A gate withstand voltage of the second transistor section is lower than that of the first transistor section.
    Type: Application
    Filed: May 2, 2006
    Publication date: October 5, 2006
    Inventors: Toshihiro Tanaka, Yukiko Umemoto, Mitsuru Hiraki, Yutaka Shinagawa, Masamichi Fujito, Kazufumi Suzukawa, Hiroyuki Tanikawa, Takashi Yamaki, Yoshiaki Kamigaki, Shinichi Minami, Kozo Katayama, Nozomu Matsuzaki
  • Patent number: 7110295
    Abstract: An erasing current is distributed to reduce a load of an internal power circuit and to decrease the number of drivers for erase. A semiconductor data processing device has: a memory array having nonvolatile memory cells arrayed in a matrix and divided into a plurality of erase blocks each instructed to be erased together; and a control circuit, wherein the control circuit controls both of two kinds of erasing voltages applied to the nonvolatile memory cell in the erase block instructed to be erased together to select an erase sector from the erase block for performing erase for each erase sector, thereby performing the erase for each erase sector in time division. Time division erase can distribute an erasing current. Two kinds of erasing voltages are used to select the erase sector. No specific drivers need be provided for each erase sector.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: September 19, 2006
    Assignee: Renesas Technology Corp.
    Inventors: Jiro Ishikawa, Takashi Yamaki, Toshihiro Tanaka, Yukiko Umemoto, Akira Kato
  • Patent number: 7057230
    Abstract: A semiconductor device includes a plurality of nonvolatile memory cells (1). Each of the nonvolatile memory cells comprises a MOS type first transistor section (3) used for information storage, and a MOS type second transistor section (4) which selects the first transistor section. The second transistor section has a bit line electrode (16) connected to a bit line, and a control gate electrode (18) connected to a control gate control line. The first transistor section has a source line electrode (10) connected to a source line, a memory gate electrode (14) connected to a memory gate control line, and a charge storage region (11) disposed directly below the memory gate electrode. A gate withstand voltage of the second transistor section is lower than that of the first transistor section.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: June 6, 2006
    Assignees: Renesas Technology Corp., Hitachi ULSI Systems Co., Ltd.
    Inventors: Toshihiro Tanaka, Yukiko Umemoto, Mitsuru Hiraki, Yutaka Shinagawa, Masamichi Fujito, Kazufumi Suzukawa, Hiroyuki Tanikawa, Takashi Yamaki, Yoshiaki Kamigaki, Shinichi Minami, Kozo Katayama, Nozomu Matsuzaki