Patents by Inventor Kan Takeuchi

Kan Takeuchi 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: 8093723
    Abstract: In a semiconductor integrated circuit device having plural layers of buried wirings, it is intended to prevent the occurrence of a discontinuity caused by stress migration at an interface between a plug connected at a bottom thereof to a buried wiring and the buried wiring. For example, in the case where the width of a first Cu wiring is not smaller than about 0.9 ?m and is smaller than about 1.44 ?m, and the width of a second Cu wiring and the diameter of a plug are about 0.18 ?m, there are arranged two or more plugs which connect the first wirings and the second Cu wirings electrically with each other.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: January 10, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Takako Funakoshi, Eiichi Murakami, Kazumasa Yanagisawa, Kan Takeuchi, Hideo Aoki, Hizuru Yamaguchi, Takayuki Oshima, Kazuyuki Tsunokuni, Kousuke Okuyama
  • Publication number: 20110204486
    Abstract: In a semiconductor integrated circuit device having plural layers of buried wirings, it is intended to prevent the occurrence of a discontinuity caused by stress migration at an interface between a plug connected at a bottom thereof to a buried wiring and the buried wiring. For example, in the case where the width of a first Cu wiring is not smaller than about 0.9 ?m and is smaller than about 1.44 ?m, and the width of a second Cu wiring and the diameter of a plug are about 0.18 ?m, there are arranged two or more plugs which connect the first wirings and the second Cu wirings electrically with each other.
    Type: Application
    Filed: May 2, 2011
    Publication date: August 25, 2011
    Inventors: Takako FUNAKOSHI, Eiichi MURAKAMI, Kazumasa YANAGISAWA, Kan TAKEUCHI, Hideo AOKI, Hizuru YAMAGUCHI, Takayuki OSHIMA, Kazuyuki TSUNOKUNI, Kousuke OKUYAMA
  • Patent number: 7977238
    Abstract: A manufacturing technique is disclosed for producing a semiconductor integrated circuit device having plural layers of buried wirings, and such that there is prevented the occurrence of a discontinuity caused by stress migration at an interface between a plug connected at a bottom thereof to a buried wiring and the buried wiring. For example, in the case where the width of a first Cu wiring is not smaller than about 0.9 ?m and is smaller than about 1.44 ?m, and the width of a second Cu wiring and the diameter of a plug are about 0.18 ?m, there are arranged two or more plugs which connect the first wirings and the second Cu wirings electrically with each other.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: July 12, 2011
    Assignee: Renesas Electronics Corporation
    Inventors: Takako Funakoshi, Eiichi Murakami, Kazumasa Yanagisawa, Kan Takeuchi, Hideo Aoki, Hizuru Yamaguchi, Takayuki Oshima, Kazuyuki Tsunokuni, Kousuke Okuyama
  • Patent number: 7786585
    Abstract: In a semiconductor integrated circuit device having plural layers of buried wirings, it is intended to prevent the occurrence of a discontinuity caused by stress migration at an interface between a plug connected at a bottom thereof to a buried wiring and the buried wiring. For example, in the case where the width of a first Cu wiring is not smaller than about 0.9 ?m and is smaller than about 1.44 ?m, and the width of a second Cu wiring and the diameter of a plug are about 0.18 ?m, there are arranged two or more plugs which connect the first wirings and the second Cu wirings electrically with each other.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: August 31, 2010
    Assignee: Renesas Electronics Corp.
    Inventors: Takako Funakoshi, Eiichi Murakami, Kazumasa Yanagisawa, Kan Takeuchi, Hideo Aoki, Hizuru Yamaguchi, Takayuki Oshima, Kazuyuki Tsunokuni, Kousuke Okuyama
  • Publication number: 20100203724
    Abstract: A manufacturing technique is disclosed for producing a semiconductor integrated circuit device having plural layers of buried wirings, and such that there is prevented the occurrence of a discontinuity caused by stress migration at an interface between a plug connected at a bottom thereof to a buried wiring and the buried wiring. For example, in the case where the width of a first Cu wiring is not smaller than about 0.9 ?m and is smaller than about 1.44 ?m, and the width of a second Cu wiring and the diameter of a plug are about 0.18 ?m, there are arranged two or more plugs which connect the first wirings and the second Cu wirings electrically with each other.
    Type: Application
    Filed: April 21, 2010
    Publication date: August 12, 2010
    Inventors: Takako FUNAKOSHI, Eiichi Murakami, Kazumasa Yanagisawa, Kan Takeuchi, Hideo Aoki, Hizuru Yamaguchi, Takayuki Oshima, Kazuyuki Tsunokuni, Kousuke Okuyama
  • Publication number: 20080303158
    Abstract: In a semiconductor integrated circuit device having plural layers of buried wirings, it is intended to prevent the occurrence of a discontinuity caused by stress migration at an interface between a plug connected at a bottom thereof to a buried wiring and the buried wiring. For example, in the case where the width of a first Cu wiring is not smaller than about 0.9 ?m and is smaller than about 1.44 ?m, and the width of a second Cu wiring and the diameter of a plug are about 0.18 ?m, there are arranged two or more plugs which connect the first wirings and the second Cu wirings electrically with each other.
    Type: Application
    Filed: August 8, 2008
    Publication date: December 11, 2008
    Inventors: Takako Funakoshi, Eiichi Murakami, Kazumasa Yanagisawa, Kan Takeuchi, Hideo Aoki, Hizuru Yamaguchi, Takayuki Oshima, Kazuyuki Tsunokuni, Kousuke Okuyama
  • Patent number: 7411301
    Abstract: In a semiconductor integrated circuit device having plural layers of buried wirings, it is intended to prevent the occurrence of a discontinuity caused by stress migration at an interface between a plug connected at a bottom thereof to a buried wiring and the buried wiring. For example, in the case where the width of a first Cu wiring is not smaller than about 0.9 ?m and is smaller than about 1.44 ?m, and the width of a second Cu wiring and the diameter of a plug are about 0.18 ?m, there are arranged two or more plugs which connect the first wirings and the second Cu wirings electrically with each other.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: August 12, 2008
    Assignee: Renesas Technology Corp.
    Inventors: Takako Funakoshi, Eiichi Murakami, Kazumasa Yanagisawa, Kan Takeuchi, Hideo Aoki, Hizuru Yamaguchi, Takayuki Oshima, Kazuyuki Tsunokuni, Kousuke Okuyama
  • Publication number: 20080061298
    Abstract: A semiconductor memory device includes a plurality of memory cells, each including, a source region formed of a semiconductor material, a drain region formed of the semiconductor material, and a first region formed of the semiconductor material and located between the source region and the drain region. First and second insulator films sandwich the first region and a first gate electrode is connected to the first region through the first insulator film. In this arrangement, the first region is adapted to accumulate charges corresponding to stored information.
    Type: Application
    Filed: October 31, 2007
    Publication date: March 13, 2008
    Inventors: Kazuo YANO, Tomoyuki Ishii, Takashi Hashimoto, Koichi Seki, Masakazu Aoki, Takeshi Sakata, Yoshinobu Nakagome, Kan Takeuchi
  • Patent number: 7309892
    Abstract: A field-effect semiconductor element implemented with a fewer number of elements and a reduced area and capable of storing data by itself without need for cooling at a cryogenic temperature, and a memory device employing the same. Gate-channel capacitance is set so small that whether or not a trap captures one electron or hole can definitely and distinctively be detected in terms of changes of a current of the semiconductor FET element. By detecting a change in a threshold voltage of the semiconductor element brought about by trapping of electron or hole in the trap, data storage can be realized at a room temperature.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: December 18, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Kazuo Yano, Tomoyuki Ishii, Takashi Hashimoto, Koichi Seki, Masakazu Aoki, Takeshi Sakata, Yoshinobu Nakagome, Kan Takeuchi
  • Publication number: 20060208315
    Abstract: A field-effect semiconductor element implemented with a fewer number of elements and a reduced area and capable of storing data by itself without need for cooling at a cryogenic temperature, and a memory device employing the same. Gate-channel capacitance is set so small that whether or not a trap captures one electron or hole can definitely and distinctively be detected in terms of changes of a current of the semiconductor FET element. By detecting a change in a threshold voltage of the semiconductor element brought about by trapping of electron or hole in the trap, data storage can be realized at a room temperature.
    Type: Application
    Filed: May 24, 2006
    Publication date: September 21, 2006
    Inventors: Kazuo Yano, Tomoyuki Ishii, Takashi Hashimoto, Koichi Seki, Masakazu Aoki, Takeshi Sakata, Yoshinobu Nakagome, Kan Takeuchi
  • Patent number: 7061053
    Abstract: A field-effect semiconductor element implemented with a fewer number of elements and a reduced area and capable of storing data by itself without need for cooling at a cryogenic temperature, and a memory device employing the same. Gate-channel capacitance is set so small that whether or not a trap captures one electron or hole can definitely and distinctively be detected in terms of changes of a current of the semiconductor FET element. By detecting a change in a threshold voltage of the semiconductor element brought about by trapping of electron or hole in the trap, data storage can be realized at a room temperature.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: June 13, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Kazuo Yano, Tomoyuki Ishii, Takashi Hashimoto, Koichi Seki, Masakazu Aoki, Takeshi Sakata, Yoshinobu Nakagome, Kan Takeuchi
  • Patent number: 7023091
    Abstract: In a semiconductor integrated circuit device having plural layers of buried wirings, it is intended to prevent the occurrence of a discontinuity caused by stress migration at an interface between a plug connected at a bottom thereof to a buried wiring and the buried wiring. For example, in the case where the width of a first Cu wiring is not smaller than about 0.9 ?m and is smaller than about 1.44 ?m, and the width of a second Cu wiring and the diameter of a plug are about 0.18 ?m, there are arranged two or more plugs which connect the first wirings and the second Cu wirings electrically with each other.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: April 4, 2006
    Assignee: Renesas Technology Corp.
    Inventors: Takako Funakoshi, Eiichi Murakami, Kazumasa Yanagisawa, Kan Takeuchi, Hideo Aoki, Hizuru Yamaguchi, Takayuki Oshima, Kazuyuki Tsunokuni
  • Publication number: 20060027928
    Abstract: In a semiconductor integrated circuit device having plural layers of buried wirings, it is intended to prevent the occurrence of a discontinuity caused by stress migration at an interface between a plug connected at a bottom thereof to a buried wiring and the buried wiring. For example, in the case where the width of a first Cu wiring is not smaller than about 0.9 ?m and is smaller than about 1.44 ?m, and the width of a second Cu wiring and the diameter of a plug are about 0.18 ?m, there are arranged two or more plugs which connect the first wirings and the second Cu wirings electrically with each other.
    Type: Application
    Filed: September 30, 2005
    Publication date: February 9, 2006
    Inventors: Takako Funakoshi, Eiichi Murakami, Kazumasa Yanagisawa, Kan Takeuchi, Hideo Aoki, Hizuru Yamaguchi, Takayuki Oshima, Kazuyuki Tsunokuni
  • Publication number: 20050023615
    Abstract: A field-effect semiconductor element implemented with a fewer number of elements and a reduced area and capable of storing data by itself without need for cooling at a cryogenic temperature, and a memory device employing the same. Gate-channel capacitance is set so small that whether or not a trap captures one electron or hole can definitely and distinctively be detected in terms of changes of a current of the semiconductor FET element. By detecting a change in a threshold voltage of the semiconductor element brought about by trapping of electron or hole in the trap, data storage can be realized at a room temperature.
    Type: Application
    Filed: August 31, 2004
    Publication date: February 3, 2005
    Inventors: Kazuo Yano, Tomoyuki Ishii, Takashi Hashimoto, Koichi Seki, Masakazu Aoki, Takeshi Sakata, Yoshinobu Nakagome, Kan Takeuchi
  • Patent number: 6787841
    Abstract: A field-effect semiconductor element implemented with a fewer number of elements and a reduced area and capable of storing data by itself without need for cooling at a cryogenic temperature, and a memory device employing the same. Gate-channel capacitance is set so small that whether or not a trap captures one electron or hole can definitely and distinctively be detected in terms of changes of a current of the semiconductor FET element. By detecting a change in a threshold voltage of the semiconductor element brought about by trapping of electron or hole in the trap, data storage can be realized at a room temperature.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: September 7, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Kazuo Yano, Tomoyuki Ishii, Takashi Hashimoto, Koichi Seki, Masakazu Aoki, Takeshi Sakata, Yoshinobu Nakagome, Kan Takeuchi
  • Publication number: 20040065961
    Abstract: In a semiconductor integrated circuit device having plural layers of buried wirings, it is intended to prevent the occurrence of discontinuity caused by stress migration at an interface between a plug connected at a bottom thereof to a buried wiring and the buried wiring. For example, in the case where the width of a Cu wiring is not smaller than about 0.9 &mgr;m and smaller than about 1.44 &mgr;m and the width of another Cu wiring and the diameter of a plug are about 0.18 &mgr;m, there are arranged two or more plugs which connect the Cu wirings and another Cu wirings electrically with each other on the Cu wiring.
    Type: Application
    Filed: June 20, 2003
    Publication date: April 8, 2004
    Inventors: Takako Funakoshi, Eiichi Murakami, Kazumasa Yanagisawa, Kan Takeuchi, Hideo Aoki, Hizuru Yamaguchi, Takayuki Oshima, Kazuyuki Tsunokuni
  • Publication number: 20040041209
    Abstract: A field-effect semiconductor element implemented with a fewer number of elements and a reduced area and capable of storing data by itself without need for cooling at a cryogenic temperature, and a memory device employing the same. Gate-channel capacitance is set so small that whether or not a trap captures one electron or hole can definitely and distinctively be detected in terms of changes of a current of the semiconductor FET element. By detecting a change in a threshold voltage of the semiconductor element brought about by trapping of electron or hole in the trap, data storage can be realized at a room temperature.
    Type: Application
    Filed: August 29, 2003
    Publication date: March 4, 2004
    Inventors: Kazuo Yano, Tomoyuki Ishii, Takashi Hashimoto, Koichi Seki, Masakazu Aoki, Takeshi Sakata, Yoshinobu Nakagome, Kan Takeuchi
  • Patent number: 6674117
    Abstract: A field-effect semiconductor element implemented with a fewer number of elements and a reduced area and capable of storing data by itself without need for cooling at a cryogenic temperature, and a memory device employing the same. Gate-channel capacitance is set so small that whether or not a trap captures one electron or hole can definitely and distinctively be detected in terms of changes of a current of the semiconductor FET element. By detecting a change in a threshold voltage of the semiconductor element brought about by trapping of electron or hole in the trap, data storage can be realized at a room temperature.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: January 6, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Kazuo Yano, Tomoyuki Ishii, Takashi Hashimoto, Koichi Seki, Masakazu Aoki, Takeshi Sakata, Yoshinobu Nakagome, Kan Takeuchi
  • Patent number: 6643193
    Abstract: A semiconductor device whose characteristics are highly reliably regulated for circuits whose desired characteristics need to be realized without being affect by unevenness in device characteristics is to be provided. A replica MOS transistor for amperage measurement connected to an external measuring terminal is provided. A delay circuit and other circuits whose desired characteristics are to be realized have a constant current source MOS transistor formed in the same process as the replica MOS transistor, and a trimming voltage vtri is commonly applied to the respective gates of the constant current source MOS transistor and the replica MOS transistor. Trimming data determined on the basis of an amperage measured from the external measuring terminal are stored into a memory means such as an electrically rewritable non-volatile memory or the like. The trimming data determine the trimming voltage vtri.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: November 4, 2003
    Assignees: Hitachi, Ltd., Hitachi ULSI Systems Co., Ltd.
    Inventors: Takashi Yamaki, Kan Takeuchi, Mitsuru Hirakii, Toshihiro Tanaka, Yutaka Shinagawa, Masamichi Fujito
  • Patent number: 6555882
    Abstract: A field-effect semiconductor element implemented with a fewer number of elements and a reduced area and capable of storing data by itself without need for cooling at a cryogenic temperature, and a memory device employing the same. Gate-channel capacitance is set so small that whether or not a trap captures one electron or hole can definitely and distinctively be detected in terms of changes of a current of the semiconductor FET element. By detecting a change in a threshold voltage of the semiconductor element brought about by trapping of electron or hole in the trap, data storage can be realized at a room temperature.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: April 29, 2003
    Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.
    Inventors: Kazuo Yano, Tomoyuki Ishii, Takashi Hashimoto, Koichi Seki, Masakazu Aoki, Takeshi Sakata, Yoshinobu Nakagome, Kan Takeuchi