Patents by Inventor Tatsuo Kasaoka

Tatsuo Kasaoka 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: 20240096788
    Abstract: A semiconductor chip includes a lower wiring layer, a multilayer wiring layer formed on the lower wiring layer, and an upper wiring layer formed on the multilayer wiring layer. Here, a thickness of a wiring provided in the lower wiring layer is larger than a thickness of each of a plurality of wirings provided in the multilayer wiring layer, and a thickness of a wiring provided in the upper wiring layer is larger than the thickness of each of the plurality of wirings provided in the multilayer wiring layer. A lower inductor which is a component of a transformer is provided in the lower wiring layer, and an upper inductor which is a component of the transformer is provided in the upper wiring layer.
    Type: Application
    Filed: June 29, 2023
    Publication date: March 21, 2024
    Inventors: Takayuki IGARASHI, Tatsuo KASAOKA, Yasutaka NAKASHIBA
  • Patent number: 9887233
    Abstract: Disclosed are a semiconductor device and a method for manufacturing the semiconductor device that is capable of adequately reducing the influence of inter-wiring capacitance even when a photoelectric conversion element is progressively miniaturized. A plurality of transfer transistors each include a photoelectric conversion element and a signal output section. A plurality of other transistors include at least one signal input/output section that is electrically coupled to the transfer transistors. An interlayer insulating film is formed so as to cover the transfer transistors and the other transistors. A total of at least three of at least one signal output section of the transfer transistors and at least one signal input/output section of the other transistors are coupled by a coupling layer that includes a conductor filled into a groove formed in the interlayer insulating film.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: February 6, 2018
    Assignee: Renesas Electronics Corporation
    Inventor: Tatsuo Kasaoka
  • Publication number: 20160013239
    Abstract: Disclosed are a semiconductor device and a method for manufacturing the semiconductor device that is capable of adequately reducing the influence of inter-wiring capacitance even when a photoelectric conversion element is progressively miniaturized. A plurality of transfer transistors each include a photoelectric conversion element and a signal output section. A plurality of other transistors include at least one signal input/output section that is electrically coupled to the transfer transistors. An interlayer insulating film is formed so as to cover the transfer transistors and the other transistors. A total of at least three of at least one signal output section of the transfer transistors and at least one signal input/output section of the other transistors are coupled by a coupling layer that includes a conductor filled into a groove formed in the interlayer insulating film.
    Type: Application
    Filed: June 23, 2015
    Publication date: January 14, 2016
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventor: Tatsuo KASAOKA
  • Publication number: 20140252441
    Abstract: A technique for enhancing the performance of a memory- and logic-equipped semiconductor device is provided. The semiconductor device comprises a semiconductor substrate, and insulating layer on the semiconductor substrate, a plurality of contact plugs in the insulating layer, and an insulating layer where capacitors, a plurality of contact plugs, barrier metal layers and copper interconnections are formed. Source/drain regions in the upper surface of the semiconductor substrate are electrically connected to the copper interconnections. One of adjacent source/drain regions in the upper surface of the semiconductor substrate is electrically connected to the copper interconnection, while the other is electrically connected to the capacitor.
    Type: Application
    Filed: May 27, 2014
    Publication date: September 11, 2014
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventors: Atsushi HACHISUKA, Atsushi AMO, Tatsuo KASAOKA, Shunji KUBO
  • Publication number: 20120056302
    Abstract: A technique for enhancing the performance of a memory- and logic-equipped semiconductor device is provided. The semiconductor device comprises a semiconductor substrate, and insulating layer on the semiconductor substrate, a plurality of contact plugs in the insulating layer, and an insulating layer where capacitors, a plurality of contact plugs, barrier metal layers and copper interconnections are formed. Source/drain regions in the upper surface of the semiconductor substrate are electrically connected to the copper interconnections. One of adjacent source/drain regions in the upper surface of the semiconductor substrate is electrically connected to the copper interconnection, while the other is electrically connected to the capacitor.
    Type: Application
    Filed: November 14, 2011
    Publication date: March 8, 2012
    Applicant: Renesas Electronics Corporation
    Inventors: Atsushi HACHISUKA, Atsushi AMO, Tatsuo KASAOKA, Shunji KUBO
  • Patent number: 8084279
    Abstract: According to one embodiment of the present invention, a method of manufacturing a semiconductor device includes below steps. A step of preparing a phase shift mask and a normal photomask. A step of stacking a first wiring layer on a semiconductor substrate, and further stacking, on the first wiring layer, a second wiring layer. The second wiring layer includes a second wiring and third wiring. A step of stacking an interlayer insulating film on the second wiring layer. A step of forming, in the interlayer insulating film, a first opening in which the second wiring is exposed, and a second opening in which the third wiring is exposed by photolithography using the normal photomask. A step of burying a metal in the first opening and the second opening. A step of providing a pad to be overlaid on the first and second openings.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: December 27, 2011
    Assignee: Renesas Electronics Corporation
    Inventors: Tatsuo Kasaoka, Kiyohiko Sakakibara, Noboru Mori, Kazunobu Miki
  • Patent number: 8072074
    Abstract: A technique for enhancing the performance of a memory- and logic-equipped semiconductor device is provided. The semiconductor device comprises a semiconductor substrate (1), an insulating layer (19) on the semiconductor substrate (1), a plurality of contact plugs (16, 66) in the insulating layer (19), and an insulating layer (30) where capacitors (82), a plurality of contact plugs (25, 75), barrier metal layers (27, 87) and copper interconnections (29, 88) are formed. Source/drain regions (9) in the upper surface of the semiconductor substrate (1) are electrically connected to the copper interconnections (29). One of adjacent source/drain regions (59) in the upper surface of the semiconductor substrate (1) is electrically connected to the copper interconnection (88), while the other is electrically connected to the capacitor (82).
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: December 6, 2011
    Assignee: Renesas Electronics Corporation
    Inventors: Atsushi Hachisuka, Atsushi Amo, Tatsuo Kasaoka, Shunji Kubo
  • Publication number: 20110095349
    Abstract: A technique for enhancing the performance of a memory- and logic-equipped semiconductor device is provided. The semiconductor device comprises a semiconductor substrate (1), an insulating layer (19) on the semiconductor substrate (1), a plurality of contact plugs (16, 66) in the insulating layer (19), and an insulating layer (30) where capacitors (82), a plurality of contact plugs (25, 75), barrier metal layers (27, 87) and copper interconnections (29, 88) are formed. Source/drain regions (9) in the upper surface of the semiconductor substrate (1) are electrically connected to the copper interconnections (29). One of adjacent source/drain regions (59) in the upper surface of the semiconductor substrate (1) is electrically connected to the copper interconnection (88), while the other is electrically connected to the capacitor (82).
    Type: Application
    Filed: December 21, 2010
    Publication date: April 28, 2011
    Applicant: Renesas Electronics Corporation
    Inventors: Atsushi HACHISUKA, Atsushi AMO, Tatsuo KASAOKA, Shunji KUBO
  • Patent number: 7884480
    Abstract: A technique for enhancing the performance of a memory- and logic-equipped semiconductor device is provided. The semiconductor device comprises a semiconductor substrate (1), an insulating layer (19) on the semiconductor substrate (1), a plurality of contact plugs (16, 66) in the insulating layer (19), and an insulating layer (30) where capacitors (82), a plurality of contact plugs (25, 75), barrier metal layers (27, 87) and copper interconnections (29, 88) are formed. Source/drain regions (9) in the upper surface of the semiconductor substrate (1) are electrically connected to the copper interconnections (29). One of adjacent source/drain regions (59) in the upper surface of the semiconductor substrate (1) is electrically connected to the copper interconnection (88), while the other is electrically connected to the capacitor (82).
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: February 8, 2011
    Assignee: Renesas Electronics Corporation
    Inventors: Atsushi Hachisuka, Atsushi Amo, Tatsuo Kasaoka, Shunji Kubo
  • Publication number: 20100159690
    Abstract: According to one embodiment of the present invention, a method of manufacturing a semiconductor device includes below steps. A step of preparing a phase shift mask and a normal photomask. A step of stacking a first wiring layer on a semiconductor substrate, and further stacking, on the first wiring layer, a second wiring layer. The a second wiring layer includes a second wiring and a third wiring. A step of stacking an interlayer insulating film on the second wiring layer. A step of forming, in the interlayer insulating film, a first opening in which the second wiring is exposed, and a second opening in which the third wiring is exposed by photolithography using the normal photomask. A step of burying a metal in the first opening and the second opening. A step of providing a pad to be overlaid on the first and second openings.
    Type: Application
    Filed: March 9, 2010
    Publication date: June 24, 2010
    Applicant: RENESAS TECHNOLOGY CORP.
    Inventors: Tatsuo Kasaoka, Kiyohiko Sakakibara, Noboru Mori, Kazunobu Miki
  • Patent number: 7696081
    Abstract: According to one embodiment of the present invention, a method of manufacturing a semiconductor device includes below steps. A step of preparing a phase shift mask and a normal photomask. A step of stacking a first wiring layer on a semiconductor substrate, and further stacking, on the first wiring layer, a second wiring layer. The a second wiring layer includes a second wiring and a third wiring. A step of stacking an interlayer insulating film on the second wiring layer. A step of forming, in the interlayer insulating film, a first opening in which the second wiring is exposed, and a second opening in which the third wiring is exposed by photolithography using the normal photomask. A step of burying a metal in the first opening and the second opening. A step of providing a pad to be overlaid on the first and second openings.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: April 13, 2010
    Assignee: Renesas Technology Corp.
    Inventors: Tatsuo Kasaoka, Kiyohiko Sakakibara, Noboru Mori, Kazunobu Miki
  • Patent number: 7563668
    Abstract: A technique for enhancing the performance of a memory- and logic-equipped semiconductor device is provided. The semiconductor device comprises a semiconductor substrate (1), an insulating layer (19) on the semiconductor substrate (1), a plurality of contact plugs (16, 66) in the insulating layer (19), and an insulating layer (30) where capacitors (82), a plurality of contact plugs (25, 75), barrier metal layers (27, 87) and copper interconnections (29, 88) are formed. Source/drain regions (9) in the upper surface of the semiconductor substrate (1) are electrically connected to the copper interconnections (29). One of adjacent source/drain regions (59) in the upper surface of the semiconductor substrate (1) is electrically connected to the copper interconnection (88), while the other is electrically connected to the capacitor (82).
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: July 21, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Atsushi Hachisuka, Atsushi Amo, Tatsuo Kasaoka, Shunji Kubo
  • Publication number: 20090008693
    Abstract: A technique for enhancing the performance of a memory- and logic-equipped semiconductor device is provided. The semiconductor device comprises a semiconductor substrate (1), an insulating layer (19) on the semiconductor substrate (1), a plurality of contact plugs (16, 66) in the insulating layer (19), and an insulating layer (30) where capacitors (82), a plurality of contact plugs (25, 75), barrier metal layers (27, 87) and copper interconnections (29, 88) are formed. Source/drain regions (9) in the upper surface of the semiconductor substrate (1) are electrically connected to the copper interconnections (29). One of adjacent source/drain regions (59) in the upper surface of the semiconductor substrate (1) is electrically connected to the copper interconnection (88), while the other is electrically connected to the capacitor (82).
    Type: Application
    Filed: August 5, 2008
    Publication date: January 8, 2009
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Atsushi HACHISUKA, Atsushi AMO, Tatsuo KASAOKA, Shunji KUBO
  • Publication number: 20080217786
    Abstract: According to one embodiment of the present invention, a method of manufacturing a semiconductor device includes below steps. A step of preparing a phase shift mask and a normal photomask. A step of stacking a first wiring layer on a semiconductor substrate, and further stacking, on the first wiring layer, a second wiring layer. The a second wiring layer includes a second wiring and a third wiring. A step of stacking an interlayer insulating film on the second wiring layer. A step of forming, in the interlayer insulating film, a first opening in which the second wiring is exposed, and a second opening in which the third wiring is exposed by photolithography using the normal photomask. A step of burying a metal in the first opening and the second opening. A step of providing a pad to be overlaid on the first and second openings.
    Type: Application
    Filed: January 30, 2008
    Publication date: September 11, 2008
    Inventors: Tatsuo Kasaoka, Kiyohiko Sakakibara, Noboru Mori, Kazunobu Miki
  • Publication number: 20070059885
    Abstract: A technique for enhancing the performance of a memory- and logic-equipped semiconductor device is provided. The semiconductor device comprises a semiconductor substrate (1), an insulating layer (19) on the semiconductor substrate (1), a plurality of contact plugs (16, 66) in the insulating layer (19), and an insulating layer (30) where capacitors (82), a plurality of contact plugs (25, 75), barrier metal layers (27, 87) and copper interconnections (29, 88) are formed. Source/drain regions (9) in the upper surface of the semiconductor substrate (1) are electrically connected to the copper interconnections (29). One of adjacent source/drain regions (59) in the upper surface of the semiconductor substrate (1) is electrically connected to the copper interconnection (88), while the other is electrically connected to the capacitor (82).
    Type: Application
    Filed: November 3, 2006
    Publication date: March 15, 2007
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Atsushi Hachisuka, Atsushi Amo, Tatsuo Kasaoka, Shunji Kubo
  • Patent number: 7145240
    Abstract: A technique for enhancing the performance of a memory- and logic-equipped semiconductor device is provided. The semiconductor device comprises a semiconductor substrate (1), an insulating layer (19) on the semiconductor substrate (1), a plurality of contact plugs (16, 66) in the insulating layer (19), and an insulating layer (30) where capacitors (82), a plurality of contact plugs (25, 75), barrier metal layers (27, 87) and copper interconnections (29, 88) are formed. Source/drain regions (9) in the upper surface of the semiconductor substrate (1) are electrically connected to the copper interconnections (29). One of adjacent source/drain regions (59) in the upper surface of the semiconductor substrate (1) is electrically connected to the copper interconnection (88), while the other is electrically connected to the capacitor (82).
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: December 5, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Atsushi Hachisuka, Atsushi Amo, Tatsuo Kasaoka, Shunji Kubo
  • Patent number: 6919256
    Abstract: A first metal film, a first interlayer insulating film, a second metal film, and a second interlayer insulating film are deposited in this order over a silicon nitride film. An opening penetrating the first and second interlayer insulating films and the first and second metal films is created, whereby a contact metal, to hold a to-be-formed lower electrode thereon, is exposed. A metal film is provided to cover the second interlayer insulating film. The opening is filled with the metal film. A main part and the uppermost fin (namely, the fin farthest from a substrate) of a lower electrode, are formed by the same process.
    Type: Grant
    Filed: September 15, 2003
    Date of Patent: July 19, 2005
    Assignee: Renesas Technology Corp.
    Inventors: Kouta Inoue, Tatsuo Kasaoka, Hiroki Shinkawata
  • Patent number: 6798006
    Abstract: A semiconductor device includes a diffusion region in a semiconductor substrate, a gate insulation film on the semiconductor substrate, a gate electrode on the gate insulation film, an interlayer insulation film on the semiconductor substrate covering the gate electrode, and a capacitor on the interlayer insulation film. The capacitor includes a laminated structure made up of a lower electrode, a dielectric film, and an upper electrode. The diffusion region, the gate electrode, and the lower electrode are connected to one another by a common contact in the interlayer insulation film.
    Type: Grant
    Filed: June 6, 2003
    Date of Patent: September 28, 2004
    Assignee: Renesas Technology Corp.
    Inventors: Atsushi Amo, Atsushi Hachisuka, Tatsuo Kasaoka
  • Publication number: 20040147084
    Abstract: A first metal film, a first interlayer insulating film, a second metal film, and a second interlayer insulating film are deposited in this order over a silicon nitride film. An opening penetrating the first and second interlayer insulating films and the first and second metal films is created, whereby a contact metal, to hold a to-be-formed lower electrode thereon, is exposed. A metal film is provided to cover the second interlayer insulating film. The opening is filled with the metal film. A main part and the uppermost fin (namely, the fin farthest from a substrate) of a lower electrode, are formed by the same process.
    Type: Application
    Filed: September 15, 2003
    Publication date: July 29, 2004
    Applicant: Renesas Technology Corp.
    Inventors: Kouta Inoue, Tatsuo Kasaoka, Hiroki Shinkawata
  • Publication number: 20040129963
    Abstract: A semiconductor device comprises a diffusion layer in a semiconductor substrate, a gate insulation film on the semiconductor substrate, a gate electrode on the gate insulation film, an interlayer insulation film on the semiconductor substrate so as to cover the gate electrode, and a capacitor on the interlayer insulation film. The capacitor includes a laminated structure made up of a lower electrode, a dielectric film, and an upper electrode. The diffusion layers, the gate electrode, and the lower electrode are connected to one another by a common contact in the interlayer insulation film.
    Type: Application
    Filed: June 6, 2003
    Publication date: July 8, 2004
    Applicant: Renesas Technology Corp.
    Inventors: Atsushi Amo, Atsushi Hachisuka, Tatsuo Kasaoka