Patents by Inventor Kiyotaka Imai

Kiyotaka Imai 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: 20220199463
    Abstract: A method of manufacturing a semiconductor device includes: forming a first film containing carbon over a silicon nitride film and a first conductive film; forming a first silicon oxide film surrounding the first film over the silicon nitride film and the first conductive film; removing the first film to form, in the first silicon oxide film, a first opening that exposes at least a part of the silicon nitride film and at least a part of the first conductive film; and forming a second conductive film on and in contact with the first conductive film in the first opening.
    Type: Application
    Filed: March 15, 2022
    Publication date: June 23, 2022
    Inventors: Shimpei YAMAGUCHI, Kiyotaka IMAI, Atsushi TSUBOI
  • Patent number: 11315789
    Abstract: Described herein is a method of bonding and/or debonding substrates. In one embodiment, at least one of the surfaces of the substrates to be bonded is comprised of an oxide. In one embodiment, the surfaces of both substrates comprise an oxide. A wet etch may then be utilized to debond the substrates by etching away the layers that have been bonded. In one embodiment, a fusion bonding process is utilized to bond two substrates, at least one substrate having a silicon oxide surface. In one exemplary etch, a dilute hydrofluoric (DHF) etch is utilized to etch the bonded silicon oxide surface, allowing for two bonded substrates to be debonded. In another embodiment, the silicon oxide may be a low density silicon oxide. In one embodiment, both substrates may have a surface layer of the low density silicon oxide which may be fusion bonded together.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: April 26, 2022
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Kiyotaka Imai, Hirokazu Aizawa, Hiroshi Maeda, Kaoru Maekawa, Yuji Mimura, Harunobu Suenaga
  • Publication number: 20200343092
    Abstract: Described herein is a method of bonding and/or debonding substrates. In one embodiment, at least one of the surfaces of the substrates to be bonded is comprised of an oxide. In one embodiment, the surfaces of both substrates comprise an oxide. A wet etch may then be utilized to debond the substrates by etching away the layers that have been bonded. In one embodiment, a fusion bonding process is utilized to bond two substrates, at least one substrate having a silicon oxide surface. In one exemplary etch, a dilute hydrofluoric (DHF) etch is utilized to etch the bonded silicon oxide surface, allowing for two bonded substrates to be debonded. In another embodiment, the silicon oxide may be a low density silicon oxide. In one embodiment, both substrates may have a surface layer of the low density silicon oxide which may be fusion bonded together.
    Type: Application
    Filed: September 17, 2019
    Publication date: October 29, 2020
    Inventors: Kiyotaka Imai, Hirokazu Aizawa, Hiroshi Maeda, Kaoru Maekawa, Yuji Mimura, Harunobu Suenaga
  • Patent number: 10644441
    Abstract: A cable according to the present invention comprising: a connector to be connected to a subject device; a bundle of electric wires for supplying signals and/or power to the connector; and a holding member for holding the connector and the electric wires, the connector and the electric wires being connected inside the holding member, a direction of the connector extending to the outside from the holding member being same with a direction of the electric wire being drawn out to the outside from the holding member.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: May 5, 2020
    Assignee: HORIZON CO., LTD.
    Inventors: Kiyotaka Imai, Yasuhiro Imai, Sergii Leontiev
  • Patent number: 10536401
    Abstract: A communication device has a configuration including a data analysis unit 1, a communication monitoring unit 2, and a management information transmission unit 3. The data analysis unit 1 extracts predetermined information from each of a plurality of packets input to the own device, analyzes the predetermined information of the plurality of packets, and generates information relating to a characteristic of each flow of the packets, as flow management information. The communication monitoring unit 2 detects that an abnormality occurs in communication of packets in a communication network to which the own device is connected. When the abnormality detection unit 2 detects the abnormality, the management information transmission unit 3 transmits predetermined information already extracted from a predetermined packet input before the detection of the abnormality, as information for generating the flow management information expected to be generated by the own device, to a standby-system device.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: January 14, 2020
    Assignee: NEC CORPORATION
    Inventor: Kiyotaka Imai
  • Patent number: 10340643
    Abstract: A charging connector comprising: a pair of power supply terminals for pinching power supply terminals of a Type-C plug connector complying with the USB connector standard from both sides, and a pair of grounding terminals and for pinching qrounding terminals of the plug connector from both sides; wherein the power supply terminals and the grounding terminals are configured by fork terminals.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: July 2, 2019
    Assignee: HORIZON CO., LTD.
    Inventors: Kiyotaka Imai, Yasuhiro Imai, Sergii Leontiev
  • Publication number: 20180366889
    Abstract: A charging connector comprising, a pair of power supply terminals for pinching power supply terminals of a Type-C plug connector complying with the USB connector standard from both sides, and a pair of grounding terminals and for pinching grounding terminals of the plug connector from both sides, wherein the power supply terminals and the grounding terminals are configured by fork terminals
    Type: Application
    Filed: August 18, 2016
    Publication date: December 20, 2018
    Inventors: Kiyotaka IMAI, Yasuhiro IMAI, Sergii LEONTIEV
  • Publication number: 20180351291
    Abstract: A cable according to the present invention comprising: a connector to be connected to a subject device; a bundle of electric wires for supplying signals and/or power to the connector; and a holding member for holding the connector and the electric wires, the connector and the electric wires being connected inside the holding member, a direction of the connector extending to the outside from the holding member being same with a direction of the electric wire being drawn out to the outside from the holding member.
    Type: Application
    Filed: May 31, 2018
    Publication date: December 6, 2018
    Inventors: Kiyotaka IMAI, Yasuhiro IMAI, Sergii LEONTIEV
  • Patent number: 9893187
    Abstract: A method for fabricating a fin field effect transistor (finFET) device with a strained channel. During fabrication, after the fin is formed, a dummy gate is deposited on the fin, and processed, e.g., by plasma doping and annealing, to cause stress in the dummy gate. Deep source drain (SD) recesses are formed, resulting in strain in the channel, and SD structures are formed to anchor the ends of the fin. The dummy gate is then removed.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: February 13, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jorge A. Kittl, Chris Bowen, Kiyotaka Imai, Mark S. Rodder
  • Publication number: 20170345932
    Abstract: A method for fabricating a fin field effect transistor (finFET) device with a strained channel. During fabrication, after the fin is formed, a dummy gate is deposited on the fin, and processed, e.g., by plasma doping and annealing, to cause stress in the dummy gate. Deep source drain (SD) recesses are formed, resulting in strain in the channel, and SD structures are formed to anchor the ends of the fin. The dummy gate is then removed.
    Type: Application
    Filed: November 2, 2016
    Publication date: November 30, 2017
    Inventors: Jorge A. Kittl, Chris Bowen, Kiyotaka Imai, Mark S. Rodder
  • Patent number: 9812816
    Abstract: A connector comprises: contacts disposed in a row so as to be mutually parallel; a metal case that comprises one surface which is parallel to the direction of disposition of the contacts and two surfaces which are perpendicular with respect to the direction of disposition of the contacts and sandwich the ends of the disposition of the contacts, and that arranged while kept from contact with the contacts; and a synthetic-resin insulator that is formed so as to encase the contacts and the metal case and that exposes part of the contacts and part of the metal case as external contact points.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: November 7, 2017
    Assignee: HORIZON CO., LTD.
    Inventors: Kiyotaka Imai, Yoichiro Hijikuro
  • Publication number: 20170237603
    Abstract: A communication device has a configuration including a data analysis unit 1, a communication monitoring unit 2, and a management information transmission unit 3. The data analysis unit 1 extracts predetermined information from each of a plurality of packets input to the own device, analyzes the predetermined information of the plurality of packets, and generates information relating to a characteristic of each flow of the packets, as flow management information. The communication monitoring unit 2 detects that an abnormality occurs in communication of packets in a communication network to which the own device is connected. When the abnormality detection unit 2 detects the abnormality, the management information transmission unit 3 transmits predetermined information already extracted from a predetermined packet input before the detection of the abnormality, as information for generating the flow management information expected to be generated by the own device, to a standby-system device.
    Type: Application
    Filed: August 17, 2015
    Publication date: August 17, 2017
    Inventor: Kiyotaka IMAI
  • Publication number: 20170033504
    Abstract: A connector comprises: contacts disposed in a row so as to be mutually parallel; a metal case that comprises one surface which is parallel to the direction of disposition of the contacts and two surfaces which are perpendicular with respect to the direction of disposition of the contacts and sandwich the ends of the disposition of the contacts, and that arranged while kept from contact with the contacts; and a synthetic-resin insulator that is formed so as to encase the contacts and the metal case and that exposes part of the contacts and part of the metal case as external contact points.
    Type: Application
    Filed: July 30, 2014
    Publication date: February 2, 2017
    Inventors: Kiyotaka IMAI, Yoichiro HIJIKURO
  • Patent number: 9153664
    Abstract: A method for fabricating a semiconductor device is provided, which includes forming a screen layer on a substrate, the screen layer including a first portion doped with a first type impurity, forming a first undoped semiconductor layer on the screen layer, forming a gate structure on the first semiconductor layer, forming a first amorphous region on both sides of the gate structure in the first semiconductor layer, and re-crystallizing the first amorphous region through performing a first heat treatment of the first amorphous region.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: October 6, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kiyotaka Imai, Young-Gwon Kim, Shigenobu Maeda, Soon-Chul Hwang
  • Publication number: 20150118817
    Abstract: A method for fabricating a semiconductor device is provided, which includes forming a screen layer on a substrate, the screen layer including a first portion doped with a first type impurity, forming a first undoped semiconductor layer on the screen layer, forming a gate structure on the first semiconductor layer, forming a first amorphous region on both sides of the gate structure in the first semiconductor layer, and re-crystallizing the first amorphous region through performing a first heat treatment of the first amorphous region.
    Type: Application
    Filed: May 23, 2014
    Publication date: April 30, 2015
    Inventors: Kiyotaka IMAI, Young-Gwon KIM, Shigenobu MAEDA, Soon-Chul HWANG
  • Patent number: 8389350
    Abstract: A method of manufacturing N-type MOSFET includes: implanting a p-type dopant into in a surface layer of a semiconductor substrate to form a channel region; forming a gate insulating film including High-k material and a gate electrode on said channel region; implanting a p-type dopant into both ends of said channel region in an inner portion of said semiconductor substrate to form halo regions; implanting a p-type dopant into both ends of said channel region in a surface layer of said semiconductor substrate to form extension regions. One of said step of forming said channel region and said step of forming halo regions includes: implanting C into one of said channel region and said halo regions. An inclusion amount of said High-k material is an amount that increase of a threshold voltage caused by said High-k material being included in said gate insulating film compensates for decrease of said threshold voltage caused by said C being implanted.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: March 5, 2013
    Assignee: Renesas Electronics Corporation
    Inventors: Akihito Sakakidani, Kiyotaka Imai
  • Publication number: 20120007194
    Abstract: A method of manufacturing N-type MOSFET includes: implanting a p-type dopant into in a surface layer of a semiconductor substrate to form a channel region; forming a gate insulating film including High-k material and a gate electrode on said channel region; implanting a p-type dopant into both ends of said channel region in an inner portion of said semiconductor substrate to form halo regions; implanting a p-type dopant into both ends of said channel region in a surface layer of said semiconductor substrate to form extension regions. One of said step of forming said channel region and said step of forming halo regions includes: implanting C into one of said channel region and said halo regions. An inclusion amount of said High-k material is an amount that increase of a threshold voltage caused by said High-k material being included in said gate insulating film compensates for decrease of said threshold voltage caused by said C being implanted.
    Type: Application
    Filed: July 7, 2011
    Publication date: January 12, 2012
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventors: Akihito SAKAKIDANI, Kiyotaka IMAI
  • Publication number: 20100224914
    Abstract: Provided is a semiconductor device including: a first n-channel fin-type field effect transistor formed on a first crystal plane; and a second n-channel fin-type field effect transistor formed on the first crystal plane and having a gate length longer than that of the first n-channel fin-type field effect transistor. A side surface of a fin of the first n-channel fin-type field effect transistor and a side surface of a fin of the second n-channel fin-type field effect transistor are both formed on a second crystal plane having a carrier mobility lower than that of the first crystal plane. The width of the fin of the second n-channel fin-type field effect transistor is greater than the width of the fin of the first n-channel fin-type field effect transistor.
    Type: Application
    Filed: March 2, 2010
    Publication date: September 9, 2010
    Applicant: NEC ELECTRONICS CORPORATION
    Inventors: Toshiyuki IWAMOTO, Gen TSUTSUI, Kiyotaka IMAI
  • Patent number: 7759744
    Abstract: A semiconductor device 100 includes a silicon substrate 102, an N-type MOSFET 118 including a first high dielectric constant film 111 and a polycrystalline silicon film 114 on the silicon substrate 102, and a P-type MOSFET 120 including a second high dielectric constant film 12 and a polycrystalline silicon film 114 juxtaposed to N-type MOSFET 118 on the silicon substrate 102. The second high dielectric constant film 112 is formed to have the film thickness thinner than the film thickness of the first high dielectric constant film 111. The first high dielectric constant film 111 and the second high dielectric constant film 112 contains one or more element(s) selected from Hf and Zr.
    Type: Grant
    Filed: May 16, 2005
    Date of Patent: July 20, 2010
    Assignees: NEC Electronics Corporation, NEC Corporation
    Inventors: Naohiko Kimizuka, Kiyotaka Imai, Yuri Masuoka, Toshiyuki Iwamoto, Motofumi Saitoh, Hirohito Watanabe, Masayuki Terai
  • Patent number: D751989
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: March 22, 2016
    Assignee: HORIZON CO., LTD
    Inventor: Kiyotaka Imai