Patents by Inventor Norio Kido

Norio Kido 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: 11029740
    Abstract: There is to provide a power conversion device capable of estimating a junction temperature of a power transistor at a high accuracy. The control device includes a temperature estimation unit and controls the on and off of the power transistor through a driver. The voltage detection circuit detects the inter-terminal voltage of a source and drain terminals during the on-period of the power transistor. The temperature estimation unit previously holds the correlation information between the inter-terminal voltage and inter-terminal current of the source and drain terminals and the junction temperature, and estimates the junction temperature, based on the inter-terminal voltage detected by the voltage detection circuit, the known inter-terminal current, and the correlation information.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: June 8, 2021
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Shunichi Kaeriyama, Norio Kido
  • Patent number: 10546839
    Abstract: An electronic apparatus includes a wiring board including a main surface on which a first wiring and a second wiring are formed, a first semiconductor device mounted on the main surface of the wiring board, and a second semiconductor device mounted on the main surface of the wiring board. Each of the first semiconductor device and the second semiconductor device includes a first semiconductor chip including an insulated gate bipolar transistor, a second semiconductor chip including a diode, a first lead electrically connected to an emitter electrode pad formed on a first front surface of the first semiconductor chip, a second lead electrically connected to an anode electrode pad formed on a second front surface of the second semiconductor chip, and a first terminal electrically connected to a collector electrode formed on a first back surface of the first semiconductor chip.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: January 28, 2020
    Assignee: RENESAS ELECTRONIC CORPORATION
    Inventors: Akira Muto, Norio Kido
  • Publication number: 20190204889
    Abstract: There is to provide a power conversion device capable of estimating a junction temperature of a power transistor at a high accuracy. The control device includes a temperature estimation unit and controls the on and off of the power transistor through a driver. The voltage detection circuit detects the inter-terminal voltage of a source and drain terminals during the on-period of the power transistor. The temperature estimation unit previously holds the correlation information between the inter-terminal voltage and inter-terminal current of the source and drain terminals and the junction temperature, and estimates the junction temperature, based on the inter-terminal voltage detected by the voltage detection circuit, the known inter-terminal current, and the correlation information.
    Type: Application
    Filed: November 13, 2018
    Publication date: July 4, 2019
    Inventors: Shunichi KAERIYAMA, Norio KIDO
  • Publication number: 20190088629
    Abstract: An electronic apparatus includes a wiring board including a main surface on which a first wiring and a second wiring are formed, a first semiconductor device mounted on the main surface of the wiring board, and a second semiconductor device mounted on the main surface of the wiring board. Each of the first semiconductor device and the second semiconductor device includes a first semiconductor chip including an insulated gate bipolar transistor, a second semiconductor chip including a diode, a first lead electrically connected to an emitter electrode pad formed on a first front surface of the first semiconductor chip, a second lead electrically connected to an anode electrode pad formed on a second front surface of the second semiconductor chip, and a first terminal electrically connected to a collector electrode formed on a first back surface of the first semiconductor chip.
    Type: Application
    Filed: September 28, 2018
    Publication date: March 21, 2019
    Inventors: Akira Muto, Norio Kido
  • Patent number: 10217727
    Abstract: For example, a semiconductor device capable of achieving a high performance applicable to an SR motor is provided. The semiconductor device includes a chip mounting portion TAB1 on which a semiconductor chip CHP1 having an IGBT is mounted, and a chip mounting portion TAB2 on which a semiconductor chip CHP2 having a diode is formed. The semiconductor device also includes a lead LD1A electrically connected to an emitter electrode pad EP of the semiconductor chip CHP1 via a clip CLP1, and a lead LD1B electrically connected to an anode electrode pad ADP of the semiconductor chip CHP2 via a clip CLP2. At this time, the chip mounting portion TAB1 is separated electrically from the chip mounting portion TAB2, and the clip CLP1 is separated electrically from the clip CLP2.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: February 26, 2019
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Akira Muto, Norio Kido
  • Publication number: 20170229428
    Abstract: For example, a semiconductor device capable of achieving a high performance applicable to an SR motor is provided. The semiconductor device includes a chip mounting portion TAB1 on which a semiconductor chip CHP1 having an IGBT is mounted, and a chip mounting portion TAB2 on which a semiconductor chip CHP2 having a diode is formed. The semiconductor device also includes a lead LD1A electrically connected to an emitter electrode pad EP of the semiconductor chip CHP1 via a clip CLP1, and a lead LD1B electrically connected to an anode electrode pad ADP of the semiconductor chip CHP2 via a clip CLP2. At this time, the chip mounting portion TAB1 is separated electrically from the chip mounting portion TAB2, and the clip CLP1 is separated electrically from the clip CLP2.
    Type: Application
    Filed: August 25, 2014
    Publication date: August 10, 2017
    Inventors: Akira MUTO, Norio KIDO
  • Patent number: 9129979
    Abstract: It is made for the layout of the mounting wiring at the time of mounting to become efficient by changing the structure of a semiconductor device. A first chip is mounted on a first die pad, and a second chip is also mounted on a second die pad. A first die pad and a second die pad do division structure in parallel to the first side and second side of sealing body 40. As a result, the pin for an output from a first chip and the pin for control of the circuit for a drive can make it able to project from a counter direction, and can set the wiring layout at the time of mounting as the minimum route.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: September 8, 2015
    Assignee: Renesas Electronics Corporation
    Inventors: Nobuya Koike, Atsushi Fujiki, Norio Kido, Yukihiro Sato, Hiroyuki Nakamura
  • Patent number: 8466549
    Abstract: A semiconductor device formed by using semiconductor packages is provided. The semiconductor device includes two semiconductor packages adjacently arranged in opposite directions on an inductive conductor. Terminals of the two semiconductor packages are joined by a third lead. The third lead is arranged substantially in parallel to the inductive conductor. Leads at the joint portions have, for example, a bent structure, and the third lead is arranged to be close to the inductive conductor.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: June 18, 2013
    Assignee: Renesas Electronics Corporation
    Inventors: Kentaro Ochi, Akira Mishima, Takuro Kanazawa, Tetsuo Iijima, Katsuo Ishizaka, Norio Kido
  • Publication number: 20120261825
    Abstract: It is made for the layout of the mounting wiring at the time of mounting to become efficient by changing the structure of a semiconductor device. A first chip is mounted on a first die pad, and a second chip is also mounted on a second die pad. A first die pad and a second die pad do division structure in parallel to the first side and second side of sealing body 40. As a result, the pin for an output from a first chip and the pin for control of the circuit for a drive can make it able to project from a counter direction, and can set the wiring layout at the time of mounting as the minimum route.
    Type: Application
    Filed: June 26, 2012
    Publication date: October 18, 2012
    Inventors: Nobuya KOIKE, Atsushi Fujiki, Norio Kido, Yukihiro Sato, Hiroyuki Nakamura
  • Patent number: 8232629
    Abstract: It is made for the layout of the mounting wiring at the time of mounting to become efficient by changing the structure of a semiconductor device. A first chip is mounted on a first die pad, and a second chip is also mounted on a second die pad. A first die pad and a second die pad do division structure in parallel to the first side and second side of sealing body 40. As a result, the pin for an output from a first chip and the pin for control of the circuit for a drive can make it able to project from a counter direction, and can set the wiring layout at the time of mounting as the minimum route.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: July 31, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Nobuya Koike, Atsushi Fujiki, Norio Kido, Yukihiro Sato, Hiroyuki Nakamura
  • Publication number: 20120012978
    Abstract: A semiconductor device formed by using semiconductor packages is provided. The semiconductor device includes two semiconductor packages adjacently arranged in opposite directions on an inductive conductor. Terminals of the two semiconductor packages are joined by a third lead. the third lead is arranged substantially in parallel to the inductive conductor. Leads at the joint portions have, for example, a bent structure, and the third lead is arranged to be close to the inductive conductor.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 19, 2012
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventors: Kentaro OCHI, Akira Mishima, Takuro Kanazawa, Tetsuo Iijima, Katsuo Ishizaka, Norio Kido
  • Patent number: 8035222
    Abstract: A semiconductor device formed by using semiconductor packages is provided. The semiconductor device includes two semiconductor packages adjacently arranged in opposite directions on an inductive conductor. Terminals of the two semiconductor packages are joined by a third lead. the third lead is arranged substantially in parallel to the inductive conductor. Leads at the joint portions have, for example, a bent structure, and the third lead is arranged to be close to the inductive conductor.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: October 11, 2011
    Assignee: Renesas Electronics Corporation
    Inventors: Kentaro Ochi, Akira Mishima, Takuro Kanazawa, Tetsuo Iijima, Katsuo Ishizaka, Norio Kido
  • Patent number: 7969000
    Abstract: A semiconductor device having a plurality of chips is reduced in size. In HSOP (semiconductor device) for driving a three-phase motor, a first semiconductor chip including a pMISFET and a second semiconductor chip including an nMISFET are mounted over each of a first tab, second tab, and third tab. The drains of the pMISFET and nMISFET over each tab are electrically connected with each other. Thus, two of six MISFETs can be placed over each of three tabs divided in correspondence with the number of phases of the motor, and they can be packaged in one in a compact manner. As a result, the size of the HSOP for driving a three-phase motor, having a plurality of chips can be reduced.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: June 28, 2011
    Assignee: Renesas Electronics Corporation
    Inventors: Yukihiro Sato, Norio Kido, Tatsuhiro Seki, Katsuo Ishizaka, Ichio Shimizu
  • Publication number: 20110084359
    Abstract: A semiconductor device formed by using semiconductor packages is provided. The semiconductor device includes two semiconductor packages adjacently arranged in opposite directions on an inductive conductor. Terminals of the two semiconductor packages are joined by a third lead. the third lead is arranged substantially in parallel to the inductive conductor. Leads at the joint portions have, for example, a bent structure, and the third lead is arranged to be close to the inductive conductor.
    Type: Application
    Filed: December 15, 2010
    Publication date: April 14, 2011
    Inventors: Kentaro OCHI, Akira Mishima, Takuro Kanazawa, Tetsuo Iijima, Katsuo Ishizaka, Norio Kido
  • Patent number: 7872348
    Abstract: A semiconductor device formed by using semiconductor packages is provided. The semiconductor device includes two semiconductor packages adjacently arranged in opposite directions on an inductive conductor. Terminals of the two semiconductor packages are joined by a third lead. the third lead is arranged substantially in parallel to the inductive conductor. Leads at the joint portions have, for example, a bent structure, and the third lead is arranged to be close to the inductive conductor.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: January 18, 2011
    Assignee: Renesas Electronics Corporation
    Inventors: Kentaro Ochi, Akira Mishima, Takuro Kanazawa, Tetsuo Iijima, Katsuo Ishizaka, Norio Kido
  • Publication number: 20100315786
    Abstract: A semiconductor device formed by using semiconductor packages is provided. The semiconductor device includes two semiconductor packages adjacently arranged in opposite directions on an inductive conductor. Terminals of the two semiconductor packages are joined by a third lead. the third lead is arranged substantially in parallel to the inductive conductor. Leads at the joint portions have, for example, a bent structure, and the third lead is arranged to be close to the inductive conductor.
    Type: Application
    Filed: June 9, 2010
    Publication date: December 16, 2010
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventors: Kentaro OCHI, Akira MISHIMA, Takuro KANAZAWA, Tetsuo IIJIMA, Katsuo ISHIZAKA, Norio KIDO
  • Publication number: 20100140718
    Abstract: A semiconductor device having a plurality of chips is reduced in size. In HSOP (semiconductor device) for driving a three-phase motor, a first semiconductor chip including a pMISFET and a second semiconductor chip including an nMISFET are mounted over each of a first tab, second tab, and third tab. The drains of the pMISFET and nMISFET over each tab are electrically connected with each other. Thus, two of six MISFETs can be placed over each of three tabs divided in correspondence with the number of phases of the motor, and they can be packaged in one in a compact manner. As a result, the size of the HSOP for driving a three-phase motor, having a plurality of chips can be reduced.
    Type: Application
    Filed: February 16, 2010
    Publication date: June 10, 2010
    Applicant: RENESAS TECHNOLOGY CORP.
    Inventors: Yukihiro Sato, Norio Kido, Tatsuhiro Seki, Katsuo Ishizaka, Ichio Shimizu
  • Patent number: 7692285
    Abstract: A semiconductor device having a plurality of chips is reduced in size. In HSOP (semiconductor device) for driving a three-phase motor, a first semiconductor chip including a pMISFET and a second semiconductor chip including an nMISFET are mounted over each of a first tab, second tab, and third tab. The drains of the pMISFET and nMISFET over each tab are electrically connected with each other. Thus, two of six MISFETs can be placed over each of three tabs divided in correspondence with the number of phases of the motor, and they can be packaged in one in a compact manner. As a result, the size of the HSOP for driving a three-phase motor, having a plurality of chips can be reduced.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: April 6, 2010
    Assignee: Renesas Technology Corp.
    Inventors: Yukihiro Sato, Norio Kido, Tatsuhiro Seki, Katsuo Ishizaka, Ichio Shimizu
  • Publication number: 20080054422
    Abstract: It is made for the layout of the mounting wiring at the time of mounting to become efficient by changing the structure of a semiconductor device. A first chip is mounted on a first die pad, and a second chip is also mounted on a second die pad. A first die pad and a second die pad do division structure in parallel to the first side and second side of sealing body 40. As a result, the pin for an output from a first chip and the pin for control of the circuit for a drive can make it able to project from a counter direction, and can set the wiring layout at the time of mounting as the minimum route.
    Type: Application
    Filed: August 20, 2007
    Publication date: March 6, 2008
    Inventors: Nobuya KOIKE, Atsushi FUJIKI, Norio KIDO, Yukihiro SATO, Hiroyuki NAKAMURA
  • Publication number: 20070001273
    Abstract: A semiconductor device having a plurality of chips is reduced in size. In HSOP(semiconductor device) for driving a three-phase motor, a first semiconductor chip including a pMISFET and a second semiconductor chip including an nMISFET are mounted over each of a first tab, second tab, and third tab. The drains of the PMISFET and nMISFET over each tab are electrically connected with each other. Thus, two of six MISFETs can be placed over each of three tabs divided in correspondence with the number of phases of the motor, and they can be packaged in one in a compact manner. As a result, the size of the HSOP for driving a three-phase motor, having a plurality of chips can be reduced.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 4, 2007
    Inventors: Yukihiro Sato, Norio Kido, Tatsuhiro Seki, Katsuo Ishizaka, Ichio Shimizu