Patents by Inventor Nobuyoshi Maejima

Nobuyoshi Maejima 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: 8218328
    Abstract: To provide a technique that can improve the reliability of coupling between a package with a PA module and a mounting board in mounting the package over the mounting board. The width of a back conductor pattern is made smaller than the width of each of back terminals. Specifically, for example, the back terminals are arranged in the X direction. The back terminals arranged in parallel to the X direction are coupled together by the back conductor pattern. At this time, the coupling direction (coupling line direction) of the back conductor pattern is the X direction. Taking into consideration the Y direction orthogonal to (intersecting) the X direction, the width of the back conductor pattern in the Y direction is made smaller than the width of each of the back terminals in the Y direction.
    Type: Grant
    Filed: January 13, 2010
    Date of Patent: July 10, 2012
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Nobuyoshi Maejima, Ryota Sato
  • Patent number: 7962105
    Abstract: A technique is provided for achieving reduction in size of an electronic device with a power amplifier circuit, while enhancing the performance of the electronic device. An RF power module for a mobile communication device includes first and second semiconductor chips, a passive component, and first and second integrated passive components, which are mounted over a wiring board. In the first semiconductor chip, MISFET elements constituting power amplifier circuits for the GSM 900 and for the DCS 1800 are formed, and a control circuit is also formed. In the first integrated passive component, a low pass filter circuit for the GSM 900 is formed, and in the second integrated passive component, a low pass filter circuit for the DCS 1800 is formed. In the second semiconductor chip, antenna switch circuits for the GSM 900 and DCS 1800 are formed. Over the upper surface of the wiring board, the second semiconductor chip is disposed next to the first semiconductor chip between the integrated passive components.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: June 14, 2011
    Assignee: Renesas Electronics Corporation
    Inventors: Yusuke Sato, Nobuyoshi Maejima, Tomoaki Kudaishi, Shinji Moriyama, Naoki Kuroda, Ryota Sato, Masashi Okano
  • Publication number: 20100182755
    Abstract: To provide a technique that can improve the reliability of coupling between a package with a PA module and a mounting board in mounting the package over the mounting board. The width of a back conductor pattern is made smaller than the width of each of back terminals. Specifically, for example, the back terminals are arranged in the X direction. The back terminals arranged in parallel to the X direction are coupled together by the back conductor pattern. At this time, the coupling direction (coupling line direction) of the back conductor pattern is the X direction. Taking into consideration the Y direction orthogonal to (intersecting) the X direction, the width of the back conductor pattern in the Y direction is made smaller than the width of each of the back terminals in the Y direction.
    Type: Application
    Filed: January 13, 2010
    Publication date: July 22, 2010
    Inventors: Nobuyoshi MAEJIMA, Ryota SATO
  • Publication number: 20100178879
    Abstract: A technique is provided for achieving reduction in size of an electronic device with a power amplifier circuit, while enhancing the performance of the electronic device. An RF power module for a mobile communication device includes first and second semiconductor chips, a passive component, and first and second integrated passive components, which are mounted over a wiring board. In the first semiconductor chip, MISFET elements constituting power amplifier circuits for the GSM 900 and for the DCS 1800 are formed, and a control circuit is also formed. In the first integrated passive component, a low pass filter circuit for the GSM 900 is formed, and in the second integrated passive component, a low pass filter circuit for the DCS 1800 is formed. In the second semiconductor chip, antenna switch circuits for the GSM 900 and DCS 1800 are formed. Over the upper surface of the wiring board, the second semiconductor chip is disposed next to the first semiconductor chip between the integrated passive components.
    Type: Application
    Filed: March 24, 2010
    Publication date: July 15, 2010
    Applicant: RENESAS TECHNOLOGY CORP.
    Inventors: Yusuke Sato, Nobuyoshi Maejima, Tomoaki Kudaishi, Shinji Moriyama, Naoki Kuroda, Ryota Sato, Masashi Okano
  • Patent number: 7706756
    Abstract: A technique is provided for achieving reduction in size of an electronic device with a power amplifier circuit, while enhancing the performance of the electronic device. An RF power module for a mobile communication device includes first and second semiconductor chips, a passive component, and first and second integrated passive components, which are mounted over a wiring board. In the first semiconductor chip, MISFET elements constituting power amplifier circuits for the GSM 900 and for the DCS 1800 are formed, and a control circuit is also formed. In the first integrated passive component, a low pass filter circuit for the GSM 900 is formed, and in the second integrated passive component, a low pass filter circuit for the DCS 1800 is formed. In the second semiconductor chip, antenna switch circuits for the GSM 900 and DCS 1800 are formed. Over the upper surface of the wiring board, the second semiconductor chip is disposed next to the first semiconductor chip between the integrated passive components.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: April 27, 2010
    Assignee: Renesas Technology Corp.
    Inventors: Yusuke Sato, Nobuyoshi Maejima, Tomoaki Kudaishi, Shinji Moriyama, Naoki Kuroda, Ryota Sato, Masashi Okano
  • Patent number: 7468294
    Abstract: A semiconductor device comprising semiconductor chips each formed with plural pads at the main surface, chip parts each formed with connection terminals at both ends thereof, a module substrate on which the semiconductor chips and the chip parts are mounted, solder connection portions for connecting the chip parts and the substrate terminals of the module substrate by soldering, gold wires for connecting the pads of the semiconductor chips and corresponding substrate terminals of the module substrate, and a sealing portion formed with a low elasticity resin such as an insulative silicone resin or a low elasticity epoxy resin for covering the semiconductor chips, chip parts, solder connection portions and gold wires which prevents flow out of the solder in the solder connection portion by re-melting thereby preventing short-circuit.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: December 23, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Masashi Yamaura, Hirokazu Nakajima, Nobuyoshi Maejima, Mikio Negishi, Tomio Yamada, Tomomichi Koizumi, Tsuneo Endoh
  • Publication number: 20070210866
    Abstract: A technique is provided for achieving reduction in size of an electronic device with a power amplifier circuit, while enhancing the performance of the electronic device. An RF power module for a mobile communication device includes first and second semiconductor chips, a passive component, and first and second integrated passive components, which are mounted over a wiring board. In the first semiconductor chip, MISFET elements constituting power amplifier circuits for the GSM 900 and for the DCS 1800 are formed, and a control circuit is also formed. In the first integrated passive component, a low pass filter circuit for the GSM 900 is formed, and in the second integrated passive component, a low pass filter circuit for the DCS 1800 is formed. In the second semiconductor chip, antenna switch circuits for the GSM 900 and DCS 1800 are formed. Over the upper surface of the wiring board, the second semiconductor chip is disposed next to the first semiconductor chip between the integrated passive components.
    Type: Application
    Filed: January 24, 2007
    Publication date: September 13, 2007
    Inventors: Yusuke Sato, Nobuyoshi Maejima, Tomoaki Kudaishi, Shinji Moriyama, Naoki Kuroda, Ryota Sato, Masashi Okano
  • Publication number: 20050082683
    Abstract: A semiconductor device comprising semiconductor chips each formed with plural pads at the main surface, chip parts each formed with connection terminals at both ends thereof, a module substrate on which the semiconductor chips and the chip parts are mounted, solder connection portions for connecting the chip parts and the substrate terminals of the module substrate by soldering, gold wires for connecting the pads of the semiconductor chips and corresponding substrate terminals of the module substrate, and a sealing portion formed with a low elasticity resin such as an insulative silicone resin or a low elasticity epoxy resin for covering the semiconductor chips, chip parts, solder connection portions and gold wires which prevents flow out of the solder in the solder connection portion by re-melting thereby preventing short-circuit.
    Type: Application
    Filed: November 10, 2004
    Publication date: April 21, 2005
    Inventors: Masashi Yamaura, Hirokazu Nakajima, Nobuyoshi Maejima, Mikio Negishi, Tomio Yamada, Tomomichi Koizumi, Tsuneo Endoh
  • Patent number: 6831360
    Abstract: A semiconductor device comprising semiconductor chips each formed with plural pads at the main surface, chip parts each formed with connection terminals at both ends thereof, a module substrate on which the semiconductor chips and the chip parts are mounted, solder connection portions for connecting the chip parts and the substrate terminals of the module substrate by soldering, gold wires for connecting the pads of the semiconductor chips and corresponding substrate terminals of the module substrate, and a sealing portion formed with a low elasticity resin such as an insulative silicone resin or a low elasticity epoxy resin for covering the semiconductor chips, chip parts, solder connection portions and gold wires which prevents flow out of the solder in the solder connection portion by re-melting thereby preventing short-circuit.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: December 14, 2004
    Assignee: Renesas Technology Corp.
    Inventors: Masashi Yamaura, Hirokazu Nakajima, Nobuyoshi Maejima, Mikio Negishi, Tomio Yamada, Tomomichi Koizumi, Tsuneo Endoh
  • Patent number: 6710263
    Abstract: In a semiconductor device, the likely occurrence of cracking of a ceramic substrate, and the consequential disconnection of internal layer wiring, due to thermal changes suffered when the semiconductor device is mounted on external wiring boards having different thermal expansion is prevented. The semiconductor device has a ceramic substrate, a wiring pattern formed on a first principal plane and having mounted semiconductor components, an external electrode portion formed on a second principal plane and connected to an external circuit, internal layer wiring formed inside said ceramic substrate to electrically connect said wiring pattern and said external electrode portion via through-hole wiring, and semiconductor components and a resin layer covering said semiconductor components, wherein the internal layer wiring is formed internally with respect to the side of said ceramic substrate with a clearance of at least 0.05 mm.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: March 23, 2004
    Assignees: Renesas Technology Corporation, Hitachi Tohbu Semiconductors, Ltd.
    Inventors: Toshiyuki Kobayashi, Yasutoshi Kurihara, Takumi Ueno, Nobuyoshi Maejima, Hirokazu Nakajima, Tomio Yamada, Tsuneo Endoh
  • Publication number: 20020089052
    Abstract: A semiconductor device comprising semiconductor chips each formed with plural pads at the main surface, chip parts each formed with connection terminals at both ends thereof, a module substrate on which the semiconductor chips and the chip parts are mounted, solder connection portions for connecting the chip parts and the substrate terminals of the module substrate by soldering, gold wires for connecting the pads of the semiconductor chips and corresponding substrate terminals of the module substrate, and a sealing portion formed with a low elasticity resin such as an insulative silicone resin or a low elasticity epoxy resin for covering the semiconductor chips, chip parts, solder connection portions and gold wires which prevents flow out of the solder in the solder connection portion by re-melting thereby preventing short-circuit.
    Type: Application
    Filed: December 19, 2001
    Publication date: July 11, 2002
    Inventors: Masashi Yamaura, Hirokazu Nakajima, Nobuyoshi Maejima, Mikio Negishi, Tomio Yamada, Tomomichi Koizumi, Tsuneo Endoh
  • Publication number: 20010023983
    Abstract: Supply of a semiconductor device capable of preventing the likely occurrence of cracking of a ceramic substrate, and the consequential disconnection of internal layer wiring, due to the thermal changes suffered when the semiconductor device is mounted on external wiring boards different in thermal expansion coefficient.
    Type: Application
    Filed: February 23, 2001
    Publication date: September 27, 2001
    Inventors: Toshiyuki Kobayashi, Yasutoshi Kurihara, Takumi Ueno, Nobuyoshi Maejima, Hirokazu Nakajima, Tomio Yamada, Tsuneo Endoh