Patents by Inventor Mikako Okada

Mikako Okada 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: 9330942
    Abstract: Miniaturization and high-performance of a semiconductor device are promoted, which has a package on package (POP) structure in which a plurality of semiconductor packages is stacked in a multistage manner. A testing conductive pad for determining the quality of a conduction state of a microcomputer chip and a memory chip is arranged outside a conductive pad for external input/output and thereby the route of a wire that couples the microcomputer chip and the memory chip to the testing conductive pad is reduced in length. Further, the wire that couples the microcomputer chip and the memory chip to the testing conductive pad is coupled to a pad in the outer row among conductive pads in two rows to be coupled to the microcomputer chip.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: May 3, 2016
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Toshikazu Ishikawa, Mikako Okada
  • Publication number: 20140252357
    Abstract: Miniaturization and high-performance of a semiconductor device are promoted, which has a package on package (POP) structure in which a plurality of semiconductor packages is stacked in a multistage manner. A testing conductive pad for determining the quality of a conduction state of a microcomputer chip and a memory chip is arranged outside a conductive pad for external input/output and thereby the route of a wire that couples the microcomputer chip and the memory chip to the testing conductive pad is reduced in length. Further, the wire that couples the microcomputer chip and the memory chip to the testing conductive pad is coupled to a pad in the outer row among conductive pads in two rows to be coupled to the microcomputer chip.
    Type: Application
    Filed: May 20, 2014
    Publication date: September 11, 2014
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventors: Toshikazu ISHIKAWA, Mikako OKADA
  • Patent number: 8766425
    Abstract: Miniaturization and high-performance of a semiconductor device are promoted, which has a package on package (POP) structure in which a plurality of semiconductor packages is stacked in a multistage manner. A testing conductive pad for determining the quality of a conduction state of a microcomputer chip and a memory chip is arranged outside a conductive pad for external input/output and thereby the route of a wire that couples the microcomputer chip and the memory chip to the testing conductive pad is reduced in length. Further, the wire that couples the microcomputer chip and the memory chip to the testing conductive pad is coupled to a pad in the outer row among conductive pads in two rows to be coupled to the microcomputer chip.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: July 1, 2014
    Assignee: Renesas Electronics Corporation
    Inventors: Toshikazu Ishikawa, Mikako Okada
  • Patent number: 8698299
    Abstract: Miniaturization and high-performance of a semiconductor device are promoted, which has a package on package (POP) structure in which a plurality of semiconductor packages is stacked in a multistage manner. A testing conductive pad for determining the quality of a conduction state of a microcomputer chip and a memory chip is arranged outside a conductive pad for external input/output and thereby the route of a wire that couples the microcomputer chip and the memory chip to the testing conductive pad is reduced in length. Further, the wire that couples the microcomputer chip and the memory chip to the testing conductive pad is coupled to a pad in the outer row among conductive pads in two rows to be coupled to the microcomputer chip.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: April 15, 2014
    Assignee: Renesas Electronics Corporation
    Inventors: Toshikazu Ishikawa, Mikako Okada
  • Publication number: 20140070214
    Abstract: Miniaturization and high-performance of a semiconductor device are promoted, which has a package on package (POP) structure in which a plurality of semiconductor packages is stacked in a multistage manner. A testing conductive pad for determining the quality of a conduction state of a microcomputer chip and a memory chip is arranged outside a conductive pad for external input/output and thereby the route of a wire that couples the microcomputer chip and the memory chip to the testing conductive pad is reduced in length. Further, the wire that couples the microcomputer chip and the memory chip to the testing conductive pad is coupled to a pad in the outer row among conductive pads in two rows to be coupled to the microcomputer chip.
    Type: Application
    Filed: November 15, 2013
    Publication date: March 13, 2014
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventors: Toshikazu ISHIKAWA, Mikako OKADA
  • Patent number: 8383456
    Abstract: A multilayer wiring substrate has an upper surface with multiple bonding leads and a lower surface with multiple lands. Multiple wiring layers and insulating layers are alternately formed on the upper surface side and on the lower surface side of the core material of the wiring substrate. The bonding leads are formed of part of the uppermost wiring layer and the lands are formed of part of the lowermost wiring layer. The insulating layers include second insulating layers containing fiber and resin and third insulating layers smaller in fiber content than the second insulating layers. The second insulating layers are formed on the upper and lower surface sides of the core material. The third insulating layers are formed on the upper and lower surface sides of the core material with the second insulating layers in-between. The uppermost and lowermost wiring layers are formed over the third insulating layers.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: February 26, 2013
    Assignee: Renesas Electronics Corporation
    Inventors: Mikako Okada, Toshikazu Ishikawa
  • Publication number: 20120208322
    Abstract: A multilayer wiring substrate has an upper surface with multiple bonding leads and a lower surface with multiple lands. Multiple wiring layers and insulating layers are alternately formed on the upper surface side and on the lower surface side of the core material of the wiring substrate. The bonding leads are formed of part of the uppermost wiring layer and the lands are formed of part of the lowermost wiring layer. The insulating layers include second insulating layers containing fiber and resin and third insulating layers smaller in fiber content than the second insulating layers. The second insulating layers are formed on the upper and lower surface sides of the core material. The third insulating layers are formed on the upper and lower surface sides of the core material with the second insulating layers in-between. The uppermost and lowermost wiring layers are formed over the third insulating layers.
    Type: Application
    Filed: April 5, 2012
    Publication date: August 16, 2012
    Inventors: MIKAKO OKADA, Toshikazu Ishikawa
  • Patent number: 8222738
    Abstract: To provide a semiconductor device with improved reliability. The semiconductor device includes a wiring board, a microcomputer chip flip-chip bonded over the wiring board via gold bumps, a first memory chip laminated over the microcomputer chip, wires for coupling the first memory chip to the wiring board, an underfill material with which a flip-chip coupling portion of the microcomputer chip is filled, and a sealing member for sealing the microcomputer chip and the first memory chip with resin. Further, the corner of a second opening portion of a solder resist film of the wiring board corresponding to the corner of the chip on the air vent side in charging the underfill material is made close to the microcomputer chip, which can improve the wettability and spread of the underfill material at the second opening portion, thus reducing the exposure of leads to the second opening portion, thereby improving the reliability of the semiconductor device.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: July 17, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Yusuke Ota, Michiaki Sugiyama, Toshikazu Ishikawa, Mikako Okada
  • Publication number: 20120153282
    Abstract: Miniaturization and high-performance of a semiconductor device are promoted, which has a package on package (POP) structure in which a plurality of semiconductor packages is stacked in a multistage manner. A testing conductive pad for determining the quality of a conduction state of a microcomputer chip and a memory chip is arranged outside a conductive pad for external input/output and thereby the route of a wire that couples the microcomputer chip and the memory chip to the testing conductive pad is reduced in length. Further, the wire that couples the microcomputer chip and the memory chip to the testing conductive pad is coupled to a pad in the outer row among conductive pads in two rows to be coupled to the microcomputer chip.
    Type: Application
    Filed: March 1, 2012
    Publication date: June 21, 2012
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventors: Toshikazu ISHIKAWA, Mikako OKADA
  • Patent number: 8159057
    Abstract: The mounting height of a semiconductor device is reduced. A wiring substrate has an upper surface with multiple bonding leads formed therein and a lower surface with multiple lands formed therein. This wiring substrate is a multilayer wiring substrate and multiple wiring layers and multiple insulating layers are alternately formed on the upper surface side and on the lower surface side of the core material of the wiring substrate. The bonding leads are formed of part of the uppermost wiring layer and the lands are formed of part of the lowermost wiring layer. The insulating layers include second insulating layers containing fiber and resin and third insulating layers smaller in fiber content than the second insulating layers. The second insulating layers are formed on the upper surface side and on the lower surface side of the core material. The third insulating layers are formed on the upper surface side and on the lower surface side of the core material with the second insulating layers in-between.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: April 17, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Mikako Okada, Toshikazu Ishikawa
  • Patent number: 8159058
    Abstract: Miniaturization and high-performance of a semiconductor device are promoted, which has a package on package (POP) structure in which a plurality of semiconductor packages is stacked in a multistage manner. A testing conductive pad for determining the quality of a conduction state of a microcomputer chip and a memory chip is arranged outside a conductive pad for external input/output and thereby the route of a wire that couples the microcomputer chip and the memory chip to the testing conductive pad is reduced in length. Further, the wire that couples the microcomputer chip and the memory chip to the testing conductive pad is coupled to a pad in the outer row among conductive pads in two rows to be coupled to the microcomputer chip.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: April 17, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Toshikazu Ishikawa, Mikako Okada
  • Publication number: 20110300672
    Abstract: To provide a semiconductor device with improved reliability. The semiconductor device includes a wiring board, a microcomputer chip flip-chip bonded over the wiring board via gold bumps, a first memory chip laminated over the microcomputer chip, wires for coupling the first memory chip to the wiring board, an underfill material with which a flip-chip coupling portion of the microcomputer chip is filled, and a sealing member for sealing the microcomputer chip and the first memory chip with resin. Further, the corner of a second opening portion of a solder resist film of the wiring board corresponding to the corner of the chip on the air vent side in charging the underfill material is made close to the microcomputer chip, which can improve the wettability and spread of the underfill material at the second opening portion, thus reducing the exposure of leads to the second opening portion, thereby improving the reliability of the semiconductor device.
    Type: Application
    Filed: August 18, 2011
    Publication date: December 8, 2011
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventors: Yusuke OTA, Michiaki SUGIYAMA, Toshikazu ISHIKAWA, Mikako OKADA
  • Patent number: 8021932
    Abstract: To provide a semiconductor device with improved reliability. The semiconductor device includes a wiring board, a microcomputer chip flip-chip bonded over the wiring board via gold bumps, a first memory chip laminated over the microcomputer chip, wires for coupling the first memory chip to the wiring board, an underfill material with which a flip-chip coupling portion of the microcomputer chip is filled, and a sealing member for sealing the microcomputer chip and the first memory chip with resin. Further, the corner of a second opening portion of a solder resist film of the wiring board corresponding to the corner of the chip on the air vent side in charging the underfill material is made close to the microcomputer chip, which can improve the wettability and spread of the underfill material at the second opening portion, thus reducing the exposure of leads to the second opening portion, thereby improving the reliability of the semiconductor device.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: September 20, 2011
    Assignee: Renesas Electronics Corporation
    Inventors: Yusuke Ota, Michiaki Sugiyama, Toshikazu Ishikawa, Mikako Okada
  • Publication number: 20090294978
    Abstract: To provide a semiconductor device with improved reliability. The semiconductor device includes a wiring board, a microcomputer chip flip-chip bonded over the wiring board via gold bumps, a first memory chip laminated over the microcomputer chip, wires for coupling the first memory chip to the wiring board, an underfill material with which a flip-chip coupling portion of the microcomputer chip is filled, and a sealing member for sealing the microcomputer chip and the first memory chip with resin. Further, the corner of a second opening portion of a solder resist film of the wiring board corresponding to the corner of the chip on the air vent side in charging the underfill material is made close to the microcomputer chip, which can improve the wettability and spread of the underfill material at the second opening portion, thus reducing the exposure of leads to the second opening portion, thereby improving the reliability of the semiconductor device.
    Type: Application
    Filed: April 27, 2009
    Publication date: December 3, 2009
    Applicant: RENESAS TECHNOLOGY CORP.
    Inventors: Yusuke OTA, Michiaki SUGIYAMA, Toshikazu ISHIKAWA, Mikako OKADA
  • Publication number: 20090294945
    Abstract: The mounting height of a semiconductor device is reduced. A wiring substrate has an upper surface with multiple bonding leads formed therein and a lower surface with multiple lands formed therein. This wiring substrate is a multilayer wiring substrate and multiple wiring layers and multiple insulating layers are alternately formed on the upper surface side and on the lower surface side of the core material of the wiring substrate. The bonding leads are formed of part of the uppermost wiring layer and the lands are formed of part of the lowermost wiring layer. The insulating layers include second insulating layers containing fiber and resin and third insulating layers smaller in fiber content than the second insulating layers. The second insulating layers are formed on the upper surface side and on the lower surface side of the core material. The third insulating layers are formed on the upper surface side and on the lower surface side of the core material with the second insulating layers in-between.
    Type: Application
    Filed: April 15, 2009
    Publication date: December 3, 2009
    Inventors: Mikako Okada, Toshikazu Ishikawa
  • Publication number: 20090065773
    Abstract: Miniaturization and high-performance of a semiconductor device are promoted, which has a package on package (POP) structure in which a plurality of semiconductor packages is stacked in a multistage manner. A testing conductive pad for determining the quality of a conduction state of a microcomputer chip and a memory chip is arranged outside a conductive pad for external input/output and thereby the route of a wire that couples the microcomputer chip and the memory chip to the testing conductive pad is reduced in length. Further, the wire that couples the microcomputer chip and the memory chip to the testing conductive pad is coupled to a pad in the outer row among conductive pads in two rows to be coupled to the microcomputer chip.
    Type: Application
    Filed: September 4, 2008
    Publication date: March 12, 2009
    Inventors: Toshikazu ISHIKAWA, Mikako OKADA