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).
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Patent number: 9330942Abstract: 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: GrantFiled: May 20, 2014Date of Patent: May 3, 2016Assignee: RENESAS ELECTRONICS CORPORATIONInventors: Toshikazu Ishikawa, Mikako Okada
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Publication number: 20140252357Abstract: 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: ApplicationFiled: May 20, 2014Publication date: September 11, 2014Applicant: RENESAS ELECTRONICS CORPORATIONInventors: Toshikazu ISHIKAWA, Mikako OKADA
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Patent number: 8766425Abstract: 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: GrantFiled: November 15, 2013Date of Patent: July 1, 2014Assignee: Renesas Electronics CorporationInventors: Toshikazu Ishikawa, Mikako Okada
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Patent number: 8698299Abstract: 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: GrantFiled: March 1, 2012Date of Patent: April 15, 2014Assignee: Renesas Electronics CorporationInventors: Toshikazu Ishikawa, Mikako Okada
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Publication number: 20140070214Abstract: 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: ApplicationFiled: November 15, 2013Publication date: March 13, 2014Applicant: RENESAS ELECTRONICS CORPORATIONInventors: Toshikazu ISHIKAWA, Mikako OKADA
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Patent number: 8383456Abstract: 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: GrantFiled: April 5, 2012Date of Patent: February 26, 2013Assignee: Renesas Electronics CorporationInventors: Mikako Okada, Toshikazu Ishikawa
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Publication number: 20120208322Abstract: 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: ApplicationFiled: April 5, 2012Publication date: August 16, 2012Inventors: MIKAKO OKADA, Toshikazu Ishikawa
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Patent number: 8222738Abstract: 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: GrantFiled: August 18, 2011Date of Patent: July 17, 2012Assignee: Renesas Electronics CorporationInventors: Yusuke Ota, Michiaki Sugiyama, Toshikazu Ishikawa, Mikako Okada
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Publication number: 20120153282Abstract: 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: ApplicationFiled: March 1, 2012Publication date: June 21, 2012Applicant: RENESAS ELECTRONICS CORPORATIONInventors: Toshikazu ISHIKAWA, Mikako OKADA
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Patent number: 8159057Abstract: 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: GrantFiled: April 15, 2009Date of Patent: April 17, 2012Assignee: Renesas Electronics CorporationInventors: Mikako Okada, Toshikazu Ishikawa
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Patent number: 8159058Abstract: 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: GrantFiled: September 4, 2008Date of Patent: April 17, 2012Assignee: Renesas Electronics CorporationInventors: Toshikazu Ishikawa, Mikako Okada
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Publication number: 20110300672Abstract: 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: ApplicationFiled: August 18, 2011Publication date: December 8, 2011Applicant: RENESAS ELECTRONICS CORPORATIONInventors: Yusuke OTA, Michiaki SUGIYAMA, Toshikazu ISHIKAWA, Mikako OKADA
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Patent number: 8021932Abstract: 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: GrantFiled: April 27, 2009Date of Patent: September 20, 2011Assignee: Renesas Electronics CorporationInventors: Yusuke Ota, Michiaki Sugiyama, Toshikazu Ishikawa, Mikako Okada
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Publication number: 20090294978Abstract: 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: ApplicationFiled: April 27, 2009Publication date: December 3, 2009Applicant: RENESAS TECHNOLOGY CORP.Inventors: Yusuke OTA, Michiaki SUGIYAMA, Toshikazu ISHIKAWA, Mikako OKADA
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Publication number: 20090294945Abstract: 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: ApplicationFiled: April 15, 2009Publication date: December 3, 2009Inventors: Mikako Okada, Toshikazu Ishikawa
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Publication number: 20090065773Abstract: 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: ApplicationFiled: September 4, 2008Publication date: March 12, 2009Inventors: Toshikazu ISHIKAWA, Mikako OKADA