Patents by Inventor Kan Shimizu
Kan Shimizu 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: 10593405Abstract: According to one embodiment, a semiconductor memory device includes: a word line; a first memory cell; a first circuit; and a second circuit. The first memory cell is connected to the word line. The first circuit generates a first voltage having a waveform including a first time period during which a voltage value increases with time and a second time period during which the voltage value decreases with time, and applies the generated first voltage to the word line. The second circuit measures first time from a first timing when a state of the first memory cell changes according to the first voltage to a second timing when the state of the first memory cell changes according to the first voltage after the first timing. The second circuit determines first data stored in the first memory cell on the basis of the measured first time.Type: GrantFiled: August 13, 2018Date of Patent: March 17, 2020Assignee: Toshiba Memory CorporationInventors: Ryuichi Fujimoto, Kan Shimizu, Shigehito Saigusa, Motoki Nagata, Yumi Takada, Hitoshi Shiga, Makoto Morimoto
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Patent number: 10586823Abstract: It is possible to reduce resistance variations of a member connecting a through-silicon via to a line and improve wiring reliability. A hole through which the through-silicon via is to be stretched is created and an over-etching process is carried out on a wiring layer including the line. Then, by embedding copper in the hole, the through-silicon via made of the copper can be created. After the through-silicon via has been connected to the line made of aluminum through the member which is a connection area, the connection area is alloyed in a thermal treatment in order to electrically connect the through-silicon via to the line. Thus, it is possible to reduce variations of a resistance between the through-silicon via and the line and also improve wiring reliability as well. The present technology can be applied to a semiconductor device and a method for manufacturing the semiconductor device.Type: GrantFiled: January 4, 2018Date of Patent: March 10, 2020Assignee: SONY CORPORATIONInventors: Kan Shimizu, Keishi Inoue
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Patent number: 10504967Abstract: A light emitting element and display device are disclosed. In one example, a light emitting element includes a first electrode formed on a base body. A first insulation layer is formed on the base body and the first electrode and has an aperture portion in which a part of the first electrode is exposed. A second insulation layer is formed on the first insulation layer and has a protruding end portion protruding from the aperture portion. A third insulation layer is formed on the second insulation layer and has an end portion recessed from the protruding end portion. A charge injection/transport layer is formed over the second insulation layer and the third insulation layer. An organic layer includes a light emitting layer, and a second electrode formed on the organic layer. At least a part of the charge injection/transport layer is discontinuous at the protruding end portion.Type: GrantFiled: December 14, 2018Date of Patent: December 10, 2019Assignee: Sony CorporationInventor: Kan Shimizu
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Publication number: 20190326344Abstract: There is provided semiconductor devices and methods of forming the same, the semiconductor devices including: a first semiconductor element having a first electrode; a second semiconductor element having a second electrode; a Sn-based micro-solder bump formed on the second electrode; and a concave bump pad including the first electrode opposite to the micro-solder bump, where the first electrode is connected to the second electrode via the micro-solder bump and the concave bump pad.Type: ApplicationFiled: July 3, 2019Publication date: October 24, 2019Applicant: Sony CorporationInventors: Satoru WAKIYAMA, Naoki JYO, Kan SHIMIZU, Toshihiko HAYASHI, Takuya NAKAMURA
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Publication number: 20190295649Abstract: According to one embodiment, a semiconductor memory device includes: a word line; a first memory cell; a first circuit; and a second circuit. The first memory cell is connected to the word line. The first circuit generates a first voltage having a waveform including a first time period during which a voltage value increases with time and a second time period during which the voltage value decreases with time, and applies the generated first voltage to the word line. The second circuit measures first time from a first timing when a state of the first memory cell changes according to the first voltage to a second timing when the state of the first memory cell changes according to the first voltage after the first timing. The second circuit determines first data stored in the first memory cell on the basis of the measured first time.Type: ApplicationFiled: August 13, 2018Publication date: September 26, 2019Applicant: Toshiba Memory CorporationInventors: Ryuichi FUJIMOTO, Kan SHIMIZU, Shigehito SAIGUSA, Motoki NAGATA, Yumi TAKADA, Hitoshi SHIGA, Makoto MORIMOTO
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Publication number: 20190148463Abstract: A light emitting element and display device are disclosed. In one example, a light emitting element includes a first electrode formed on a base body. A first insulation layer is formed on the base body and the first electrode and has an aperture portion in which a part of the first electrode is exposed. A second insulation layer is formed on the first insulation layer and has a protruding end portion protruding from the aperture portion. A third insulation layer is formed on the second insulation layer and has an end portion recessed from the protruding end portion. A charge injection/transport layer is formed over the second insulation layer and the third insulation layer. An organic layer includes a light emitting layer, and a second electrode formed on the organic layer. At least a part of the charge injection/transport layer is discontinuous at the protruding end portion.Type: ApplicationFiled: December 14, 2018Publication date: May 16, 2019Inventor: Kan Shimizu
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Patent number: 10199435Abstract: A light emitting element and display device are disclosed. In one example, a light emitting element includes a first electrode formed on a base body. A first insulation layer is formed on the base body and the first electrode and has an aperture portion in which a part of the first electrode is exposed. A second insulation layer is formed on the first insulation layer and has a protruding end portion protruding from the aperture portion. A third insulation layer is formed on the second insulation layer and has an end portion recessed from the protruding end portion. A charge injection/transport layer is formed over the second insulation layer and the third insulation layer. An organic layer includes a light emitting layer, and a second electrode formed on the organic layer. At least a part of the charge injection/transport layer is discontinuous at the protruding end portion.Type: GrantFiled: March 18, 2016Date of Patent: February 5, 2019Assignee: Sony CorporationInventor: Kan Shimizu
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Publication number: 20180308891Abstract: An imaging device includes a first semiconductor element including at least one bump pad that has a concave shape. The at least one bump pad includes a first metal layer and a second metal layer on the first metal layer. The imaging device includes a second semiconductor element including at least one electrode. The imaging device includes a microbump electrically connecting the at least one bump pad to the at least one electrode. The microbump includes a diffused portion of the second metal layer, and first semiconductor element or the second semiconductor element includes a pixel unit.Type: ApplicationFiled: October 7, 2016Publication date: October 25, 2018Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventors: Satoru WAKIYAMA, Kan SHIMIZU, Toshihiko HAYASHI, Takuya NAKAMURA, Naoki JYO
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Publication number: 20180145115Abstract: A light emitting element and display device are disclosed. In one example, a light emitting element includes a first electrode formed on a base body. A first insulation layer is formed on the base body and the first electrode and has an aperture portion in which a part of the first electrode is exposed. A second insulation layer is formed on the first insulation layer and has a protruding end portion protruding from the aperture portion. A third insulation layer is formed on the second insulation layer and has an end portion recessed from the protruding end portion. A charge injection/transport layer is formed over the second insulation layer and the third insulation layer. An organic layer includes a light emitting layer, and a second electrode formed on the organic layer. At least a part of the charge injection/transport layer is discontinuous at the protruding end portion.Type: ApplicationFiled: March 18, 2016Publication date: May 24, 2018Inventor: Kan Shimizu
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Publication number: 20180130842Abstract: It is possible to reduce resistance variations of a member connecting a through-silicon via to a line and improve wiring reliability. A hole through which the through-silicon via is to be stretched is created and an over-etching process is carried out on a wiring layer including the line. Then, by embedding copper in the hole, the through-silicon via made of the copper can be created. After the through-silicon via has been connected to the line made of aluminum through the member which is a connection area, the connection area is alloyed in a thermal treatment in order to electrically connect the through-silicon via to the line. Thus, it is possible to reduce variations of a resistance between the through-silicon via and the line and also improve wiring reliability as well. The present technology can be applied to a semiconductor device and a method for manufacturing the semiconductor device.Type: ApplicationFiled: January 4, 2018Publication date: May 10, 2018Inventors: Kan Shimizu, Keishi Inoue
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Patent number: 9865639Abstract: It is possible to reduce resistance variations of a member connecting a through-silicon via to a line and improve wiring reliability. A hole through which the through-silicon via is to be stretched is created and an over-etching process is carried out on a wiring layer including the line. Then, by embedding copper in the hole, the through-silicon via made of the copper can be created. After the through-silicon via has been connected to the line made of aluminum through the member which is a connection area, the connection area is alloyed in a thermal treatment in order to electrically connect the through-silicon via to the line. Thus, it is possible to reduce variations of a resistance between the through-silicon via and the line and also improve wiring reliability as well. The present technology can be applied to a semiconductor device and a method for manufacturing the semiconductor device.Type: GrantFiled: March 1, 2016Date of Patent: January 9, 2018Assignee: Sony CorporationInventors: Kan Shimizu, Keishi Inoue
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Publication number: 20170053960Abstract: There is provided semiconductor devices and methods of forming the same, the semiconductor devices including: a first semiconductor element having a first electrode; a second semiconductor element having a second electrode; a Sn-based micro-solder bump formed on the second electrode; and a concave bump pad including the first electrode opposite to the micro-solder bump, where the first electrode is connected to the second electrode via the micro-solder bump and the concave bump pad.Type: ApplicationFiled: April 15, 2015Publication date: February 23, 2017Applicant: Sony CorporationInventors: Satoru WAKIYAMA, Naoki JYO, Kan SHIMIZU, Toshihiko HAYASHI, Takuya NAKAMURA
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Publication number: 20160181303Abstract: It is possible to reduce resistance variations of a member connecting a through-silicon via to a line and improve wiring reliability. A hole through which the through-silicon via is to be stretched is created and an over-etching process is carried out on a wiring layer including the line. Then, by embedding copper in the hole, the through-silicon via made of the copper can be created. After the through-silicon via has been connected to the line made of aluminum through the member which is a connection area, the connection area is alloyed in a thermal treatment in order to electrically connect the through-silicon via to the line. Thus, it is possible to reduce variations of a resistance between the through-silicon via and the line and also improve wiring reliability as well. The present technology can be applied to a semiconductor device and a method for manufacturing the semiconductor device.Type: ApplicationFiled: March 1, 2016Publication date: June 23, 2016Inventors: Kan Shimizu, Keishi Inoue
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Patent number: 9287311Abstract: It is possible to reduce resistance variations of a member connecting a through-silicon via to a line and improve wiring reliability. A hole through which the through-silicon via is to be stretched is created and an over-etching process is carried out on a wiring layer including the line. Then, by embedding copper in the hole, the through-silicon via made of the copper can be created. After the through-silicon via has been connected to the line made of aluminum through the member which is a connection area, the connection area is alloyed in a thermal treatment in order to electrically connect the through-silicon via to the line. Thus, it is possible to reduce variations of a resistance between the through-silicon via and the line and also improve wiring reliability as well. The present technology can be applied to a semiconductor device and a method for manufacturing the semiconductor device.Type: GrantFiled: August 16, 2012Date of Patent: March 15, 2016Assignee: SONY CORPORATIONInventors: Kan Shimizu, Keishi Inoue
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Publication number: 20140240050Abstract: A power circuit includes a bridge circuit connected to a first node by which an output voltage is supplied to a load circuit including an amplifier containing a CMOS inverter, and configured to generate a current flowing in a first current channel and a current flowing in a second current channel in accordance with a voltage difference between the output voltage and a predetermined set voltage to be supplied to the load circuit, and a current amplifier configured to generate a current flowing in a third current channel to the load circuit in accordance with an input source voltage and a difference between the current flowing in the first current channel and the current flowing in the second current channel. The predetermined set voltage that is supplied to the load circuit achieves the smallest transconductance during normal operation of the amplifier.Type: ApplicationFiled: February 5, 2014Publication date: August 28, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Kan SHIMIZU
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Publication number: 20130082341Abstract: It is possible to reduce resistance variations of a member connecting a through-silicon via to a line and improve wiring reliability. A hole through which the through-silicon via is to be stretched is created and an over-etching process is carried out on a wiring layer including the line. Then, by embedding copper in the hole, the through-silicon via made of the copper can be created. After the through-silicon via has been connected to the line made of aluminum through the member which is a connection area, the connection area is alloyed in a thermal treatment in order to electrically connect the through-silicon via to the line. Thus, it is possible to reduce variations of a resistance between the through-silicon via and the line and also improve wiring reliability as well. The present technology can be applied to a semiconductor device and a method for manufacturing the semiconductor device.Type: ApplicationFiled: August 16, 2012Publication date: April 4, 2013Applicant: SONY CORPORATIONInventors: Kan SHIMIZU, Keishi INOUE
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Patent number: 7944255Abstract: A CMOS bias circuit includes a starter circuits and a started circuit part which supplies a current to the outside. The starter circuits has a connection node (first terminal) between it and the started circuit part. The starter circuits includes a first MOS transistor connected at its drain to the first terminal, a first current supply circuit which supplies a starter current to the started circuit via the first MOS transistor, and a circuit which supplies a second current in a direction that interrupts a current flowing through the first MOS transistor to a node between the first MOS transistor and the first current supply circuit in accordance with a potential at the first terminal. The starter circuits has a function of preventing a current flowing between the drain and source of the first MOS transistor in the opposite direction by increasing or decreasing a gate bias of the first MOS transistor in accordance with a value of the second current.Type: GrantFiled: September 21, 2009Date of Patent: May 17, 2011Assignee: Kabushiki Kaisha ToshibaInventor: Kan Shimizu
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Publication number: 20100231289Abstract: A CMOS bias circuit includes a starter circuits and a started circuit part which supplies a current to the outside. The starter circuits has a connection node (first terminal) between it and the started circuit part. The starter circuits includes a first MOS transistor connected at its drain to the first terminal, a first current supply circuit which supplies a starter current to the started circuit via the first MOS transistor, and a circuit which supplies a second current in a direction that interrupts a current flowing through the first MOS transistor to a node between the first MOS transistor and the first current supply circuit in accordance with a potential at the first terminal. The starter circuits has a function of preventing a current flowing between the drain and source of the first MOS transistor in the opposite direction by increasing or decreasing a gate bias of the first MOS transistor in accordance with a value of the second current.Type: ApplicationFiled: September 21, 2009Publication date: September 16, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Kan Shimizu
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Patent number: 7355469Abstract: A resistor element is inserted between an output terminal of an output transistor and an output terminal of a regulator circuit. A signal, which is taken out of a connection node between the output terminal of the output transistor and the resistor element, is used for phase compensation. Thereby, oscillation is prevented from being caused by a phase delay due to a capacitive load which is connected to the output of the regulator circuit.Type: GrantFiled: July 3, 2006Date of Patent: April 8, 2008Assignee: Kabushiki Kaisha ToshibaInventor: Kan Shimizu
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Publication number: 20070001656Abstract: A resistor element is inserted between an output terminal of an output transistor and an output terminal of a regulator circuit. A signal, which is taken out of a connection node between the output terminal of the output transistor and the resistor element, is used for phase compensation. Thereby, oscillation is prevented from being caused by a phase delay due to a capacitive load which is connected to the output of the regulator circuit.Type: ApplicationFiled: July 3, 2006Publication date: January 4, 2007Inventor: Kan Shimizu