Patents by Inventor Yoshikazu Kumagaya
Yoshikazu Kumagaya 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: 10236231Abstract: A semiconductor device includes a lead frame; a circuit board located on the lead frame; a power device that includes a switching element and is mounted on the circuit board via a bump located between the power device and the circuit board; and a heat releasing member connected to the power device. The circuit board may be a multi-layer wiring board. The circuit board may include a capacitor element, a resistor element, an inductor element, a diode element and a switching element.Type: GrantFiled: June 30, 2017Date of Patent: March 19, 2019Assignee: J-DEVICES CORPORATIONInventors: Takeshi Miyakoshi, Sumikazu Hosoyamada, Yoshikazu Kumagaya, Tomoshige Chikai, Shingo Nakamura, Hiroaki Matsubara, Shotaro Sakumoto
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Patent number: 10134710Abstract: A stacked semiconductor package in an embodiment includes a first semiconductor package including a first circuit board and a first semiconductor element mounted on the first circuit board; and a second semiconductor package including a second circuit board and a second semiconductor element mounted on the second circuit board, the second semiconductor package being stacked on the first semiconductor package. The first semiconductor package further includes a sealing resin sealing the first semiconductor element; a conductive layer located in contact with the sealing resin; and a thermal via connected to the conductive layer and located on the first circuit board.Type: GrantFiled: February 2, 2017Date of Patent: November 20, 2018Assignee: J-DEVICES CORPORATIONInventors: Takeshi Miyakoshi, Sumikazu Hosoyamada, Yoshikazu Kumagaya, Tomoshige Chikai, Shingo Nakamura, Hiroaki Matsubara, Shotaro Sakumoto
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Publication number: 20170301599Abstract: A semiconductor device includes a lead frame; a circuit board located on the lead frame; a power device that includes a switching element and is mounted on the circuit board via a bump located between the power device and the circuit board; and a heat releasing member connected to the power device. The circuit board may be a multi-layer wiring board. The circuit board may include a capacitor element, a resistor element, an inductor element, a diode element and a switching element.Type: ApplicationFiled: June 30, 2017Publication date: October 19, 2017Applicant: J-DEVICES CORPORATIONInventors: Takeshi MIYAKOSHI, Sumikazu HOSOYAMADA, Yoshikazu KUMAGAYA, Tomoshige CHIKAI, Shingo NAKAMURA, Hiroaki MATSUBARA, Shotaro SAKUMOTO
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Publication number: 20170148766Abstract: A stacked semiconductor package in an embodiment includes a first semiconductor package including a first circuit board and a first semiconductor element mounted on the first circuit board; and a second semiconductor package including a second circuit board and a second semiconductor element mounted on the second circuit board, the second semiconductor package being stacked on the first semiconductor package. The first semiconductor package further includes a sealing resin sealing the first semiconductor element; a conductive layer located in contact with the sealing resin; and a thermal via connected to the conductive layer and located on the first circuit board.Type: ApplicationFiled: February 2, 2017Publication date: May 25, 2017Applicant: J-DEVICES CORPORATIONInventors: Takeshi MIYAKOSHI, Sumikazu HOSOYAMADA, Yoshikazu KUMAGAYA, Tomoshige CHIKAI, Shingo NAKAMURA, Hiroaki MATSUBARA, Shotaro SAKUMOTO
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Patent number: 9635762Abstract: A stacked semiconductor package includes a first semiconductor package including a first circuit board and a first semiconductor device mounted on the first circuit board; a second semiconductor package including a second circuit board and a second semiconductor device mounted on the second circuit board, the second semiconductor package being stacked on the first semiconductor package; and a heat transfer member provided on the first semiconductor device and a part of the first circuit board, the part being around the first semiconductor device.Type: GrantFiled: July 20, 2015Date of Patent: April 25, 2017Assignee: J-DEVICES CORPORATIONInventors: Shinji Watanabe, Sumikazu Hosoyamada, Shingo Nakamura, Hiroshi Demachi, Takeshi Miyakoshi, Tomoshige Chikai, Kiminori Ishido, Hiroaki Matsubara, Takashi Nakamura, Hirokazu Honda, Yoshikazu Kumagaya, Shotaro Sakumoto, Toshihiro Iwasaki, Michiaki Tamakawa
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Patent number: 9601450Abstract: A stacked semiconductor package in an embodiment includes a first semiconductor package including a first circuit board and a first semiconductor element mounted on the first circuit board; and a second semiconductor package including a second circuit board and a second semiconductor element mounted on the second circuit board, the second semiconductor package being stacked on the first semiconductor package. The first semiconductor package further includes a sealing resin sealing the first semiconductor element; a conductive layer located in contact with the sealing resin; and a thermal via connected to the conductive layer and located on the first circuit board.Type: GrantFiled: March 26, 2015Date of Patent: March 21, 2017Assignee: J-DEVICES CORPORATIONInventors: Takeshi Miyakoshi, Sumikazu Hosoyamada, Yoshikazu Kumagaya, Tomoshige Chikai, Shingo Nakamura, Hiroaki Matsubara, Shotaro Sakumoto
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Patent number: 9368474Abstract: A manufacturing method for a semiconductor device of the present invention includes: preparing a semiconductor wafer including an electrode formed therein; electrically connecting a first semiconductor element formed in a semiconductor chip and the electrode formed in the semiconductor wafer; filling a gap between the semiconductor wafer and the semiconductor chip with a first insulating resin layer; forming a second insulating resin layer on the semiconductor wafer; grinding the second insulating resin layer and the semiconductor chip until a thickness of the semiconductor chip reaches a predetermined thickness; forming a first insulating layer on the second insulating resin layer and the semiconductor chip; forming a line on the first insulating layer connected with a conductive material filled an opening in the first insulating layer and the second insulating resin layer to expose the electrode; and grinding the semiconductor wafer until a thickness of the semiconductor wafer reaches a predetermined thicknType: GrantFiled: September 10, 2015Date of Patent: June 14, 2016Assignee: J-DEVICES CORPORATIONInventors: Hiroaki Matsubara, Tomoshige Chikai, Kiminori Ishido, Takashi Nakamura, Hirokazu Honda, Hiroshi Demachi, Yoshikazu Kumagaya, Shotaro Sakumoto, Shinji Watanabe, Sumikazu Hosoyamada, Shingo Nakamura, Takeshi Miyakoshi, Toshihiro Iwasaki, Michiaki Tamakawa
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Patent number: 9362200Abstract: A semiconductor package includes a support substrate arranged with a first aperture reaching a semiconductor device on a rear side, the semiconductor device is bonded via an adhesive to a surface of the support substrate, an insulating layer covering the semiconductor device, and wiring for connecting the semiconductor device and an external terminal through the insulating layer. The adhesive may form a part of the first aperture. In addition, a heat dissipation part may be arranged in the first aperture and a metal material may be filled in the first aperture.Type: GrantFiled: June 19, 2015Date of Patent: June 7, 2016Assignee: J-DEVICES CORPORATIONInventors: Hirokazu Honda, Shinji Watanabe, Toshihiro Iwasaki, Kiminori Ishido, Koichiro Niwa, Takeshi Miyakoshi, Sumikazu Hosoyamada, Yoshikazu Kumagaya, Tomoshige Chikai, Shingo Nakamura, Shotaro Sakumoto, Hiroaki Matsubara
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Publication number: 20160079204Abstract: A manufacturing method for a semiconductor device of the present invention includes: preparing a semiconductor wafer including an electrode formed therein; electrically connecting a first semiconductor element formed in a semiconductor chip and the electrode formed in the semiconductor wafer; filling a gap between the semiconductor wafer and the semiconductor chip with a first insulating resin layer; forming a second insulating resin layer on the semiconductor wafer; grinding the second insulating resin layer and the semiconductor chip until a thickness of the semiconductor chip reaches a predetermined thickness; forming a first insulating layer on the second insulating resin layer and the semiconductor chip; forming a line on the first insulating layer connected with a conductive material filled an opening in the first insulating layer and the second insulating resin layer to expose the electrode; and grinding the semiconductor wafer until a thickness of the semiconductor wafer reaches a predetermined thicknType: ApplicationFiled: September 10, 2015Publication date: March 17, 2016Inventors: Hiroaki Matsubara, Tomoshige Chikai, Kiminori Ishido, Takashi Nakamura, Hirokazu Honda, Hiroshi Demachi, Yoshikazu Kumagaya, Shotaro Sakumoto, Shinji Watanabe, Sumikazu Hosoyamada, Shingo Nakamura, Takeshi Miyakoshi, Toshihiro Iwasaki, Michiaki Tamakawa
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Publication number: 20160027715Abstract: A stacked semiconductor package includes a first semiconductor package including a first circuit board and a first semiconductor device mounted on the first circuit board; a second semiconductor package including a second circuit board and a second semiconductor device mounted on the second circuit board, the second semiconductor package being stacked on the first semiconductor package; and a heat transfer member provided on the first semiconductor device and a part of the first circuit board, the part being around the first semiconductor device.Type: ApplicationFiled: July 20, 2015Publication date: January 28, 2016Inventors: Shinji WATANABE, Sumikazu HOSOYAMADA, Shingo NAKAMURA, Hiroshi DEMACHI, Takeshi MIYAKOSHI, Tomoshige CHIKAI, Kiminori ISHIDO, Hiroaki MATSUBARA, Takashi NAKAMURA, Hirokazu HONDA, Yoshikazu KUMAGAYA, Shotaro SAKUMOTO, Toshihiro IWASAKI, Michiaki TAMAKAWA
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Publication number: 20150371934Abstract: A semiconductor package includes a support substrate arranged with a first aperture reaching a semiconductor device on a rear side, the semiconductor device is bonded via an adhesive to a surface of the support substrate, an insulating layer covering the semiconductor device, and wiring for connecting the semiconductor device and an external terminal through the insulating layer. The adhesive may form a part of the first aperture. In addition, a heat dissipation part may be arranged in the first aperture and a metal material may be filled in the first aperture.Type: ApplicationFiled: June 19, 2015Publication date: December 24, 2015Inventors: Hirokazu HONDA, Shinji WATANABE, Toshihiro IWASAKI, Kiminori ISHIDO, Koichiro NIWA, Takeshi MIYAKOSHI, Sumikazu HOSOYAMADA, Yoshikazu KUMAGAYA, Tomoshige CHIKAI, Shingo NAKAMURA, Shotaro SAKUMOTO, Hiroaki MATSUBARA
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Publication number: 20150279759Abstract: A stacked semiconductor package in an embodiment includes a first semiconductor package including a first circuit board and a first semiconductor element mounted on the first circuit board; and a second semiconductor package including a second circuit board and a second semiconductor element mounted on the second circuit board, the second semiconductor package being stacked on the first semiconductor package. The first semiconductor package further includes a sealing resin sealing the first semiconductor element; a conductive layer located in contact with the sealing resin; and a thermal via connected to the conductive layer and located on the first circuit board.Type: ApplicationFiled: March 26, 2015Publication date: October 1, 2015Applicant: J-DEVICES CORPORATIONInventors: Takeshi Miyakoshi, Sumikazu HOSOYAMADA, Yoshikazu KUMAGAYA, Tomoshige CHIKAI, Shingo NAKAMURA, Hiroaki MATSUBARA, Shotaro SAKUMOTO
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Publication number: 20150243576Abstract: A semiconductor device includes a lead frame; a circuit board located on the lead frame; a power device that includes a switching element and is mounted on the circuit board via a bump located between the power device and the circuit board; and a heat releasing member connected to the power device. The circuit board may be a multi-layer wiring board. The circuit board may include a capacitor element, a resistor element, an inductor element, a diode element and a switching element.Type: ApplicationFiled: February 12, 2015Publication date: August 27, 2015Applicant: J-DEVICES CORPORATIONInventors: Takeshi MIYAKOSHI, Sumikazu HOSOYAMADA, Yoshikazu KUMAGAYA, Tomoshige CHIKAI, Shingo NAKAMURA, Hiroaki MATSUBARA
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Patent number: 8810043Abstract: A semiconductor device includes a semiconductor element having a main surface where an outside connection terminal pad is provided. The semiconductor element is connected to a conductive layer on a supporting board via a plurality of convex-shaped outside connection terminals provided on the outside connection terminal pad and a connection member; and the connection member commonly covers the convex-shaped outside connection terminals.Type: GrantFiled: August 1, 2011Date of Patent: August 19, 2014Assignee: Fujitsu Semiconductor LimitedInventors: Takao Nishimura, Yoshikazu Kumagaya, Akira Takashima, Kouichi Nakamura, Kazuyuki Aiba
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Publication number: 20140061887Abstract: A semiconductor device includes: a plurality of semiconductor chips to be mutually bonded via a bonding resin; a sealing resin to seal the plurality of semiconductor chips; and an anchor to be disposed in a first semiconductor chip included by the plurality of semiconductor chips and to seize the bonding resin.Type: ApplicationFiled: August 20, 2013Publication date: March 6, 2014Applicant: Fujitsu Semiconductor LimitedInventors: Hayato OKUDA, Yoshikazu KUMAGAYA
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Patent number: 8659168Abstract: A wiring board includes a main surface where an electronic component is mounted in a face-down manner so that a surface of the electronic component having plurality of external connecting terminals faces the main surface of the wiring board, the electronic component being fixed to the wiring board by an adhesive; an insulating layer formed on the main surface where the electronic component is mounted; an opening part formed in the insulating layer so that a plurality of adjacent wiring patterns are commonly and partially opened, the adjacent wiring patterns having electrodes where electrodes of the electronic component are connected; wherein an outer periphery of the opening part situated at a center side of the wiring board is formed in an oblique direction against extending directions of the wiring patterns.Type: GrantFiled: March 13, 2008Date of Patent: February 25, 2014Assignee: Fujitsu Semiconductor LimitedInventors: Takao Nishimura, Yoshikazu Kumagaya
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Patent number: 8076769Abstract: A semiconductor device includes a semiconductor element; a plate member disposed opposite to an electronic-circuit forming portion of the semiconductor element; and an elastic body arranged in a compressed state between the semiconductor element and the plate member, wherein the elastic body includes at least one first protruding portion at one end in an extension direction of the elastic body, the first protruding portion being formed opposite to the electronic-circuit forming portion of the semiconductor element, and the semiconductor element and the plate member are fastened by an adhesive agent.Type: GrantFiled: November 21, 2008Date of Patent: December 13, 2011Assignee: Fujitsu Semiconductor LimitedInventors: Takao Nishimura, Yoshikazu Kumagaya
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Patent number: 8076785Abstract: A semiconductor device includes a semiconductor element having a main surface where an outside connection terminal pad is provided. The semiconductor element is connected to a conductive layer on a supporting board via a plurality of convex-shaped outside connection terminals provided on the outside connection terminal pad and a connection member; and the connection member commonly covers the convex-shaped outside connection terminals.Type: GrantFiled: June 26, 2006Date of Patent: December 13, 2011Assignee: Fujitsu Semiconductor LimitedInventors: Takao Nishimura, Yoshikazu Kumagaya, Akira Takashima, Kouichi Nakamura, Kazuyuki Aiba
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Publication number: 20110278723Abstract: A semiconductor device includes a semiconductor element having a main surface where an outside connection terminal pad is provided. The semiconductor element is connected to a conductive layer on a supporting board via a plurality of convex-shaped outside connection terminals provided on the outside connection terminal pad and a connection member; and the connection member commonly covers the convex-shaped outside connection terminals.Type: ApplicationFiled: August 1, 2011Publication date: November 17, 2011Applicant: FUJITSU SEMICONDUCTOR LIMITEDInventors: Takao Nishimura, Yoshikazu Kumagaya, Akira Takashima, Kouichi Nakamura, Kazuyuki Aiba
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Patent number: 7973404Abstract: A relay board provided in a semiconductor device, including an entire main surface that is made of a conductive material. The relay board may further include a substrate made of the same material as at least one semiconductor element provided in the semiconductor device. The main surface of the relay board may be formed at an upper part of the substrate.Type: GrantFiled: March 17, 2006Date of Patent: July 5, 2011Assignee: Fujitsu Semiconductor LimitedInventors: Takao Nishimura, Yoshiaki Narisawa, Yoshikazu Kumagaya