Patents by Inventor Hiroya Shimizu
Hiroya 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: 8362614Abstract: A semiconductor device has a semiconductor chip in which a plurality of semiconductor components and a plurality of pads are arranged, a plurality of external connection contacts arranged in grids, and a plurality of wires for electrically connecting the pads and the external connection contacts. The pads include a plurality of pad groups including a pair of electrode pads connected to the plurality of semiconductor components in common and a plurality of signal pads respectively connected to the semiconductor components connected to the electrode pads. In each pad group, each signal pad is arranged adjacently to one of the electrode pads; and each wire extending from each signal pad is extended along a wire extended from the electrode pad adjacent to each signal pad.Type: GrantFiled: October 12, 2005Date of Patent: January 29, 2013Assignee: Elpida Memory, Inc.Inventors: Mitsuaki Katagiri, Hiroya Shimizu, Fumiyuki Osanai, Yasushi Takahashi, Seiji Narui
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Patent number: 7823096Abstract: System, method and program for inductance analysis for reducing time for analysis, to cope with increase in the system size, to achieve high accuracy in the analysis. Information on a power supply plane, in a state in which a beginning point of non-coupled current of return current accompanying a signal current is placed in the vicinity of a signal through-hole on the power supply plane, based on position information of said signal through-hole, is received. Potential distribution in the power supply plane is determined and output. The non-coupled inductance from the signal through-hole to the power supply through-hole in the power supply plane is evaluated. In the potential analysis, non-coupled inductance L from the signal through-hole to the power supply through-hole is represented by resistance R.Type: GrantFiled: July 31, 2006Date of Patent: October 26, 2010Assignee: Elpida Memory, Inc.Inventors: Mitsuaki Katagiri, Takashi Iida, Hiroya Shimizu, Satoshi Isa
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Patent number: 7681154Abstract: A method for designing a device that comprises a first semiconductor chip, a second semiconductor chip and an adjustment target is disclosed. The first semiconductor chip comprises an input pad, a first power supply pad and a first ground pad. The second semiconductor chip comprises an output pad coupled to the input pad. The adjustment target is connected to the first and the second semiconductor chips. A main target variable is calculated from an input circuit chip model, an output circuit chip model of the second semiconductor chip in frequency domain and a target impedance model of the adjustment target in frequency domain. The input circuit chip model is created by representing the first semiconductor chip in frequency domain in consideration of a first capacitor model between the input pad and the first power supply pad, a second capacitor model between the input pad and the first ground pad, and a chip internal capacitor model between the first power supply pad and the first ground pad.Type: GrantFiled: September 13, 2007Date of Patent: March 16, 2010Assignees: Elpida Memory, Inc., Hitachi, Ltd.Inventors: Mitsuaki Katagiri, Satoshi Nakamura, Takashi Suga, Hiroya Shimizu, Satoshi Isa, Satoshi Itaya, Yukitoshi Hirose
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Publication number: 20080072194Abstract: A method for designing a device that comprises a first semiconductor chip, a second semiconductor chip and an adjustment target is disclosed. The first semiconductor chip comprises an input pad, a first power supply pad and a first ground pad. The second semiconductor chip comprises an output pad coupled to the input pad. The adjustment target is connected to the first and the second semiconductor chips. A main target variable is calculated from an input circuit chip model, an output circuit chip model of the second semiconductor chip in frequency domain and a target impedance model of the adjustment target in frequency domain. The input circuit chip model is created by representing the first semiconductor chip in frequency domain in consideration of a first capacitor model between the input pad and the first power supply pad, a second capacitor model between the input pad and the first ground pad, and a chip internal capacitor model between the first power supply pad and the first ground pad.Type: ApplicationFiled: September 13, 2007Publication date: March 20, 2008Applicants: ELPIDA MEMORY, INC., HITACHI, LTD.Inventors: Mitsuaki KATAGIRI, Satoshi Nakamura, Takashi Suga, Hiroya Shimizu, Satoshi Isa, Satoshi Itaya, Yukitoshi Hirose
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Patent number: 7345892Abstract: In a memory module, reference potential connecting patterns are disposed on high frequency signal lines and/or on the extension lines extending from the terminal ends of the signal lines as well as a shield cover for covering semiconductor memory chips is disposed on the substrate, and the reference potential connecting patterns are connected to the shield cover through metal cover contact parts.Type: GrantFiled: May 20, 2005Date of Patent: March 18, 2008Assignees: NEC Corporation, Renesas Eastern Japan Semiconductor, Inc., Elpida Memory, Inc.Inventors: Masaharu Imazato, Atsushi Nakamura, Takayuki Watanabe, Kensuke Tsuneda, Mitsuaki Katagiri, Hiroya Shimizu, Tatsuya Nagata
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Publication number: 20070033553Abstract: System, method and program for inductance analysis for reducing time for analysis, to cope with increase in the system size, to achieve high accuracy in the analysis. Information on a power supply plane, in a state in which a beginning point of non-coupled current of return current accompanying a signal current is placed in the vicinity of a signal through-hole on the power supply plane, based on position information of said signal through-hole, is received. Potential distribution in the power supply plane is determined and output. The non-coupled inductance from the signal through-hole to the power supply through-hole in the power supply plane is evaluated. In the potential analysis, non-coupled inductance L from the signal through-hole to the power supply through-hole is represented by resistance R.Type: ApplicationFiled: July 31, 2006Publication date: February 8, 2007Inventors: Mitsuaki Katagiri, Takashi Iida, Hiroya Shimizu, Satoshi Isa
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Patent number: 7119446Abstract: A semiconductor device is provided which includes a semiconductor element having power pads for supplying a power potential, ground pads for supplying a ground potential, and signal pads for inputting and outputting a signal, all of which are formed on one main surface thereof. Power bumps for outside connection are connected with the power pad by power wiring sections, ground bumps for outside connection are connected with the ground pad by ground wiring sections, and signal bumps for outside connection are connected with the signal pad by signal wiring sections. The power wiring sections or the ground wiring sections are respectively located adjacently on both sides of the signal wiring sections and the power wiring sections are respectively located adjacently on sides of the ground wiring sections.Type: GrantFiled: February 7, 2006Date of Patent: October 10, 2006Assignee: Hitachi, Ltd.Inventors: Hiroya Shimizu, Asao Nishimura, Tosiho Miyamoto, Hideki Tanaka, Hideo Miura
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Publication number: 20060125078Abstract: A semiconductor device is provided which includes a semiconductor element having power pads for supplying a power potential, ground pads for supplying a ground potential, and signal pads for inputting and outputting a signal, all of which are formed on one main surface thereof. Power bumps for outside connection are connected with the power pad by power wiring sections, ground bumps for outside connection are connected with the ground pad by ground wiring sections, and signal bumps for outside connection are connected with the signal pad by signal wiring sections. The power wiring sections or the ground wiring sections are respectively located adjacently on both sides of the signal wiring sections and the power wiring sections are respectively located adjacently on sides of the ground wiring sections.Type: ApplicationFiled: February 7, 2006Publication date: June 15, 2006Inventors: Hiroya Shimizu, Asao Nishimura, Tosiho Miyamoto, Hideki Tanaka, Hideo Miura
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Publication number: 20060081972Abstract: A semiconductor device has a semiconductor chip in which a plurality of semiconductor components and a plurality of pads are arranged, a plurality of external connection contacts arranged in grids, and a plurality of wires for electrically connecting the pads and the external connection contacts. The pads include a plurality of pad groups including a pair of electrode pads connected to the plurality of semiconductor components in common and a plurality of signal pads respectively connected to the semiconductor components connected to the electrode pads. In each pad group, each signal pad is arranged adjacently to one of the electrode pads; and each wire extending from each signal pad is extended along a wire extended from the electrode pad adjacent to each signal pad.Type: ApplicationFiled: October 12, 2005Publication date: April 20, 2006Inventors: Mitsuaki Katagiri, Hiroya Shimizu, Fumiyuki Osanai, Yasushi Takahashi, Seiji Narui
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Patent number: 7030478Abstract: A semiconductor device including a semiconductor element having external terminals at a first level and external electrodes at a second level, higher than the first level. The external terminals include power terminals, ground terminals and signal terminals formed on a main surface of the semiconductor element. The external electrodes include power electrodes connected to the power terminals via power connecting sections, ground electrodes connected to the ground terminals via ground connecting sections and signal electrodes connected to the signal terminals via signal connecting sections. One of the signal terminals, signal electrodes and corresponding signal connecting sections are surrounded by either the power connecting sections connecting the power terminals and power electrodes or by the ground connection sections connecting the ground terminals and ground electrodes.Type: GrantFiled: April 19, 2005Date of Patent: April 18, 2006Assignee: Renesas Technology Corp.Inventors: Hiroya Shimizu, Asao Nishimura, Tosiho Miyamoto, Hideki Tanaka, Hideo Miura
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Patent number: 6977514Abstract: A probe structure is provided in which secondary electrodes of a main base material and probes are formed can be electrically connected to electrodes in a substrate side even when a lot of probes are formed in a large area, so that a lot of LSIs within a wafer can be tested in one lot in a wafer test process, and an efficiency of the test process can be improved. In the probe structure, an interposer constituted by a high rigid material is arranged between the main base material having the probes formed therein and the substrate side, and the secondary electrodes of the main base material having the probes formed therein are electrically connected to the electrodes in the substrate side via the interposer.Type: GrantFiled: July 24, 2003Date of Patent: December 20, 2005Assignee: Hitachi, Ltd.Inventors: Ryuji Kohno, Tatsuya Nagata, Hiroya Shimizu, Toshio Miyatake, Hideo Miura
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Publication number: 20050270758Abstract: In a memory module, reference potential connecting patterns are disposed on high frequency signal lines and/or on the extension lines extending from the terminal ends of the signal lines as well as a shield cover for covering semiconductor memory chips is disposed on the substrate, and the reference potential connecting patterns are connected to the shield cover through metal cover contact parts.Type: ApplicationFiled: May 20, 2005Publication date: December 8, 2005Applicants: NEC Corporation, Renesas Eastern Japan Semiconductor, Inc., Elpida Memory, Inc.Inventors: Masaharu Imazato, Atsushi Nakamura, Takayuki Watanabe, Kensuke Tsuneda, Mitsuaki Katagiri, Hiroya Shimizu, Tatsuya Nagata
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Patent number: 6955870Abstract: A method of manufacturing a semiconductor device has forming process for forming a semiconductor device on a major surface of a wafer, and testing process for testing defect of the semiconductor device formed on the wafer. The testing process includes a step bringing a testing apparatus into contact with test electrodes of the semiconductor device. The testing apparatus has a contactor including a plurality of probes that come into contact with the test electrodes of the semiconductor device to be tested, and secondary electrodes electrically connected to the probes and disposed on a surface opposite to the probes; a substrate on which electrodes electrically communicated to the contactor by a conducting device. The conducting device is so formed that stress applied to the conducting device in the state where the probes are in contact with the test electrodes is larger than stress applied to the conducting device in the state where the probes are not in contact with the test electrodes.Type: GrantFiled: October 17, 2002Date of Patent: October 18, 2005Assignee: Hitachi, Ltd.Inventors: Ryuji Kohno, Hideo Miura, Masatoshi Kanamaru, Hiroya Shimizu, Hideyuki Aoki
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Patent number: 6952110Abstract: A method of manufacturing a semiconductor device has forming process for forming a semiconductor device on a major surface of a wafer, and testing process for testing defect of the semiconductor device. The testing process includes bringing a testing apparatus into contact with test electrodes of the semiconductor device. The testing apparatus has a contactor including probes that come into contact with the test electrodes of the semiconductor device, and secondary electrodes electrically connected to the probes and disposed on a surface opposite to the probes; and a substrate on which electrodes electrically communicated to the contactor by a conducting device. The conducting device is so formed that stress applied to the conducting device in the state where the probes are in contact with the test electrodes is larger than stress applied to the conducting device in the state where the probes are not in contact with the test electrodes.Type: GrantFiled: September 3, 2004Date of Patent: October 4, 2005Assignee: Renesas Technology CorporationInventors: Ryuji Kohno, Hideo Miura, Masatoshi Kanamaru, Hiroya Shimizu, Hideyuki Aoki
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Publication number: 20050184391Abstract: A semiconductor device including a semiconductor element having external terminals at a first level and external electrodes at a second level, higher than the first level. The external terminals include power terminals, ground terminals and signal terminals formed on a main surface of the semiconductor element. The external electrodes include power electrodes connected to the power terminals via power connecting sections, ground electrodes connected to the ground terminals via ground connecting sections and signal electrodes connected to the signal terminals via signal connecting sections. One of the signal terminals, signal electrodes and corresponding signal connecting sections are surrounded by either the power connecting sections connecting the power terminals and power electrodes or by the ground connection sections connecting the ground terminals and ground electrodes.Type: ApplicationFiled: April 19, 2005Publication date: August 25, 2005Inventors: Hiroya Shimizu, Asao Nishimura, Tosiho Miyamoto, Hideki Tanaka, Hideo Miura
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Patent number: 6885208Abstract: A semiconductor device includes a quadrangular semiconductor substrate and a self test circuit formed on the semiconductor substrate. A plurality of pads are formed on the semiconductor substrate, which pads are coupled at least to the self test circuit. The semiconductor substrate includes four rectangular or square regions which each include a respective corner of the quadrangle, and at least two of the pads are respectively located on diagonally opposite ones of the regions from one another.Type: GrantFiled: August 15, 2002Date of Patent: April 26, 2005Assignee: Renesas Technology Corp.Inventors: Toshio Miyatake, Tatsuya Nagata, Hiroya Shimizu, Ryuji Kohno, Hideyuki Aoki
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Patent number: 6882039Abstract: A semiconductor device including a semiconductor element having external terminals at a first level and external electrodes at a second level, higher than the first level. The external terminals include power terminals, ground terminals and signal terminals formed on a main surface of the semiconductor element. The external electrodes include power electrodes connected to the power terminals via power connecting sections, ground electrodes connected to the ground terminals via ground connecting sections and signal electrodes connected to the signal terminals via signal connecting sections. One of the signal terminals, signal electrodes and corresponding signal connecting sections are surrounded by either the power connecting sections connecting the power terminals and power electrodes or by the ground connection sections connecting the ground terminals and ground electrodes.Type: GrantFiled: August 3, 2004Date of Patent: April 19, 2005Assignee: Renesas Technology Corp.Inventors: Hiroya Shimizu, Asao Nishimura, Tosiho Miyamoto, Hideki Tanaka, Hideo Miura
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Patent number: 6864695Abstract: Since each wiring line is formed on one surface of the associated beam at a prescribed width over the entire length of the beam, the beam has the same sectional shape taken in the width direction at any point along an arbitrary longitudinal direction of the beam. As a result, the second moment of area, which is determined by the shapes of the beam and the wiring line, is uniform. This prevents a problem of the curvature of a beam varying locally when the beam is bent by a prescribed amount due to contact of the probe with a pad of a subject body. This, in turn, prevents local concentration of stress in the beams and thereby prevents breakage of the beam. Therefore, the probe structure can be miniaturized while the strength of the beams is kept at a required level, whereby a semiconductor device testing apparatus capable of accommodating many probes can be realized.Type: GrantFiled: August 10, 2001Date of Patent: March 8, 2005Assignee: Renesas Technology Corp.Inventors: Ryuji Kohno, Hideo Miura, Masatoshi Kanamaru, Hiroya Shimizu, Naoto Ban
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Patent number: 6864568Abstract: A packaging device for holding thereon a plurality of semiconductor devices to be inspected on an inspection device including a probe to be electrically connected to an electrode of each of the semiconductor devices, comprises, holes for respectively receiving detachably therein the semiconductor devices to keep a positional relationship among the semiconductor devices and a positional relationship between the packaging device and each of the semiconductor devices constant with a spacing between the semiconductor devices, in a direction perpendicular to a thickness direction of the semiconductor devices, and electrically conductive members adapted to be connected respectively to the electrodes of the semiconductor devices, and extending to an exterior of the packaging device so that the probe is connected to each of the electrically conductive members.Type: GrantFiled: September 24, 2002Date of Patent: March 8, 2005Assignee: Renesas Technology Corp.Inventors: Ryuji Kohno, Hiroya Shimizu, Masatoshi Kanamaru, Atsushi Hosogane, Toshio Miyatake, Hideo Miura, Tatsuya Nagata, Yoshishige Endo, Masaaki Namba, Yuji Wada
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Publication number: 20050032252Abstract: A method of manufacturing a semiconductor device has forming process for forming a semiconductor device on a major surface of a wafer, and testing process for testing defect of the semiconductor device formed on the wafer. The testing process includes a step bringing a testing apparatus into contact with test electrodes of the semiconductor device. The testing apparatus has a contactor including a plurality of probes that come into contact with the test electrodes of the semiconductor device to be tested, and secondary electrodes electrically connected to the probes and disposed on a surface opposite to the probes; a substrate on which electrodes electrically communicated to the contactor by a conducting device. The conducting device is so formed that stress applied to the conducting device in the state where the probes are in contact with the test electrodes is larger than stress applied to the conducting device in the state where the probes are not in contact with the test electrodes.Type: ApplicationFiled: September 3, 2004Publication date: February 10, 2005Applicant: Renesas Technology CorporationInventors: Ryuji Kohno, Hideo Miura, Masatoshi Kanamaru, Hiroya Shimizu, Hideyuki Aoki