Patents by Inventor Munetoshi Nagasaka
Munetoshi Nagasaka 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: 9759762Abstract: A probe device includes an electrode plate arranged above a mounting table for mounting thereon a semiconductor wafer and electrically connected to a tester, a contact probe arranged at a side of the mounting table and electrically connected to a mounting table electrode of the mounting table. The contact probe includes a contact portion, having a top surface formed uneven, to be in contact with the electrode plate, and a cable connection portion formed as one unit with the contact portion. The contact portion and the cable connection portion are vertically movable by a biasing member provided below the cable connection portion. When the probes are made contact with electrodes of a semiconductor device of the semiconductor wafer by moving up the mounting table, the contact portion and the electrode plate are made contact with each other and the backside electrode and the tester are electrically connected to each other.Type: GrantFiled: March 18, 2014Date of Patent: September 12, 2017Assignee: TOKYO ELECTRON LIMITEDInventors: Eiichi Shinohara, Munetoshi Nagasaka, Ken Taoka, Yoshiyasu Kato
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Patent number: 9638719Abstract: A probe device includes an electrode plate arranged above a mounting table for mounting thereon a semiconductor wafer and electrically connected to a tester, a connection conductor arranged at a side of the mounting table and electrically connected to a mounting table electrode formed on a mounting surface of the mounting table, and a cleaning mechanism including a polishing unit for polishing a contact portion of the connection conductor, a brush cleaning unit for performing a brush-cleaning of the contact portion, and a contact resistance measuring unit for measuring a contact resistance of the contact portion. The mounting table electrode is in contact with a backside electrode of a semiconductor device of the semiconductor wafer. When the connection conductor is connected to the electrode plate, a backside electrode formed on a backside of the semiconductor device and the tester are electrically connected to each other.Type: GrantFiled: March 18, 2014Date of Patent: May 2, 2017Assignee: TOKYO ELECTRON LIMITEDInventors: Eiichi Shinohara, Munetoshi Nagasaka, Yoshiyasu Kato
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Patent number: 9523711Abstract: A probe apparatus includes a card clamp unit detachably supporting a probe card; and a wafer mounting table adsorbing the semiconductor wafer and bringing electrodes on the semiconductor wafer into contact with the probes. In order to mount the semiconductor wafer including an annular portion protruding from a rear surface of an outer peripheral portion and a thin portion having a thickness smaller than the annular portion, the wafer mounting table includes a planar portion on which the thin portion is mounted; and a step-shaped portion which is formed at an edge of the planar portion and mounts the annular portion thereon. Multiple circular vacuum chuck grooves are concentrically formed in the planar portion, and at least some of the vacuum chuck grooves are connected to multiple vacuum paths through which vacuum evacuation is performed at multiple positions separated from each other by 90° or more along a circumferential direction.Type: GrantFiled: April 25, 2013Date of Patent: December 20, 2016Assignee: TOKYO ELECTRON LIMITEDInventors: Kazuya Yano, Eiji Hayashi, Munetoshi Nagasaka
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Publication number: 20160061882Abstract: A probe device includes an electrode plate arranged above a mounting table for mounting thereon a semiconductor wafer and electrically connected to a tester, a contact probe arranged at a side of the mounting table and electrically connected to a mounting table electrode of the mounting table. The contact probe includes a contact portion, having a top surface formed uneven, to be in contact with the electrode plate, and a cable connection portion formed as one unit with the contact portion. The contact portion and the cable connection portion are vertically movable by a biasing member provided below the cable connection portion. When the probes are made contact with electrodes of a semiconductor device of the semiconductor wafer by moving up the mounting table, the contact portion and the electrode plate are made contact with each other and the backside electrode and the tester are electrically connected to each other.Type: ApplicationFiled: March 18, 2014Publication date: March 3, 2016Inventors: Eiichi SHINOHARA, Munetoshi NAGASAKA, Ken TAOKA, Yoshiyasu KATO
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Publication number: 20160054357Abstract: A probe device includes an electrode plate arranged above a mounting table for mounting thereon a semiconductor wafer and electrically connected to a tester, a connection conductor arranged at a side of the mounting table and electrically connected to a mounting table electrode formed on a mounting surface of the mounting table, and a cleaning mechanism including a polishing unit for polishing a contact portion of the connection conductor, a brush cleaning unit for performing a brush-cleaning of the contact portion, and a contact resistance measuring unit for measuring a contact resistance of the contact portion. The mounting table electrode is in contact with a backside electrode of a semiconductor device of the semiconductor wafer. When the connection conductor is connected to the electrode plate, a backside electrode formed on a backside of the semiconductor device and the tester are electrically connected to each other.Type: ApplicationFiled: March 18, 2014Publication date: February 25, 2016Inventors: Eiichi SHINOHARA, Munetoshi NAGASAKA, Yoshiyasu KATO
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Patent number: 9261553Abstract: A probe apparatus of inspecting electrical characteristics of a power device having electrodes on both sides of a substrate at wafer level can reduce and uniformize a contact resistance between the electrode on a rear surface of the substrate and a mounting surface conductor of a chuck top. In the probe apparatus, an attracting device supports a semiconductor wafer W on the chuck top 12, and has many vertical fine holes in a pattern (diameter ? and pitch p) that satisfies the condition of ?<p?2?. For example, the diameter ? is about 0.25 mm, and the pitch p is about 0.5 mm.Type: GrantFiled: July 28, 2014Date of Patent: February 16, 2016Assignee: TOKYO ELECTRON LIMITEDInventors: Eiichi Shinohara, Munetoshi Nagasaka, Isamu Inomata, Kazuya Yano, Yoshiyasu Kato
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Publication number: 20150145547Abstract: A probe apparatus includes a card clamp unit detachably supporting a probe card; and a wafer mounting table adsorbing the semiconductor wafer and bringing electrodes on the semiconductor wafer into contact with the probes. In order to mount the semiconductor wafer including an annular portion protruding from a rear surface of an outer peripheral portion and a thin portion having a thickness smaller than the annular portion, the wafer mounting table includes a planar portion on which the thin portion is mounted; and a step-shaped portion which is formed at an edge of the planar portion and mounts the annular portion thereon. Multiple circular vacuum chuck grooves are concentrically formed in the planar portion, and at least some of the vacuum chuck grooves are connected to multiple vacuum paths through which vacuum evacuation is performed at multiple positions separated from each other by 90° or more along a circumferential direction.Type: ApplicationFiled: April 25, 2013Publication date: May 28, 2015Inventors: Kazuya Yano, Eiji Hayashi, Munetoshi Nagasaka
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Publication number: 20150028907Abstract: A probe apparatus of inspecting electrical characteristics of a power device having electrodes on both sides of a substrate at wafer level can reduce and uniformize a contact resistance between the electrode on a rear surface of the substrate and a mounting surface conductor of a chuck top. In the probe apparatus, an attracting device supports a semiconductor wafer W on the chuck top 12, and has many vertical fine holes in a pattern (diameter ? and pitch p) that satisfies the condition of ?<p?2?. For example, the diameter ? is about 0.25 mm, and the pitch p is about 0.5 mm.Type: ApplicationFiled: July 28, 2014Publication date: January 29, 2015Inventors: Eiichi Shinohara, Munetoshi Nagasaka, Isamu Inomata, Kazuya Yano, Yoshiyasu Kato
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Patent number: 8196983Abstract: A substrate attracting device includes an attracting body for attracting and holding a substrate to transfer the substrate. The attracting body includes a first attracting unit for attracting and holding a top surface of the substrate according to Bernoulli principle and a second attracting unit for vacuum-attracting and holding a bottom surface of the substrate.Type: GrantFiled: April 23, 2008Date of Patent: June 12, 2012Assignee: Tokyo Electron LimitedInventors: Munetoshi Nagasaka, Ikuo Ogasawara
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Patent number: 8082977Abstract: A mounting apparatus includes a surface plate; a temperature control unit integrated with the surface plate; and a bottom plate integrated with the temperature control unit via a heat insulation ring, wherein a temperature of a target object held on the surface plate is capable of being controlled and the surface plate is formed of ceramic. The surface plate and the temperature control unit are coupled to each other by a first coupling member at each portion thereof except for each peripheral portion thereof such that the peripheral portion of the surface plate being not coupled thereto. The peripheral portion of the temperature control unit is coupled to the heat insulation ring by a second coupling member.Type: GrantFiled: March 12, 2007Date of Patent: December 27, 2011Assignee: Tokyo Electron LimitedInventors: Yutaka Akaike, Munetoshi Nagasaka
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Patent number: 7541801Abstract: A probe card transfer assist apparatus for assisting an operation of transferring a probe card used in an electrical inspection apparatus includes a holder for holding the probe card; a support for supporting the holder in a freely-rotate manner about a point; and an elevation unit for moving the support up and down. Further, an inspection equipment includes an electrical inspection apparatus; and a probe card transfer assist apparatus for assisting an operation of transferring a probe card used in the electrical inspection apparatus, the assist apparatus including a holder for holding the probe card; a support for supporting the holder in a freely-rotating manner about a point; and an elevation unit for moving the support up and down.Type: GrantFiled: September 20, 2006Date of Patent: June 2, 2009Assignee: Tokyo Electron LimitedInventors: Munetoshi Nagasaka, Chiaki Mochizuki
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Patent number: 7528620Abstract: A probe card transfer assist apparatus for assisting an operation of transferring a probe card employed in an electrical inspection apparatus includes a holding unit for holding a pair of grips of the probe card wherein the grips are supported by being placed onto or suspended by the holding unit; a supporting unit for movably supporting the holding unit; and an elevation mechanism for moving the supporting unit up and down. Further, an inspecting equipment is provided with the probe card transfer assist apparatus having a holding unit for holding a pair of grips of the probe card wherein the grips are supported by being placed onto or suspended by the holding unit; a supporting unit for movably supporting the holding unit; and an elevation mechanism for moving the supporting unit up and down.Type: GrantFiled: November 27, 2006Date of Patent: May 5, 2009Assignee: Tokyo Electron LimitedInventors: Chiaki Mochizuki, Munetoshi Nagasaka
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Publication number: 20080267741Abstract: A substrate attracting device includes an attracting body for attracting and holding a substrate to transfer the substrate. The attracting body includes a first attracting unit for attracting and holding a top surface of the substrate according to Bernoulli principle and a second attracting unit for vacuum-attracting and holding a bottom surface of the substrate.Type: ApplicationFiled: April 23, 2008Publication date: October 30, 2008Applicant: TOKYO ELECTRON LIMITEDInventors: Munetoshi NAGASAKA, Ikuo OGASAWARA
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Publication number: 20070221363Abstract: A mounting apparatus includes a surface plate; a temperature control unit integrated with the surface plate; and a bottom plate integrated with the temperature control unit via a heat insulation ring, wherein a temperature of a target object held on the surface plate is capable of being controlled and the surface plate is formed of ceramic. The surface plate and the temperature control unit are coupled to each other by a first coupling member at each portion thereof except for each peripheral portion thereof such that the peripheral portion of the surface plate being not coupled thereto. The peripheral portion of the temperature control unit is coupled to the heat insulation ring by a second coupling member.Type: ApplicationFiled: March 12, 2007Publication date: September 27, 2007Applicant: TOKYO ELECTRON LIMITEDInventors: Yutaka AKAIKE, Munetoshi Nagasaka
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Publication number: 20070126441Abstract: A probe card transfer assist apparatus for assisting an operation of transferring a probe card employed in an electrical inspection apparatus includes a holding unit for holding a pair of grips of the probe card wherein the grips are supported by being placed onto or suspended by the holding unit; a supporting unit for movably supporting the holding unit; and an elevation mechanism for moving the supporting unit up and down. Further, an inspecting equipment is provided with the probe card transfer assist apparatus having a holding unit for holding a pair of grips of the probe card wherein the grips are supported by being placed onto or suspended by the holding unit; a supporting unit for movably supporting the holding unit; and an elevation mechanism for moving the supporting unit up and down.Type: ApplicationFiled: November 27, 2006Publication date: June 7, 2007Applicant: TOKYO ELECTRON LIMITEDInventors: Chiaki Mochizuki, Munetoshi Nagasaka
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Publication number: 20070063720Abstract: A probe card transfer assist apparatus for assisting an operation of transferring a probe card used in an electrical inspection apparatus includes a holder for holding the probe card; a support for supporting the holder in a freely-rotate manner about a point; and an elevation unit for moving the support up and down. Further, an inspection equipment includes an electrical inspection apparatus; and a probe card transfer assist apparatus for assisting an operation of transferring a probe card used in the electrical inspection apparatus, the assist apparatus including a holder for holding the probe card; a support for supporting the holder in a freely-rotating manner about a point; and an elevation unit for moving the support up and down.Type: ApplicationFiled: September 20, 2006Publication date: March 22, 2007Applicant: TOKYO ELECTRON LIMITEDInventors: Munetoshi Nagasaka, Chiaki Mochizuki
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Patent number: D589474Type: GrantFiled: December 6, 2007Date of Patent: March 31, 2009Assignee: Tokyo Electron LimitedInventors: Ikuo Ogasawara, Munetoshi Nagasaka
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Patent number: D589912Type: GrantFiled: December 6, 2007Date of Patent: April 7, 2009Assignee: Tokyo Electron LimitedInventors: Ikuo Ogasawara, Munetoshi Nagasaka
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Patent number: D609652Type: GrantFiled: January 22, 2009Date of Patent: February 9, 2010Assignee: Tokyo Electron LimitedInventors: Munetoshi Nagasaka, Ikuo Ogasawara, Eiichi Shinohara
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Patent number: D612879Type: GrantFiled: April 4, 2006Date of Patent: March 30, 2010Assignee: Tokyo Electron LimitedInventor: Munetoshi Nagasaka