Patents by Inventor Yasuhiro Yamakoshi
Yasuhiro Yamakoshi 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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Publication number: 20120098131Abstract: A nickel alloy sputtering target and a nickel silicide film formed with such a target are provided and enable the formation of a thermally stable silicide (NiSi) film, scarcely causing the aggregation of films or excessive formation of silicides, having low generation of particles upon forming the sputtered film, having favorable uniformity and superior plastic workability to the target, and which is particularly effective for the manufacture of a gate electrode material (thin film). The nickel alloy sputtering target contains 22 to 46 wt % of platinum and 5 to 100 wtppm of one or more components selected from iridium, palladium, and ruthenium, and remainder is nickel and inevitable impurities.Type: ApplicationFiled: January 5, 2012Publication date: April 26, 2012Applicant: JX NIPPON MINING & METALS CORPORATIONInventor: Yasuhiro Yamakoshi
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Patent number: 8114341Abstract: Provided are a nickel alloy sputtering target, and a nickel silicide film formed with such a target, enabling the formation of a thermally stable silicide (NiSi) film, scarcely causing the aggregation of films or excessive formation of silicides, having low generation of particles upon forming the sputtered film, having favorable uniformity and superior plastic workability to the target, and which is particularly effective for the manufacture of a gate electrode material (thin film). This nickel alloy sputtering target contains 22 to 46 wt % of platinum and 5 to 100 wtppm of one or more components selected from iridium, palladium, and ruthenium, and remainder is nickel and inevitable impurities.Type: GrantFiled: January 22, 2010Date of Patent: February 14, 2012Assignee: JX Nippon Mining & Metals CorporationInventor: Yasuhiro Yamakoshi
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Patent number: 8062440Abstract: A hafnium alloy target containing either or both of Zr and Ti in a gross amount of 100 wtppm-10 wt % in Hf, wherein the average crystal grain size is 1-100 ?m, the impurities of Fe, Cr and Ni are respectively 1 wtppm or less, and the habit plane ratio of the plane {002} and three planes {103}, {014} and {015} lying within 35° from {002} is 55% or greater, and the variation in the total sum of the intensity ratios of these four planes depending on locations is 20% or less. As a result, obtained is a hafnium alloy target having favorable deposition property and deposition speed, which generates few particles, and which is suitable for forming a high dielectric gate insulation film such as HfO or HfON film, and the manufacturing method thereof.Type: GrantFiled: September 4, 2008Date of Patent: November 22, 2011Assignee: JX Nippon Mining & Metals CorporationInventors: Takeo Okabe, Shuichi Irumata, Yasuhiro Yamakoshi, Hirohito Miyashita, Ryo Suzuki
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Publication number: 20110155570Abstract: Provided are a barrier film for a semiconductor wiring containing Ni with its remainder being W and unavoidable impurities and having a composition of WxNiy (70?x?90, 10?y?30 unit: atomic percent), and a sintered compact sputtering target for forming a barrier film for a semiconductor wiring containing Ni with its remainder being W and unavoidable impurities and having a composition of WxNiy (70?x?90, 10?y?30, unit: atomic percent), and comprising a target structure configured from a W matrix and Ni particles existing therein and in which W is diffused in the Ni particles.Type: ApplicationFiled: April 5, 2010Publication date: June 30, 2011Applicant: JX NIPPON MINING & METALS CORPORATIONInventors: Shinichiro Senda, Yasuhiro Yamakoshi, Junichi Ito
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Publication number: 20110135942Abstract: Provided are a nickel alloy sputtering target, and a nickel silicide film formed with such a target, enabling the formation of a thermally stable silicide (NiSi) film, scarcely causing the aggregation of films or excessive formation of silicides, having low generation of particles upon forming the sputtered film, having favorable uniformity and superior plastic workability to the target, and which is particularly effective for the manufacture of a gate electrode material (thin film). This nickel alloy sputtering target contains 22 to 46 wt % of platinum and 5 to 100 wtppm of one or more components selected from iridium, palladium, and ruthenium, and remainder is nickel and inevitable impurities.Type: ApplicationFiled: January 22, 2010Publication date: June 9, 2011Applicant: JX NIPPON MINING & METALS CORPORATIONInventor: Yasuhiro Yamakoshi
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Publication number: 20110129688Abstract: An object of the present invention is to provide a plated object having a thin seed layer of uniform thickness that enables the fabrication of ultrafine wiring thereon in which, when the seed layer is formed by electroless copper plating, the uniformity and adherence thereof are improved over the aforementioned case in which electroless copper plating is performed on an elemental metal such as tungsten, molybdenum, etc., and the aforementioned complexity of forming two layers of a barrier layer and a catalyst metal layer before forming the copper seed layer is eliminated.Type: ApplicationFiled: July 13, 2009Publication date: June 2, 2011Inventors: Junichi Ito, Atsushi Yabe, Junnosuke Sekiguchi, Toru Imori, Yasuhiro Yamakoshi, Shinichiro Senda
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Patent number: 7938918Abstract: A high purity Ni—V alloy, high purity Ni—V alloy target and high purity Ni—V alloy thin film wherein the purity of the Ni—V alloy excluding Ni, V and gas components is 99.9 wt % or higher, and the V content variation among ingots, targets or thin films is within 0.4%. With these high purity Ni—V alloy, high purity Ni—V alloy target and high purity Ni—V alloy thin film having a purity of 99.9 wt % or higher, the variation among ingots, targets or thin films is small, the etching property is improved, and isotopic elements such as U and Th that emit alpha particles having an adverse effect on microcircuits in a semiconductor device are reduced rigorously. Further provided is a method of manufacturing such high purity Ni—V alloys capable of effectively reducing the foregoing impurities.Type: GrantFiled: June 9, 2010Date of Patent: May 10, 2011Assignee: JX Nippon Mining & Metals CorporationInventors: Yuichiro Shindo, Yasuhiro Yamakoshi
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Publication number: 20110017590Abstract: Disclosed is a sintered compact target containing an element (A) and an element (B) below, wherein the sintered compact target is free from pores having an average diameter of 1 ?m or more, and the number of micropores having an average diameter of less than 1 ?m existing in 40000 ?m2 of the target surface is 100 micropores or less: (A): one or more chalcogenide elements selected from S, Se, and Te; and (B): one or more Vb group elements selected from Bi, Sb, As, P, and N. The provided technology is able to eliminate the source of grain dropping or generation of nodules in the target during sputtering, and additionally inhibit the generation of particles.Type: ApplicationFiled: December 9, 2008Publication date: January 27, 2011Applicant: JX NIPPON MINING & METALS CORPORATIONInventors: Hideaki Fukuyo, Masataka Yahagi, Yasuhiro Yamakoshi, Hideyuki Takahashi
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Publication number: 20100242674Abstract: A high purity Ni—V alloy, high purity Ni—V alloy target and high purity Ni—V alloy thin film wherein the purity of the Ni—V alloy excluding Ni, V and gas components is 99.9 wt % or higher, and the V content variation among ingots, targets or thin films is within 0.4%. With these high purity Ni—V alloy, high purity Ni—V alloy target and high purity Ni—V alloy thin film having a purity of 99.9 wt % or higher, the variation among ingots, targets or thin films is small, the etching property is improved, and isotopic elements such as U and Th that emit alpha particles having an adverse effect on microcircuits in a semiconductor device are reduced rigorously. Further provided is a method of manufacturing such high purity Ni—V alloys capable of effectively reducing the foregoing impurities.Type: ApplicationFiled: June 9, 2010Publication date: September 30, 2010Applicant: NIPPON MINING AND METALS CO., LTD.Inventors: Yuichiro Shindo, Yasuhiro Yamakoshi
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Patent number: 7740718Abstract: Provided is high purity nickel or nickel alloy target for magnetron sputtering having superior sputtering film uniformity and in which the magnetic permeability of the target is 100 or more, and this high purity nickel or a nickel alloy target for magnetron sputtering capable of achieving a favorable film uniformity (evenness of film thickness) and superior in plasma ignition (firing) even during the manufacturing process employing a 300 mm wafer. The present invention also provides the manufacturing method of such high purity nickel or nickel alloy target.Type: GrantFiled: November 28, 2002Date of Patent: June 22, 2010Assignee: Nippon Mining & Metals Co., Ltd.Inventors: Yasuhiro Yamakoshi, Hirohito Miyashita
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Publication number: 20100089622Abstract: A barrier film for a flexible copper substrate comprising a Co—Cr alloy film containing 5 to 30 wt % of Cr and a balance of unavoidable impurities and Co is provided. The barrier film has a thickness of 3 to 150 nm and a film thickness uniformity of 10% or less at 1?. A sputtering target for forming a barrier film comprising a Co—Cr alloy containing 5 to 30 wt % of Cr and a balance of unavoidable impurities and Co is also provided. The relative magnetic permeability in the in-plane direction of the sputtered face of the target is 100 or less. The barrier film for a flexible copper substrate and the sputtering target for forming such barrier film have a film thickness that is thin enough to prevent film peeling and inhibiting the diffusion of copper to a resin film such as polyimide, is capable of obtaining a sufficient barrier effect even in a minute wiring pitch and has barrier characteristics that will not change even when the temperature rises due to heat treatment or the like.Type: ApplicationFiled: December 17, 2009Publication date: April 15, 2010Applicant: NIPPON MINING & METALS CO., LTD.Inventors: Shuichi Irumata, Yasuhiro Yamakoshi
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Patent number: 7618505Abstract: Provided is high purity nickel or nickel alloy target for Magnetron sputtering having superior sputtering film uniformity and in which the magnetic permeability of the target is 100 or more, and this high purity nickel or a nickel alloy target for magnetron sputtering capable of achieving a favorable film uniformity (evenness of film thickness) and superior plasma ignition (firing) even during the manufacturing process employing a 300 mm wafer. The present invention also provides the manufacturing method of such high purity nickel or nickel alloy target.Type: GrantFiled: January 13, 2006Date of Patent: November 17, 2009Assignee: Nippon Mining & Metals Co., Ltd.Inventors: Yasuhiro Yamakoshi, Hirohito Miyashita
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Patent number: 7605481Abstract: The present invention relates to a nickel alloy sputtering target comprising 1 to 30 at % of Cu; 2 to 25 at % of at least one element selected from among V, Cr, Al, Si, Ti and Mo; remnant Ni and unavoidable impurities so as to inhibit the Sn diffusion between a solder bump and a substrate layer or a pad. Provided are a nickel alloy sputtering target and a nickel alloy thin film for forming a barrier layer having excellent wettability with the Pb-free Sn solder or Sn—Pb solder bump, and capable of inhibiting the diffusion of Sn being a soldering component and effectively preventing the reaction with the substrate layer upon forming a Pb-free Sn solder or Sn—Pb solder bump on a substrate such as a semiconductor wafer or electronic circuit or a substrate layer or pad of the wiring or electrode formed thereon.Type: GrantFiled: October 14, 2004Date of Patent: October 20, 2009Assignee: Nippon Mining & Metals Co., Ltd.Inventors: Yasuhiro Yamakoshi, Ryo Suzuki
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Publication number: 20090229975Abstract: Provided is a target formed of a sintering-resistant material of high-melting point metal alloy, high-melting point metal silicide, high-melting point metal carbide, high-melting point metal nitride or high-melting point metal boride comprising a structure in which a target material formed of a sintering-resistant material of high-melting point metal alloy, high-melting point metal silicide, high-melting point metal carbide, high-melting point metal nitride or high-melting point metal boride and a high-melting point metal plate other than the target material are bonded. Additionally provided is a production method of such a target capable of producing, with relative ease, a target formed of a sintering-resistant material of high-melting point metal alloy, high-melting point metal silicide, high-melting point metal carbide, high-melting point metal nitride or high-melting point metal boride, which has poor machinability, can relatively easily produced.Type: ApplicationFiled: January 30, 2008Publication date: September 17, 2009Applicant: NIPPON MINING & METALS CO., LTD.Inventor: Yasuhiro Yamakoshi
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Publication number: 20090057142Abstract: A hafnium alloy target containing either or both of Zr and Ti in a gross amount of 100 wtppm-10 wt % in Hf; wherein the average crystal grain size is 1-100 ?m, the impurities of Fe, Cr and Ni are respectively 1 wtppm or less, and the habit plane ratio of the plane {002} and three planes {103}, {014} and {015} lying within 35° from {002} is 55% or greater, and the variation in the total sum of the intensity ratios of these four planes depending on locations is 20% or less. As a result, obtained is a hafnium alloy target having favorable deposition property and deposition speed, which generates few particles, and which is suitable for forming a high dielectric gate insulation film such as HfO or HfON film, and the manufacturing method thereof.Type: ApplicationFiled: October 28, 2008Publication date: March 5, 2009Applicant: NIPPON MINING & METALS CO., LTD.Inventors: Takeo Okabe, Shuichi Irumata, Yasuhiro Yamakoshi, Hirohito Miyashita, Ryo Suzuki
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Publication number: 20090050475Abstract: A hafnium alloy target containing either or both of Zr and Ti in a gross amount of 100 wtppm?10 wt % in Hf, wherein the average crystal grain size is 1-100 ?m, the impurities of Fe, Cr and Ni are respectively 1 wtppm or less, and the habit plane ratio of the plane {002} and three planes {103}, {014} and {015} lying within 35° from {002} is 55% or greater, and the variation in the total sum of the intensity ratios of these four planes depending on locations is 20% or less. As a result, obtained is a hafnium alloy target having favorable deposition property and deposition speed, which generates few particles, and which is suitable for forming a high dielectric gate insulation film such as HfO or HfON film, and the manufacturing method thereof.Type: ApplicationFiled: October 28, 2008Publication date: February 26, 2009Applicant: NIPPON MINING & METALS CO., LTD.Inventors: Takeo Okabe, Shuichi Irumata, Yasuhiro Yamakoshi, Hirohito Miyashita, Ryo Suzuki
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Publication number: 20090008245Abstract: A method for connecting a magnetic substance target to a backing plate with less variation in plate thickness, characterized in having the steps of connecting the magnetic substance target to an aluminum plate beforehand while maintaining the flatness, connecting the magnetic substance target connected to the aluminum plate to the backing plate while maintaining the flatness, and grinding out the aluminum plate, whereby the flatness of the magnetic substance target can be maintained until the magnetic substance target is connected to the backing plate by a relatively simple operation.Type: ApplicationFiled: January 31, 2008Publication date: January 8, 2009Applicant: NIPPON MINING & METALS CO., LTD.Inventors: Yasuhiro Yamakoshi, Kenichi Mogaki
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Publication number: 20090000704Abstract: A hafnium alloy target containing either or both of Zr and Ti in a gross amount of 100 wtppm-10 wt % in Hf, wherein the average crystal grain size is 1-100 ?m, the impurities of Fe, Cr and Ni are respectively 1 wtppm or less, and the habit plane ratio of the plane {002} and three planes {103}, {014} and {015} lying within 35° from {002} is 55% or greater, and the variation in the total sum of the intensity ratios of these four planes depending on locations is 20% or less. As a result, obtained is a hafnium alloy target having favorable deposition property and deposition speed, which generates few particles, and which is suitable for forming a high dielectric gate insulation film such as HfO or HfON film, and the manufacturing method thereof.Type: ApplicationFiled: September 4, 2008Publication date: January 1, 2009Applicant: NIPPON MINING & METALS CO., LTD.Inventors: Takeo Okabe, Shuichi Irumata, Yasuhiro Yamakoshi, Hirohito Miyashita, Ryo Suzuki
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Patent number: 7459036Abstract: Provided is a hafnium alloy target containing either or both of Zr and Ti in a gross amount of 100 wtppm-10 wt % in Hf, wherein the average crystal grain size is 1-100 ?m, the impurities of Fe, Cr and Ni are respectively 1 wtppm or less, and the habit plane ratio of the plane {002} and three planes {103}, {014} and {015} lying within 35° from {002} is 55% or greater, and the variation in the total sum of the intensity ratios of these four planes depending on locations is 20% or less. As a result, obtained is a hafnium alloy target having favorable deposition property and deposition speed, which generates few particles, and which is suitable for forming a high dielectric gate insulation film such as HfO or HfON film, and the manufacturing method thereof.Type: GrantFiled: January 21, 2004Date of Patent: December 2, 2008Assignee: Nippon Mining & Metals Co., LtdInventors: Takeo Okabe, Shuichi Irumata, Yasuhiro Yamakoshi, Hirohito Miyashita, Ryo Suzuki
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Patent number: 7347353Abstract: A method for connecting a magnetic substance target to a backing plate with less variation in plate thickness, characterized in having the steps of connecting the magnetic substance target to an aluminum plate beforehand while maintaining the flatness, connecting the magnetic substance target connected to the aluminum plate to the backing plate while maintaining the flatness, and grinding out the aluminum plate, whereby the flatness of the magnetic substance target can be maintained until the magnetic substance target is connected to the backing plate by a relatively simple operation.Type: GrantFiled: November 14, 2002Date of Patent: March 25, 2008Assignee: Nippon Mining & Metals Co., Ltd.Inventors: Yasuhiro Yamakoshi, Kenichi Mogaki