SG11201501175TA - Tantalum sputtering target and method for producing same - Google Patents

Tantalum sputtering target and method for producing same

Info

Publication number
SG11201501175TA
SG11201501175TA SG11201501175TA SG11201501175TA SG11201501175TA SG 11201501175T A SG11201501175T A SG 11201501175TA SG 11201501175T A SG11201501175T A SG 11201501175TA SG 11201501175T A SG11201501175T A SG 11201501175TA SG 11201501175T A SG11201501175T A SG 11201501175TA
Authority
SG
Singapore
Prior art keywords
sputtering target
producing same
tantalum sputtering
tantalum
producing
Prior art date
Application number
SG11201501175TA
Inventor
Shinichiro Senda
Kotaro Nagatsu
Original Assignee
Jx Nippon Mining & Metals Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jx Nippon Mining & Metals Corp filed Critical Jx Nippon Mining & Metals Corp
Publication of SG11201501175TA publication Critical patent/SG11201501175TA/en

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/32Gas-filled discharge tubes
    • H01J37/34Gas-filled discharge tubes operating with cathodic sputtering
    • H01J37/3411Constructional aspects of the reactor
    • H01J37/3414Targets
    • H01J37/3426Material
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00Nitrogen; Compounds thereof
    • C01B21/06Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron
    • C01B21/0615Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron with transition metals other than titanium, zirconium or hafnium
    • C01B21/0617Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron with transition metals other than titanium, zirconium or hafnium with vanadium, niobium or tantalum
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C27/00Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
    • C22C27/02Alloys based on vanadium, niobium, or tantalum
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/16Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
    • C22F1/18High-melting or refractory metals or alloys based thereon
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14Metallic material, boron or silicon
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14Metallic material, boron or silicon
    • C23C14/16Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/34Sputtering
    • C23C14/3407Cathode assembly for sputtering apparatus, e.g. Target
    • C23C14/3414Metallurgical or chemical aspects of target preparation, e.g. casting, powder metallurgy
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/02104Forming layers
    • H01L21/02107Forming insulating materials on a substrate
    • H01L21/02225Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
    • H01L21/0226Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
    • H01L21/02263Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
    • H01L21/02266Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by physical ablation of a target, e.g. sputtering, reactive sputtering, physical vapour deposition or pulsed laser deposition
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
    • H01L21/18Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
    • H01L21/28Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
    • H01L21/283Deposition of conductive or insulating materials for electrodes conducting electric current
    • H01L21/285Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
    • H01L21/18Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
    • H01L21/28Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
    • H01L21/283Deposition of conductive or insulating materials for electrodes conducting electric current
    • H01L21/285Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
    • H01L21/28506Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers
    • H01L21/28512Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table
    • H01L21/2855Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table by physical means, e.g. sputtering, evaporation
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/70Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
    • H01L21/71Manufacture of specific parts of devices defined in group H01L21/70
    • H01L21/768Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
    • H01L21/76838Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
    • H01L21/76841Barrier, adhesion or liner layers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00Details of semiconductor or other solid state devices
    • H01L23/52Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
    • H01L23/522Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
    • H01L23/532Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body characterised by the materials
    • H01L23/53204Conductive materials
    • H01L23/53209Conductive materials based on metals, e.g. alloys, metal silicides
    • H01L23/53228Conductive materials based on metals, e.g. alloys, metal silicides the principal metal being copper
    • H01L23/53238Additional layers associated with copper layers, e.g. adhesion, barrier, cladding layers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001Technical content checked by a classifier
    • H01L2924/0002Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Plasma & Fusion (AREA)
  • Analytical Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Physical Vapour Deposition (AREA)
  • Forging (AREA)
SG11201501175TA 2012-12-19 2013-12-06 Tantalum sputtering target and method for producing same SG11201501175TA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012276883 2012-12-19
PCT/JP2013/082764 WO2014097897A1 (en) 2012-12-19 2013-12-06 Tantalum sputtering target and method for producing same

Publications (1)

Publication Number Publication Date
SG11201501175TA true SG11201501175TA (en) 2015-05-28

Family

ID=50978232

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201501175TA SG11201501175TA (en) 2012-12-19 2013-12-06 Tantalum sputtering target and method for producing same

Country Status (9)

Country Link
US (1) US10490393B2 (en)
EP (1) EP2878699B1 (en)
JP (1) JP5847309B2 (en)
KR (2) KR20170036120A (en)
CN (1) CN105431565B (en)
IL (1) IL237919B (en)
SG (1) SG11201501175TA (en)
TW (1) TWI580796B (en)
WO (1) WO2014097897A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG11201501370PA (en) 2012-12-19 2015-04-29 Jx Nippon Mining & Metals Corp Tantalum sputtering target and method for producing same
JP5905600B2 (en) 2013-03-04 2016-04-20 Jx金属株式会社 Tantalum sputtering target and manufacturing method thereof
JP5969138B2 (en) 2013-10-01 2016-08-17 Jx金属株式会社 Tantalum sputtering target
CN107532287B (en) 2015-05-22 2019-11-05 捷客斯金属株式会社 Tantalum spattering target and its manufacturing method
JP6293929B2 (en) 2015-05-22 2018-03-14 Jx金属株式会社 Tantalum sputtering target and manufacturing method thereof
TW201738395A (en) * 2015-11-06 2017-11-01 塔沙Smd公司 Method of making a tantalum sputtering target with increased deposition rate
JP7053411B2 (en) * 2018-08-31 2022-04-12 株式会社アイシン Manufacturing method of metal parts
CN109338316B (en) * 2018-09-12 2020-04-28 中南大学 Ultra-pure tantalum with controllable structure and texture and preparation method and application thereof

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1180942A (en) 1997-09-10 1999-03-26 Japan Energy Corp Ta sputtering target, its production and assembled body
US6348139B1 (en) 1998-06-17 2002-02-19 Honeywell International Inc. Tantalum-comprising articles
JP4817536B2 (en) 2001-06-06 2011-11-16 株式会社東芝 Sputter target
US7081148B2 (en) 2001-09-18 2006-07-25 Praxair S.T. Technology, Inc. Textured-grain-powder metallurgy tantalum sputter target
JP4883546B2 (en) 2002-09-20 2012-02-22 Jx日鉱日石金属株式会社 Method for manufacturing tantalum sputtering target
JP4263900B2 (en) 2002-11-13 2009-05-13 日鉱金属株式会社 Ta sputtering target and manufacturing method thereof
US6794753B2 (en) 2002-12-27 2004-09-21 Lexmark International, Inc. Diffusion barrier and method therefor
JP4672967B2 (en) 2003-01-10 2011-04-20 Jx日鉱日石金属株式会社 Target manufacturing method
CN1771350A (en) 2003-04-01 2006-05-10 株式会社日矿材料 Tantalum spattering target and method of manufacturing the same
CN101857950B (en) * 2003-11-06 2012-08-08 Jx日矿日石金属株式会社 Tantalum sputtering target
KR100559395B1 (en) 2003-11-10 2006-03-10 현대자동차주식회사 Micro boring bearing
US7686926B2 (en) 2004-05-26 2010-03-30 Applied Materials, Inc. Multi-step process for forming a metal barrier in a sputter reactor
US7998287B2 (en) 2005-02-10 2011-08-16 Cabot Corporation Tantalum sputtering target and method of fabrication
JP5126742B2 (en) 2005-04-28 2013-01-23 Jx日鉱日石金属株式会社 Sputtering target
US8425696B2 (en) 2005-10-04 2013-04-23 Jx Nippon Mining & Metals Corporation Sputtering target
US20090078580A1 (en) 2005-12-02 2009-03-26 Ulvac, Inc. Method for Forming Cu Film
JP4714123B2 (en) 2006-10-30 2011-06-29 株式会社東芝 Method for producing high purity Ta material for sputtering target
JPWO2009107763A1 (en) 2008-02-29 2011-07-07 新日鉄マテリアルズ株式会社 Metal-based sputtering target material
JP5583140B2 (en) 2008-12-02 2014-09-03 アリゾナ・ボード・オブ・リージェンツ,フォー・アンド・オン・ビハーフ・オブ・アリゾナ・ステート・ユニバーシティ Method for preparing flexible substrate assembly and flexible substrate assembly prepared by the method
SG173141A1 (en) 2009-05-22 2011-08-29 Jx Nippon Mining & Metals Corp Tantalum sputtering target
CN102460646A (en) 2009-05-29 2012-05-16 代表亚利桑那大学的亚利桑那校董会 Method of providing flexible semiconductor device at high temperatures and flexible semiconductor device thereof
SG184778A1 (en) 2009-08-11 2012-10-30 Jx Nippon Mining & Metals Corp Tantalum sputtering target
US20120037501A1 (en) * 2009-08-11 2012-02-16 Jx Nippon Mining & Metals Corporation Tantalum Sputtering Target
DE112010003274T5 (en) * 2009-08-12 2012-12-27 Ulvac, Inc. Method for producing a sputtering target and sputtering target
KR20150038585A (en) * 2009-11-17 2015-04-08 가부시끼가이샤 도시바 Tantalum sputtering target, method for manufacturing tantalum sputtering target, and method for manufacturing semiconductor device
KR101051945B1 (en) 2009-12-02 2011-07-27 황도희 How to prepare instant seasoned ribs sauce
SG186766A1 (en) 2010-08-09 2013-02-28 Jx Nippon Mining & Metals Corp Tantalum spattering target
SG186765A1 (en) 2010-08-09 2013-02-28 Jx Nippon Mining & Metals Corp Tantalum sputtering target
CN103827348B (en) 2011-11-30 2015-11-25 吉坤日矿日石金属株式会社 Tantalum sputtering target and manufacture method thereof
CN104204282B (en) 2012-03-21 2017-05-24 吉坤日矿日石金属株式会社 Tantalum sputtering target, method for manufacturing same, and barrier film for semiconductor wiring formed by using target
SG11201501370PA (en) 2012-12-19 2015-04-29 Jx Nippon Mining & Metals Corp Tantalum sputtering target and method for producing same
JP5905600B2 (en) 2013-03-04 2016-04-20 Jx金属株式会社 Tantalum sputtering target and manufacturing method thereof
JP5969138B2 (en) 2013-10-01 2016-08-17 Jx金属株式会社 Tantalum sputtering target
US20160208377A1 (en) 2014-03-27 2016-07-21 Jx Nippon Mining & Metals Corporation Tantalum sputtering target and method for producing same

Also Published As

Publication number Publication date
KR20170036120A (en) 2017-03-31
JP5847309B2 (en) 2016-01-20
IL237919B (en) 2018-02-28
TW201439335A (en) 2014-10-16
EP2878699A1 (en) 2015-06-03
CN105431565A (en) 2016-03-23
WO2014097897A1 (en) 2014-06-26
JPWO2014097897A1 (en) 2017-01-12
TWI580796B (en) 2017-05-01
EP2878699A4 (en) 2016-03-30
KR20150046278A (en) 2015-04-29
EP2878699B1 (en) 2020-07-15
US10490393B2 (en) 2019-11-26
CN105431565B (en) 2018-06-05
KR101950549B1 (en) 2019-02-20
US20150279637A1 (en) 2015-10-01

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