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Title:
金属線及びソーワイヤー
Document Type and Number:
Japanese Patent JP6751900
Kind Code:
B2
Abstract:
A metal wire containing tungsten is provided. A tungsten content of the metal wire is at least 90 wt %. A tensile strength of the metal wire is at least 4000 MPa. An elastic modulus of the metal wire is at least 350 GPa and at most 450 GPa. A diameter of the metal wire is at most 60 μm. An average crystal grain size of the metal wire in a cross-section orthogonal to an axis of the metal wire is at most 0.20 μm.

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Inventors:
Tomohiro Kanazawa
Naoki Kamiyama
Takahiro Iguchi
Sasakawa Courage
Tetsuji Shibata
Toshiyuki Tani
Application Number:
JP2018012955A
Publication Date:
September 09, 2020
Filing Date:
January 29, 2018
Export Citation:
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Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
C22C27/04; B24B27/06; B28D5/04; H01L21/304
Domestic Patent References:
JP6249319B1
JP2019131841A
Attorney, Agent or Firm:
Hiromori Arai
Eisaku Teratani
Shinichi Michisaka



 
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