The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 30, 2022

Filed:

Oct. 23, 2019
Applicant:

Mitsubishi Materials Corporation, Tokyo, JP;

Inventors:

Satoru Mori, Saitama, JP;

Satoshi Kumagai, Osaka, JP;

U Tani, Osaka, JP;

Yuuji Sato, Waki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 14/14 (2006.01); C22C 9/00 (2006.01); B22D 7/00 (2006.01); B22F 3/16 (2006.01); C23C 14/34 (2006.01); H01L 21/285 (2006.01);
U.S. Cl.
CPC ...
C22C 9/00 (2013.01); B22D 7/005 (2013.01); B22F 3/162 (2013.01); C23C 14/14 (2013.01); C23C 14/3407 (2013.01); B22F 2301/10 (2013.01); H01L 21/2855 (2013.01);
Abstract

A sputtering target material contains one kind or two or more kinds selected from the group consisting of Ag, As, Pb, Sb, Bi, Cd, Sn, Ni, and Fe in a range of 5 massppm or more and 50 massppm or less, in terms of a total content; and a balance consisting of Cu and an inevitable impurity. In the sputtering target material, in a case in which an average crystal grain size calculated as an area average without twins is denoted by X1 (μm), and a maximum intensity of pole figure is denoted by X2, upon an observation with an electron backscatter diffraction method, Expression (1): 2500>19×X1+290×X2 is satisfied, a kernel average misorientation (KAM) of a crystal orientation measured by an electron backscatter diffraction method is 2.0° or less, and a relative density is 95% or more.


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