Nonmagnetic material particle-dispersed ferromagnetic material sputtering target

US9103023B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9103023-B2
Application numberUS-201013131124-A
CountryUS
Kind codeB2
Filing dateMar 8, 2010
Priority dateMar 27, 2009
Publication dateAug 11, 2015
Grant dateAug 11, 2015

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Abstract

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A nonmagnetic material particle-dispersed ferromagnetic material sputtering target comprising a mixture of an alloy containing 5 mol % or more and 20 mol % or less of Cr, 5 mol % or more and 30 mol % or less of Pt, and Co as the remainder thereof, and nonmagnetic material particles, wherein the structure of the target includes a phase (A) in which the nonmagnetic material particles are uniformly micro-dispersed in the alloy, and a spherical alloy phase (B) dispersed in the phase (A) in which the ratio of its volume in the target is 4% or more and 40% or less. Obtained is a nonmagnetic material particle-dispersed ferromagnetic material sputtering target capable of improving the leakage magnetic flux to obtain a stable electrical discharge with a magnetron sputtering device, and which has high density and generates few particles during sputtering.

First claim

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The invention claimed is: 1. A ferromagnetic material sputtering target, comprising a sintered compact consisting of Cr of 5 mol % or more and 20 mol % or less, Co, and particles of nonmagnetic material, wherein the sintered compact has a structure having an alloy phase (A) as a matrix in which the particles of the nonmagnetic material and an alloy phase (B) in the form of spherical or spheroidal three dimensional shaped particles of a Co—Cr alloy not containing the particles of th…

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What does patent US9103023B2 cover?
A nonmagnetic material particle-dispersed ferromagnetic material sputtering target comprising a mixture of an alloy containing 5 mol % or more and 20 mol % or less of Cr, 5 mol % or more and 30 mol % or less of Pt, and Co as the remainder thereof, and nonmagnetic material particles, wherein the structure of the target includes a phase (A) in which the nonmagnetic material particles are uniforml…
Who is the assignee on this patent?
Sato Atsushi, Jx Nippon Mining & Metals Corp
What technology area does this patent fall under?
Primary CPC classification C23C14/3414. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Aug 11 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).