Patent ID: 7780826

Claim:
A Cr-doped FeCoB based target material which is produced by a method comprising the steps of: providing raw-materials of two or more kinds of FeCoB based alloy powders which are different in composition from each other, wherein at least one of the FeCoB based alloy powders comprises Fe and Co in a total amount of 60 atom % or more such that Fe:Co atomic ratio is within a range of 70:30 to 40:60, and comprises Cr in an amount which is from 15 to 25 atom % greater than B; mixing the two or more kinds of the FeCoB based alloy powder together to obtain a powder mixture; and consolidating the powder mixture to form a target material, wherein the Cr-doped FeCoB based target material has a maximum magnetic permeability of 25 of less.