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.
Patent No.:
Date of Patent:
Oct. 29, 2013
Filed:
May. 11, 2012
Feiyue LI, Fremont, CA (US);
Xiaomin Liu, Milpitas, CA (US);
Feiyue Li, Fremont, CA (US);
Xiaomin Liu, Milpitas, CA (US);
Headway Technologies, Inc., Milpitas, CA (US);
Abstract
A magnetic layer that may serve as a top pole layer and bottom pole layer in a magnetic write head is disclosed. The magnetic layer has a composition represented by FeCoNiVin which w, x, y, and z are the atomic % of Fe, Co, Ni, and V, respectively, and where w is between about 60 and 85, x is between about 10 and 30, y is between 0 and about 20, z is between about 0.1 and 3, and wherein w+x+y+z=100. An electroplating process having a plating current density of 3 to 30 mA/cmis used to deposit the magnetic layer and involves an electrolyte solution with a small amount of VOSOwhich is the V source. The resulting magnetic layer has a magnetic saturation flux density Bgreater than 1.9 Telsa and a resistivity ρ higher than 70 μohms-cm.