Seagate Technology Incorporated

Kueir-Weei Chour

Chung Yuang Shih

Connie C Liu

Liji Huang

Kuo-Hsing Hwang

Jie-Ming Yu

Qixu David Chen

Paul Stephen McLeod

Erol Girt

Mariana Rodica Munteanu

Jean Ling Lee

Miaogen Lu

Shanghsien Alex Rou

Rajiv Yadav Ranjan

Charles Chengyea Leu

Jing Gui

Thomas P Nolan

Xiaoding Ma

Huan H Tang

Raj Thangaraj

Lin Huang

Xinwei Li

Romulo Ata

John Wang

Chun Wang

Alexander Hazanov

Apparatus for recording data and method for making the same. In accordance with some embodiments, a magnetic layer is supported by a substrate and comprises a magnetic magnetic material, a non-magnetic material, and an energy assisted segregation material. The segregation material enhances segregation of the non-magnetic material into grain boundaries within the layer at an elevated, moderate energy level.

Perpendicular recording media with enhanced anisotropy through energy assisted segregation

An ion source is provided. The ion source comprises a first cylindrical anode and a second cylindrical anode. The first cylindrical anode is concentric with the second cylindrical anode. The ion source further comprises an electron source positioned within the first cylindrical anode or the second cylindrical anode.

Multiple anode ion source

A magnetic recording medium having a Au, Ag-containing magnetic layer having Co, Cr, Ag and Au; the magnetic recording layer having Co-containing magnetic grains surrounded by substantially nonmagnetic Cr-containing grain boundaries; wherein said Ag and said Au are substantially immiscible in the Co-containing magnetic grains is disclosed.

Magnetic storage media with Ag, Au-containing magnetic layers

The invention relates to a perpendicular magnetic recording medium having a substrate and a seed layer comprising a Ni alloy.

Nickel based alloy layer for perpendicular recording media

The invention relates an ion source for ion beam deposition comprising multiple anodes, wherein the ion source deposits multiple zones of a source material and thicknesses of at least two of the multiple zones are different.

Two-zone ion beam carbon deposition

Oriented longitudinal magnetic recording media on direct texture glass or glass-ceramic substrate with a film structure of one or more Ni-containing layer, a Cr-containing underlayer, a Co-containing magnetic layer and carbon overcoat exhibits are capable of achieving Mrt OR of &#x3e;1.5, preferably &#x3e;1.85. Such highly oriented glass media shows a significant SNR (&#x3e;2 dB) and parametric improvement over the counterpart isotropic media with the same film structure on non-textured glass or glass-ceramic substrates.

Highly oriented longitudinal magnetic media on direct textured glass substrates

A component of a recording device comprising a magnetic layer, means for improving corrosion resistance of the magnetic layer and a carbon overcoat, and a method of making and using the same are disclosed. The means for improving corrosion resistance of the magnetic layer comprises a sealing layer comprising a refractory metal or a refractory metal-containing alloy.

Component of a magnetic recording medium with sealing layer for corrosion protection

A magnetic recording medium is provided with a dual layer protective overcoat system comprising a SiC corrosion barrier layer and a carbon-containing protective overcoat thereon. The SiC layer effectively prevents or significantly reduces Co and Ni diffusion to the medium surface. Embodiments include magnetic recording media comprising a SiC corrosion barrier layer over a magnetic layer, an overlying protective layer of amorphous hydrogenated carbon, amorphous nitrogenated carbon or amorphous hydrogen-nitrogenated carbon, and a lubricant topcoat thereon. Embodiments of the present invention further include magnetic recording media comprising Ni&mdash;P plated aluminum, Ni-plated glass or non-conductive substrates including glass, glass-ceramic and ceramic materials. Embodiments of the present invention further include a dual protective overcoat system having a combined thickness less than about 100 &angst;, such as less than about 75 &angst;, e.g., less than about 50 &angst;, with the SiC corrosion barrier layer having a thickness ranging from 1 &angst; to 40 &angst;.

Magnetic recording media comprising a silicon carbide corrosion barrier layer and a c-overcoat

A magnetic recording medium is formed with dual carbon-containing protective layers having a combined thickness of less than about 100 &angst; with high corrosion resistance and superior magnetic performance. Embodiments of the present invention include sputter depositing a first protective layer of hydrogenated carbon at a density of at least 1.9 while applying a DC bias of about 250V to about 400V to the substrate, and sputter depositing a second protective layer comprising nitrogen-doped hydrogenated carbon on the first protective layer.

Magnetic recording medium with high density, thin dual carbon overcoats

Magnetic recording medium with high density thin dual carbon overcoats

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San Jose, CA, United States of America

Kueir-Weei Chour