Method of forming patterned magnetic media
AssigneeSeagate Technology LLC
InventorsShuaigang Xiao, Thomas Chang, Kim Yang Lee, XiaoMin Yang, Jiansheng Wu
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Abstract
A method of forming patterned magnetic media disclosed herein includes patterning a guiding layer on a substrate to form a nucleation guiding pattern. A layer of magnetic material is formed over the nucleation guiding pattern. The magnetic material may comprise a non-magnetic segregant. Magnetic grains are grown in a down-track direction and in a cross-track direction responsive to the nucleation guiding pattern and the non-magnetic segregant forms grain boundaries between the magnetic grains.
Claims20
A method of forming patterned magnetic media, the method comprising the steps of:
- patterning a guiding layer on a substrate to form a nucleation guiding pattern;
- forming a layer of magnetic material over the nucleation guiding pattern, wherein the magnetic material comprises a non-magnetic segregant;
- and
- growing magnetic grains in a down-track direction and in a cross-track direction responsive to the nucleation guiding pattern, wherein the non-magnetic segregant forms grain boundaries between the magnetic grains.
A system comprising:
- a patterned magnetic media including magnetic grains substantially aligned in a down-track direction and magnetic grains substantially aligned in a cross-track direction wherein the magnetic grains are formed responsive to a nucleation guiding pattern;
- an actuator assembly comprising a writer;
- and
- a controller configured to control the writer to write an individual data bit by generating magnetic transitions in the magnetic grains of the patterned media.
Dependencies are inferred from the claim text.