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US 8,893,376 B1Granted
Method of forming a straight top main pole for PMR bevel writer
AssigneeWestern Digital (Fremont), LLC
InventorsChangqing Shi, Ming Jiang
Life of this patent
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Abstract
A method of forming a magnetic recording head is provided. The method comprises the steps of forming a damascene trench comprising a lower region having a substantially trapezoidal cross-section and an upper region having a substantially rectangular cross-section, and providing a magnetic material within the damascene trench.
Claims10
A method of forming a magnetic recording head, comprising:
- forming a damascene trench comprising a lower region having a trapezoidal cross-section and an upper region having a rectangular cross-section;
- providing a magnetic material within the damascene trench, wherein the magnetic material forms a throat region extending to an air bearing surface of the magnetic recording head, the throat region comprising:
- a lower portion having a trapezoidal cross-section at the air bearing surface;
- and
- an upper portion having a rectangular cross-section at the air bearing surface;
- and
- removing a portion of the magnetic material in the upper portion to form a beveled surface such that the beveled surface is confined in the upper portion.
4 more elements
Dependencies are inferred from the claim text.