Method of fabricating a perpendicular recording write head having a gap with two portions

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United States of America Patent

PATENT NO 7726009
SERIAL NO

11779218

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method of fabricating a write head for perpendicular recording includes forming a pole layer on an undercoat layer, forming a mask over at least a portion of the pole layer, and forming the pole by removing material from the pole layer. The method further includes forming a first gap portion of a gap along a first side and a second side of the pole, forming a protective layer over at least a portion of the first gap portion, removing the mask, and removing the protective layer. The method further includes forming a second gap portion of the gap over at least a top surface of the pole and forming a shield over at least the second gap portion.

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Patent Owner(s)

  • WESTERN DIGITAL (FREMONT), INC.;WESTERN DIGITAL (FREMONT), LLC

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Benjamin San Jose, US 51 1609
Liu, Yinshi Foster City, US 29 866
Sin, Kyusik Pleasanton, US 47 7061
Yuan, Hongping Fremont, US 30 3819

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