Electrical lapping guide disposed laterally relative to a shield pedestal

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7554767
SERIAL NO

11172773

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Methods are provided for fabricating an electrical lapping guide, and for using the electrical lapping guide to fabricate a transducer of a magnetic recording head. Additionally, transducers comprising an electrical lapping guide are also provided. Methods of fabricating the electrical lapping guide comprise forming a resistive element proximate to a shield pedestal. Accordingly, the resistive element is both aligned with the shield pedestal in a transverse direction, and closely spaced from the shield pedestal in a longitudinal direction. The resistance of the resistive element correlates well with a throat height of the shield pedestal, and the correlation is utilized in the methods of fabricating the transducer. When a magnetoresistive stripe is uses as a second electrical lapping guide while fabricating the transducer, the two can be used to control a tilt angle in the transverse direction during lapping.

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Patent Owner(s)

Patent OwnerAddress
WESTERN DIGITAL TECHNOLOGIES INC5601 GREAT OAKS PARKWAY SAN JOSE CA 95119

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Yingjian Fremont, US 80 10109
Hu, Yining Fremont, US 12 1263
Liu, Jun San Ramon, US 1497 18125
Stoev, Kroum S Pleasanton, US 44 5358
Thomas, Mark D Hollister, US 16 1450

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