Thin-film magnetic head including thin-film coil and lead...

Details Thin-film magnetic head including thin-film coil and lead... Thin-film magnetic head including thin-film coil and lead...

2005-01-11

2005-01-11

Evans, Jefferson (Department: 2652)

Dynamic magnetic information storage or retrieval

Head

Core

C360S123090

Reexamination Certificate

active

06842307

ABSTRACT:
A thin-film magnetic head comprises a bottom pole layer, a top pole layer, a recording gap layer, and first and second thin-film coils. The bottom pole layer includes a first layer disposed to face toward the first and second thin-film coils, and second and third layers disposed closer to an air bearing surface than the first and second thin-film coils are. In a method of manufacturing the thin-film magnetic head, the first thin-film coil and the second layer are formed in this order on a magnetic layer that has a wholly flat top surface and is to be the first layer. Then, the magnetic layer is patterned to complete the first layer.

REFERENCES:
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patent: A 2001-76316 (2001-03-01), None
U.S. patent application Ser. No. 09/592,297, Sasaki, filed Jun. 12, 2000.

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