Method for forming a magnetic thin film head with recessed basec

Details Method for forming a magnetic thin film head with recessed basec Method for forming a magnetic thin film head with recessed basec

1995-04-12

1997-12-23

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

360123, 360126, G11B 542

Patent

active

056996055

ABSTRACT:
A thin film magnetic head is carried in a recessed region which is etched in a basecoat. The thin film magnetic head includes upper and lower pole pieces having an upper pole tip and a lower pole tip, respectively. The upper and lower pole tips form a magnetic flux gap. Electrical conductors are carried in an insulating layer between the upper and lower pole pieces. The magnetic flux gap defines a plane which is generally parallel with a plane defined by the conductors. The electrical conductors lie on either side of the plane.

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Cross Section of IBM Head of Jan. 20, 1989.
Two Cross Sections of Yamaha Head of Sep. 1989.
Cross section of AMC Head of Sep. 18, 1990.

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