Method for fabricating magnetic write heads

Details Method for fabricating magnetic write heads Method for fabricating magnetic write heads

2008-01-29

2008-01-29

Kim, Paul D. (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S603150, C029S603180, C029S417000, C216S065000, C360S122000, C360S125330, C360S317000, C427S127000, C427S128000, C451S005000, C451S041000

Reexamination Certificate

active

11172465

ABSTRACT:
A magnetic write head and method for bulk fabrication of the same are provided. A trench is formed in a nonmagnetic substrate. A first magnetically permeable layer is deposited in the trench of the substrate. An optional first insulating layer is deposited in the trench. A conducting circuit is defined in the trench. The conducting circuit creates the magnetic flux. An optional second insulating layer is deposited in the trench. Writer gaps are patterned and then a second magnetic layer is added over the second insulating layer. The substrate is divided to form individual write heads.

REFERENCES:
patent: 5594608 (1997-01-01), Dee
patent: 5640753 (1997-06-01), Schultz et al.
patent: 5764447 (1998-06-01), Lazzari
patent: 5920762 (1999-07-01), Simmons et al.
patent: 5926350 (1999-07-01), Chiu et al.

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