Method for manufacturing perpendicular magnetic recording head

Details Method for manufacturing perpendicular magnetic recording head Method for manufacturing perpendicular magnetic recording head

2007-02-27

2007-02-27

Tugbang, A. Dexter (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S603150, C029S603160, C029S603180, C216S022000, C216S039000, C360S122000

Reexamination Certificate

active

10913200

ABSTRACT:
In a method for manufacturing a perpendicular magnetic recording head, a groove defined by the inner side surfaces of a first nonmagnetic layer and the top surface of a main magnetic pole layer is formed using the difference in etching rates for dry etching between the main magnetic pole layer and the first nonmagnetic layer. An auxiliary magnetic pole layer is formed on the groove with a nonmagnetic material layer disposed therebetween. A projection integrated with the auxiliary magnetic pole layer is formed in a recess of the nonmagnetic material layer on the groove. This projection extends toward the main magnetic pole layer.

REFERENCES:
patent: 6760966 (2004-07-01), Wang et al.
patent: 59-177376 (1984-10-01), None
patent: 09-16907 (1997-01-01), None
patent: 2001-526440 (2001-12-01), None
patent: 2002-92820 (2002-03-01), None
patent: 2002-092820 (2002-03-01), None
patent: 2002-157706 (2002-05-01), None
patent: 2003-006813 (2003-01-01), None
patent: 99/28903 (1999-06-01), None
Yoda et al., “Self-Alignment Trench Pole Writer”, IEEE Transactions on Magnetics, vol. 35, No. 5, Sep. 1999, pp. 2535-2537.
Notification of Refusal dated Nov. 28, 2006 for corresponding Japanese Patent Application No. 2003-296977.

Affiliated with

Also associated with

Rating

Method for manufacturing perpendicular magnetic recording head does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for manufacturing perpendicular magnetic recording head, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for manufacturing perpendicular magnetic recording head will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3881862