Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2004-09-30
2008-03-18
Kim, Paul D. (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S603130, C029S603150, C029S065000, C216S062000, C216S067000, C216S068000, C360S122000, C360S125330, C360S317000, C360S234500, C360S234700
Reexamination Certificate
active
07343667
ABSTRACT:
A side-by-side read/write head includes a self-aligned trailing shield, where a rear edge of the trailing shield is defined by the same lithography/etching process used to define a rear edge of a read sensor. A plurality of read sensor layers and a pole tip structure adjacent the read sensor layers are formed over a wafer. A non-magnetic layer is deposited over the pole tip structure. A patterned resist is then formed over both the read sensor layers and the non-magnetic layer. With the patterned resist in place, read sensor materials of the read sensor layers are etched away so as to define the rear edge of the read sensor. Non-magnetic materials of the non-magnetic layer are simultaneously etched away so as to form an etched region which defines the rear edge for the trailing shield.
REFERENCES:
patent: 4636897 (1987-01-01), Nakamura et al.
patent: 4740855 (1988-04-01), Diepers et al.
patent: 5229901 (1993-07-01), Mallary
patent: 5285341 (1994-02-01), Suzuki et al.
patent: 5896249 (1999-04-01), Fontana et al.
patent: 6392840 (2002-05-01), Chen
patent: 6636390 (2003-10-01), Funayama et al.
patent: 6985330 (2006-01-01), Santini
patent: 2003/0112555 (2003-06-01), Sato et al.
patent: 2003/0156355 (2003-08-01), Yoda et al.
patent: 2004/0223260 (2004-11-01), Santini
patent: 0 821 348 (1998-01-01), None
patent: 60163221 (1985-08-01), None
patent: 62262213 (1987-11-01), None
patent: 6119619 (1994-04-01), None
“Self-Aligned Write Throat/Read Stripe for Side-by-Side Head”, IBM Technical Disclosure Bulletin, Aug. 1997, pp. 5-6, vol. 40, Issue-8, web site.
“Thin Film Magnetic Head Assembly”, IBM Technical Disclosure Bulletin, Sep. 1981, pp. 1912-1913, web site.
“Thin Film Head Assembly With Side by Side Elements”, IBM Technical Disclosure Bulletin, Sep. 1981, pp. 1910-1911, web site.
“Design of Separately Optimized Thin Film Read Write Magnetic Recording Heads”, IBM Technical Disclosure Bulletin, Oct. 1980, pp. 2148-2149, web site.
Hitachi Global Storage Technologies - Netherlands B.V.
Kim Paul D.
Oskorep, Esq. John J.
Rambod Nadar
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