Process of manufacturing a four-sided shield structure for a...

Details Process of manufacturing a four-sided shield structure for a... Process of manufacturing a four-sided shield structure for a...

2008-01-29

2008-01-29

Tugbang, A. Dexter (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S603110, C029S603130, C029S603140, C360S119050, C360S122000, C360S125020

Reexamination Certificate

active

07322095

ABSTRACT:
A process for reducing fringe field effects of a main write pole by shielding it on all four sides, with the regular return pole also serving as the leading edge shield, is described. The main pole may also be tapered and the leading edge and side shields may be magnetically connected to each other.

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Kanai et al., “Recording Field Analysis of Narrow-Track SPT Head with Side-Shields”, Digest of Technical Papers—Perpendicular Magnetic Recording Conference 2003, Joint NAPMRC 2003, Jan. 6, 2003, p. 62.
Hannay et al., “Investigation of Perpendicular Write Head with Side Shields Using a Hybrid Recording System Model”, IEEE International Magnetics Conference, 2003, INTERMAG 2003, Mar. 28, 2003, p. GR-5.
“One Terabit per Square Inch Perpendicular Recording Conceptual Design,” Mallary et al., IEEE Trans. on Magnetics, vol. 38, No. 4, Jul. 2002, pp. 1719-1724.

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