Read/write head with reduced pole tip protrusion

Details Read/write head with reduced pole tip protrusion Read/write head with reduced pole tip protrusion

2007-04-03

2007-04-03

Miller, Brian E. (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Core

C360S123090

Reexamination Certificate

active

10771054

ABSTRACT:
A write element for use in a read/write head having an air bearing surface, so as to reduce pole tip protrusion. The write element includes a pole tip region; an insulation layer formed adjacent to the pole tip region; a coil embedded in the insulation layer which contributes to a protrusion force that generates a pole tip protrusion; and a layer of thermally expansive material formed over the insulation layer, and recessed from the air bearing surface, that expands in response to heat absorption, causing a rotational moment of force that counteracts the protrusion force thus reducing the pole tip protrusion.

REFERENCES:
patent: 5687045 (1997-11-01), Okai et al.
patent: 5930086 (1999-07-01), Chaug et al.
patent: 6381094 (2002-04-01), Gill
patent: 6396660 (2002-05-01), Jensen et al.
patent: 6661621 (2003-12-01), Iitsuka
patent: 6754050 (2004-06-01), Kong et al.
patent: 6760191 (2004-07-01), Yan et al.
patent: 6842308 (2005-01-01), Pust et al.
patent: 6859343 (2005-02-01), Alfoqaha et al.
patent: 6876526 (2005-04-01), Macken et al.
patent: 6894871 (2005-05-01), Alfoqaha et al.
patent: 6909578 (2005-06-01), Missell et al.
patent: 6914750 (2005-07-01), Garfunkel et al.
patent: 6989963 (2006-01-01), Kautzky et al.
patent: 7035046 (2006-04-01), Young et al.
patent: 7079353 (2006-07-01), Hsiao et al.
patent: 7092208 (2006-08-01), Zou et al.
patent: 7102853 (2006-09-01), Macken et al.
patent: 2001/0043446 (2001-11-01), Barlow et al.
patent: 2002/0067571 (2002-06-01), Yoshida et al.
patent: 2003/0048579 (2003-03-01), Kikuchi et al.
patent: 2004/0027717 (2004-02-01), Alfoqaha et al.
patent: 2004/0075944 (2004-04-01), Macken et al.
patent: 2004/0252396 (2004-12-01), Pleiss
patent: 2005/0225897 (2005-10-01), Liu et al.
patent: 2006/0102956 (2006-05-01), Kamarajugadda et al.

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