Exchange-coupled film, method for making exchange-coupled...

Details Exchange-coupled film, method for making exchange-coupled... Exchange-coupled film, method for making exchange-coupled...

2008-04-29

2008-04-29

Wellington, Andrea (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

C360S324000, C360S324110, C360S324120, C029S603010, C029S603070

Reexamination Certificate

active

07365948

ABSTRACT:
An exchange-coupled film includes a seed layer, an antiferromagnetic layer, and a ferromagnetic layer. The seed layer is formed at a thickness that is larger than the critical thickness, and the thickness of the seed layer is then decreased by etching so as to be smaller than or equal to the critical thickness. Thereby, a crystalline phase which extends through the seed layer from the upper surface to the lower surface can be formed, and/or the average size, in a direction parallel to the layer surface, of the crystal grains in the seed layer can be set to be larger than the thickness of the seed layer. Consequently, a large exchange coupling magnetic field Hex can be generated between the antiferromagnetic layer and the ferromagnetic layer.

REFERENCES:
patent: 6141191 (2000-10-01), Lee et al.
patent: 6219210 (2001-04-01), Pinarbasi
patent: 6222707 (2001-04-01), Huai et al.
patent: 6266210 (2001-07-01), Shiroishi
patent: 6278592 (2001-08-01), Xue et al.
patent: 6338899 (2002-01-01), Fukuzawa et al.
patent: 6490140 (2002-12-01), Mao et al.
patent: 6498707 (2002-12-01), Gao et al.
patent: 6501626 (2002-12-01), Gill
patent: 6728079 (2004-04-01), Shimazawa
patent: 6806804 (2004-10-01), Saito et al.
patent: 6969895 (2005-11-01), Han et al.
patent: 7008702 (2006-03-01), Fukuzawa et al.
patent: 7067863 (2006-06-01), Guo
patent: 7145755 (2006-12-01), Freitag et al.
patent: 7173796 (2007-02-01), Freitag et al.
patent: 2001/0053053 (2001-12-01), Saito et al.
patent: 2002/0008947 (2002-01-01), Hasegawa et al.
patent: 2002/0021537 (2002-02-01), Hasegawa et al.
patent: 2002/0048126 (2002-04-01), Shimazawa
patent: 2002/0048690 (2002-04-01), Fukuzawa et al.
patent: 2002/0159205 (2002-10-01), Kula et al.
patent: 2002/0191356 (2002-12-01), Hasegawa et al.
patent: 2003/0002228 (2003-01-01), Suwabe et al.
patent: 2003/0030434 (2003-02-01), Hasegawa et al.
patent: 2003/0111335 (2003-06-01), Saito et al.
patent: 2003/0174446 (2003-09-01), Hasegawa
patent: 2003/0231436 (2003-12-01), Nishiyama
patent: 2004/0121185 (2004-06-01), Fukuzawa et al.
patent: 2004/0228044 (2004-11-01), Hasegawa et al.
patent: 2005/0045971 (2005-03-01), Guo
patent: 2005/0068686 (2005-03-01), Freitag et al.
patent: 2005/0068692 (2005-03-01), Freitag et al.
patent: 2005/0153169 (2005-07-01), Watanabe et al.
patent: 2005/0248980 (2005-11-01), Han et al.
patent: 2007/0015293 (2007-01-01), Wang et al.
patent: 2003-31871 (2001-01-01), None
patent: 2001-297913 (2001-10-01), None
patent: 2001-297914 (2001-10-01), None
patent: 2002-280641 (2002-09-01), None
patent: 2003-016613 (2003-01-01), None
patent: 2003-31870 (2003-01-01), None
patent: 2003-101102 (2003-04-01), None
patent: 02-542617 (2002-12-01), None

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