Adhesion layer for thin film magnetic recording medium

Details Adhesion layer for thin film magnetic recording medium Adhesion layer for thin film magnetic recording medium

2011-06-21

2011-06-21

Bernatz, Kevin M. (Department: 1785)

Stock material or miscellaneous articles

Magnetic recording component or stock

Thin film media

C428S846200, C428S846400, C360S135000

Reexamination Certificate

active

07964297

ABSTRACT:
The invention uses an adhesion layer of an amorphous alloy of aluminum. A first aluminum titanium embodiment of the amorphous adhesion layer preferably contains approximately equal amounts of aluminum and titanium (+/−5 at. %). A second embodiment of the amorphous adhesion layer preferably contains approximately equal amounts of aluminum and titanium (+/−5 at. %) and up to 10 at. % Zr with 5 at. % Zr being preferred. A third embodiment is aluminum tantalum preferably including from 15 to 25 at. % tantalum with 20 at. % being preferred. The most preferred compositions are Al50Ti50, Al47.5Ti47.5Zr5or Al80Ta20. The adhesion layer is deposited onto the substrate. The substrate can be glass or a metal such as NiP-plated AlMg. The preferred embodiment of media according to the invention is for perpendicular recording and includes a magnetically soft underlayer deposited above the adhesion layer.

REFERENCES:
patent: 4454014 (1984-06-01), Bischoff
patent: 4632883 (1986-12-01), Howard et al.
patent: 5589262 (1996-12-01), Kiuchi et al.
patent: 5626943 (1997-05-01), Tenhover
patent: 5626943 (1997-05-01), Tenhover
patent: 5815343 (1998-09-01), Ishikawa et al.
patent: 6428906 (2002-08-01), Wong et al.
patent: 6562489 (2003-05-01), Abarra et al.
patent: 6828047 (2004-12-01), Abarra et al.
patent: 6863993 (2005-03-01), Doerner et al.
patent: 6872478 (2005-03-01), Bian et al.
patent: 7374831 (2008-05-01), Araki et al.
patent: 7498092 (2009-03-01), Berger et al.
patent: 7651794 (2010-01-01), Deng et al.
patent: 7875371 (2011-01-01), Arai et al.
patent: 2001/0008716 (2001-07-01), Matsuda et al.
patent: 2001/0024742 (2001-09-01), Bian et al.
patent: 2001/0033949 (2001-10-01), Abarra et al.
patent: 2002/0018920 (2002-02-01), Yamamoto et al.
patent: 2002/0028357 (2002-03-01), Shukh et al.
patent: 2002/0061424 (2002-05-01), Nanis
patent: 2002/0122958 (2002-09-01), Tanahashi et al.
patent: 2002/0122959 (2002-09-01), Matsunuma
patent: 2003/0022023 (2003-01-01), Carey et al.
patent: 2003/0034781 (2003-02-01), Abdel-Rahman
patent: 2003/0091798 (2003-05-01), Zheng et al.
patent: 2003/0104247 (2003-06-01), Girt
patent: 2003/0134151 (2003-07-01), Usuki et al.
patent: 2003/0219633 (2003-11-01), Sulin et al.
patent: 2004/0009375 (2004-01-01), Tanahashi et al.
patent: 2004/0106010 (2004-06-01), Iwasaki et al.
patent: 2004/0146686 (2004-07-01), Kim et al.
patent: 2004/0214049 (2004-10-01), Yamamoto et al.
patent: 2005/0008902 (2005-01-01), Bertero et al.
patent: 2005/0030676 (2005-02-01), Fukuzawa et al.
patent: 2005/0040210 (2005-02-01), Sandin
patent: 2005/0244679 (2005-11-01), Arai et al.
patent: 59172162 (1984-09-01), None
patent: 60239916 (1985-11-01), None
patent: 61248219 (1986-11-01), None
patent: 63193324 (1988-08-01), None
patent: 63317922 (1988-12-01), None
patent: 3017825 (1991-01-01), None

Affiliated with

Also associated with

Rating

Adhesion layer for thin film magnetic recording medium does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adhesion layer for thin film magnetic recording medium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adhesion layer for thin film magnetic recording medium will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2677409