发明申请
- 专利标题: Adhesion layer for thin film magnetic recording medium
- 专利标题(中): 薄膜磁记录介质粘合层
-
申请号: US12653216申请日: 2009-12-09
-
公开(公告)号: US20100091402A1公开(公告)日: 2010-04-15
- 发明人: Hong Deng , Yoshihiro Ikeda , Mary Frances Minardi , Kentaro Takano , Kai Tang
- 申请人: Hong Deng , Yoshihiro Ikeda , Mary Frances Minardi , Kentaro Takano , Kai Tang
- 主分类号: G11B5/127
- IPC分类号: G11B5/127 ; G11B5/66
摘要:
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, Al47.5Ti47.5Zr5 or 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.
公开/授权文献
- US07964297B2 Adhesion layer for thin film magnetic recording medium 公开/授权日:2011-06-21
信息查询
IPC分类: