发明授权
- 专利标题： Seeded underlayer in magnetic thin films
- 专利标题（中）： 在磁性薄膜中播种底层
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申请号： US899295申请日： 1997-07-23
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公开(公告)号： US06077603A公开(公告)日： 2000-06-20
- 发明人: Bing Zhang
- 申请人： Bing Zhang
- 申请人地址： CA Scotts Valley
- 专利权人： Seagate Technology, Inc.
- 当前专利权人： Seagate Technology, Inc.
- 当前专利权人地址： CA Scotts Valley
- 主分类号： G11B5/73
- IPC分类号： G11B5/73 ; G11B5/66
摘要：
A seed layer is deposited under an underlayer in magnetic thin film media. The seed layer material has a similar lattice parameter and a similar crystal structure to the underlayer material. The preferred structure involves a nickel-aluminum seed layer, under a chromium underlayer, under a cobalt-based magnetic layer. Use of the nickel-aluminum seed layer produces higher coercivity and lower media noise in the resultant magnetic thin film. The coercivity and media noise values for the resultant magnetic thin film are dependent upon deposition parameters, and recommended deposition parameters are given.
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