公开(公告)号：US06432562B1

公开(公告)日：2002-08-13

申请号：US09393328

申请日：1999-09-10

申请人： Stella Z. Wu ,  Qixu Chen ,  Samuel D. Harkness, IV ,  Rajiv Y. Ranjan

发明人： Stella Z. Wu ,  Qixu Chen ,  Samuel D. Harkness, IV ,  Rajiv Y. Ranjan

IPC分类号： G11B566

CPC分类号： G11B5/732 ,  G11B5/7325 ,  G11B5/8404 ,  Y10S428/90 ,  Y10T428/265

摘要： High areal density magnetic recording media exhibiting high magnetic performance, e.g., narrow PW50, and high OW, and high SNR, are formed with a NiAlRu seedlayer. Embodiments of the present invention include sputter depositing a NiAlRu seedlayer on a non-magnetic substrate and sequentially depositing thereon a Cr or Cr alloy underlayer, e.g., CrMo, CrMn, CrV or CrW, a magnetic layer, e.g., a Co—Cr-containing magnetic alloy layer, and a protective overcoat, e.g., a carbon-containing protective overcoat.

摘要翻译： 使用NiAlRu种子层形成表现出高磁性能的高密度磁记录介质，例如窄PW50，高OW，高SNR。 本发明的实施例包括在非磁性衬底上溅射沉积NiAlRu种子层并且在其上依次沉积Cr或Cr合金底层，例如CrMo，CrMn，CrV或CrW，磁性层，例如含Co-Cr 磁性合金层和保护性外涂层，例如含碳保护性外涂层。