公开(公告)号：US5846648A

公开(公告)日：1998-12-08

申请号：US802646

申请日：1997-02-18

申请人： Tu Chen ,  Michinobu Suekane ,  Makoto Imakawa ,  Kazuhiko Mitarai

发明人： Tu Chen ,  Michinobu Suekane ,  Makoto Imakawa ,  Kazuhiko Mitarai

IPC分类号： C23C14/06 ,  C23C14/50 ,  C23C14/56 ,  G11B5/64 ,  G11B5/73 ,  G11B5/851 ,  H01F10/00 ,  H01F41/18 ,  H01F41/30 ,  G11B5/66

CPC分类号： B82Y25/00 ,  B82Y40/00 ,  C23C14/06 ,  C23C14/50 ,  C23C14/568 ,  G11B5/656 ,  G11B5/732 ,  G11B5/7325 ,  G11B5/851 ,  H01F10/007 ,  H01F10/265 ,  H01F41/18 ,  H01F41/301 ,  Y10S428/90 ,  Y10T428/12736 ,  Y10T428/12819 ,  Y10T428/12847 ,  Y10T428/12861 ,  Y10T428/12931 ,  Y10T428/26 ,  Y10T428/265

摘要： A magnetic recording medium is provided with a structured nucleation layer. The structured nucleation layer comprises a fine-grained seed layer and an intermediate layer. The seed layer (e.g., NiAl, Ti, Cr--Cu, etc.) serves as a template for fine grained-growth of the intermediate layer. The intermediate (e.g., Cr, etc.) layer has preferred crystal textures and an appropriate lattice match to a subsequently deposited magnetic recording layer to allow epitaxial growth of the magnetic recording layer. The intermediate layer provides morphology and orientation to the magnetic recording layer. The magnetic recording layer (e.g., Co-alloy) includes a material which segregates to the alloy grain boundaries to isolate the grains thereof. Each grain of the magnetic recording layer is predominantly a single crystal of small size and uniformly spaced from adjacent grains. The easy axis of the magnetic recording material is predominantly in the plane of the disk, with a random in-plane orientation. Superior magnetic properties are obtained.

摘要翻译： 磁记录介质具有结构化成核层。 结构化成核层包括细粒种子层和中间层。 种子层（例如，NiAl，Ti，Cr-Cu等）用作中间层的细粒生长的模板。 中间体（例如，Cr等）层具有优选的晶体结构，并且与随后沉积的磁记录层具有适当的晶格匹配，以允许磁记录层的外延生长。 中间层为磁记录层提供形态和取向。 磁记录层（例如Co合金）包括分离到合金晶界以分离其晶粒的材料。 磁记录层的每个颗粒主要是小尺寸的单晶并且与相邻晶粒均匀间隔开。 磁记录材料的容易轴主要位于盘的平面中，具有随机的面内取向。 获得了优异的磁性能。

公开(公告)号：US06309765B1

公开(公告)日：2001-10-30

申请号：US09262006

申请日：1999-03-04

申请人： Michinobu Suekane ,  Makoto Imakawa ,  Takehiko Hiruma ,  Kazuhiko Mitarai

发明人： Michinobu Suekane ,  Makoto Imakawa ,  Takehiko Hiruma ,  Kazuhiko Mitarai

IPC分类号： G11B566

CPC分类号： G11B5/66 ,  Y10S428/90

摘要： A magnetic recording medium comprising a non-ferromagnetic substrate and a magnetic recording layer formed on the substrate with an underlayer of Cr or a Cr alloy interposed therebetween, which has a seed layer between the substrate and the underlayer, wherein said seed layer is made of a material which contains at least 30 ppm of oxygen and which has a B2 crystal structure.

摘要翻译： 一种磁记录介质，包括非铁磁性基板和磁记录层，所述磁记录层在基板上形成有Cr或Cr合金基底，其间具有在基板和底层之间的种子层，其中所述种子层由 含有至少30ppm氧并具有B2晶体结构的材料。

公开(公告)号：US06635155B2

公开(公告)日：2003-10-21

申请号：US09982257

申请日：2001-10-19

申请人： Masao Miyamura ,  Kazuhiko Mitarai ,  Satoru Takaki

发明人： Masao Miyamura ,  Kazuhiko Mitarai ,  Satoru Takaki

IPC分类号： C23C1435

CPC分类号： C23C14/0052 ,  C23C14/083 ,  C23C14/10

摘要： A method for forming an optical thin film having multiple optical layers on the surface of a substrate using a magnetron sputtering apparatus with a sputtering chamber having cathodes, the substrate, and at least two kinds of targets disposed therein. An inert gas and a reactive gas are introduced into the sputtering chamber to form at least some of the multiple optical layers on the substrate by successively alternately repeatedly forming at least two kinds of optical layers each having a different optical constant by means of the reactive magnetron sputtering apparatus under a condition of a discharge pressure being no greater than 1.3×10−1 Pa.

摘要翻译： 一种使用具有溅射室的磁控溅射装置在基板的表面上形成具有多个光学层的光学薄膜的方法，所述溅射室具有阴极，所述基板和设置在其中的至少两种靶。 将惰性气体和反应性气体引入到溅射室中，以通过依次交替重复地形成至少两种通过反应磁控管具有不同光学常数的光学层来形成多个光学层中的至少一些 溅射装置在放电压力不大于1.3×10 Pa的条件下。