Invention Grant
- Patent Title: Apparatus for cleaning magnetic disks and methods for manufacturing magnetic disks
- Patent Title (中): 用于清洁磁盘的设备和用于制造磁盘的方法
-
Application No.: US12568437Application Date: 2009-09-28
-
Publication No.: US08388414B2Publication Date: 2013-03-05
- Inventor: Naoto Endou , Mitsuhiro Shoda , Toshinori Ono , Hiroyuki Matsumoto , Fumihito Takahashi
- Applicant: Naoto Endou , Mitsuhiro Shoda , Toshinori Ono , Hiroyuki Matsumoto , Fumihito Takahashi
- Applicant Address: NL Amsterdam
- Assignee: HGST Netherlands B.V.
- Current Assignee: HGST Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Agency: Zilka-Kotab, PC
- Priority: JP2008-260296 20081007
- Main IPC: B08B1/02
- IPC: B08B1/02

Abstract:
A method, according to one embodiment, includes forming a lubricant film on a magnetic disk having at least a magnetic recording film above a substrate, and a protective film above the magnetic recording film, and wiping the lubricant film while rotating the substrate, e.g., at about 3.0 m/s to about 3.5 m/s by pressing a pad against a wiping cloth e.g., at a loading speed of about 12 mm/min to about 36 mm/min e.g., under a pressure of about 3 gf/mm2 to about 9 gf/mm2. The pad has a convexly curved surface in contact with the wiping cloth, and the wiping cloth is disposed so as to oppose the lubricant film. The method also includes pressing a cleaning tape which includes abrasive grains against the substrate on which the protective film and lubricant film are formed while rotating the substrate to remove protrusions. Apparatuses and forming the layers are also described.
Public/Granted literature
- US20100086676A1 Apparatus for Cleaning Magnetic Disks and Methods for Manufacturing Magnetic Disks Public/Granted day:2010-04-08
Information query
IPC分类: