发明授权
- 专利标题: Optical disc and apparatus for manufacturing a master disc therefor
- 专利标题(中): 用于制造母盘的光盘和设备
-
申请号: US09984251申请日: 2001-10-29
-
公开(公告)号: US06882615B2公开(公告)日: 2005-04-19
- 发明人: Masahiro Katsumura
- 申请人: Masahiro Katsumura
- 申请人地址: JP Tokyo
- 专利权人: Pioneer Corporation
- 当前专利权人: Pioneer Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Morgan, Lewis & Bockius LLP
- 优先权: JP2000-334119 20001101
- 主分类号: G11B7/24
- IPC分类号: G11B7/24 ; G11B7/007 ; G11B7/26 ; H01J37/09 ; B32B3/02
摘要:
A master-disc-manufacturing apparatus includes an electron-beam emitting portion for emitting an electron beam, an electron-beam converging portion for converging an electron beam, a retarding voltage applying portion for applying a substrate with a negative potential having a magnitude of decelerating the electron beam, and a vacuum atmosphere producing portion for evacuating a chamber to produce a vacuum atmosphere therein.
公开/授权文献
信息查询
IPC分类: