发明授权
- 专利标题: Pattern forming method, charged particle beam writing apparatus, and recording medium on which program is recorded
- 专利标题(中): 图案形成方法,带电粒子束写入装置和记录有程序的记录介质
-
申请号: US12023384申请日: 2008-01-31
-
公开(公告)号: US08133402B2公开(公告)日: 2012-03-13
- 发明人: Takayuki Ohnishi , Hirohito Anze
- 申请人: Takayuki Ohnishi , Hirohito Anze
- 申请人地址: JP Numazu-shi
- 专利权人: NuFlare Technology, Inc.
- 当前专利权人: NuFlare Technology, Inc.
- 当前专利权人地址: JP Numazu-shi
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权: JP2007-022702 20070201
- 主分类号: C03C15/00
- IPC分类号: C03C15/00
摘要:
A pattern forming method includes performing a first resist development during a first time period to a substrate obtained by coating a resist film having a predetermined thickness onto a predetermined film to be etched, measuring the film thickness of the resist film after the first resist development, writing a predetermined pattern corrected in dimension on the basis of an amount of reduction in thickness of the resist film on the resist film by using a charged particle beam, performing a second resist development during a second time period which is longer than the first time period to the substrate after writing the pattern, and etching the predetermined film to be etched by using the resist film after the second resist development as a mask.
公开/授权文献
信息查询