发明授权
- 专利标题: Wafer metrology apparatus and method
- 专利标题(中): 晶圆计量仪器及方法
-
申请号: US10397917申请日: 2003-03-26
-
公开(公告)号: US06919958B2公开(公告)日: 2005-07-19
- 发明人: Fred E. Stanke , Clinton B. Carlisle , Hung Van Pham , Edric Tong , Douglas E. Ruth , James M. Cahill, Jr. , Michael Weber-Grabau , Elliot Burke , Adam E. Norton
- 申请人: Fred E. Stanke , Clinton B. Carlisle , Hung Van Pham , Edric Tong , Douglas E. Ruth , James M. Cahill, Jr. , Michael Weber-Grabau , Elliot Burke , Adam E. Norton
- 申请人地址: US CA Fremont
- 专利权人: Therma-Wave, Inc.
- 当前专利权人: Therma-Wave, Inc.
- 当前专利权人地址: US CA Fremont
- 代理机构: Stallman & Pollock LLP
- 主分类号: B24B49/12
- IPC分类号: B24B49/12 ; G01B11/06 ; G01B11/30 ; G01N21/21 ; G01N21/95 ; H01L21/66 ; H01L21/67 ; G01N21/88
摘要:
This invention is an apparatus for imaging metrology, which in particular embodiments may be integrated with a processor station such that a metrology station is apart from but coupled to a process station. The metrology station is provided with a first imaging camera with a first field of view containing the measurement region. Alternate embodiments include a second imaging camera with a second field of view. Preferred embodiments comprise a broadband ultraviolet light source, although other embodiments may have a visible or near infrared light source of broad or narrow optical bandwidth. Embodiments including a broad bandwidth source typically include a spectrograph, or an imaging spectrograph. Particular embodiments may include curved, reflective optics or a measurement region wetted by a liquid. In a typical embodiment, the metrology station and the measurement region are configured to have 4 degrees of freedom of movement relative to each other.
公开/授权文献
- US20030184742A1 Wafer metrology apparatus and method 公开/授权日:2003-10-02
信息查询