发明授权
US6122562A Method and apparatus for selectively marking a semiconductor wafer
失效
用于选择性地标记半导体晶片的方法和装置
- 专利标题: Method and apparatus for selectively marking a semiconductor wafer
- 专利标题(中): 用于选择性地标记半导体晶片的方法和装置
-
申请号: US850954申请日: 1997-05-05
-
公开(公告)号: US6122562A公开(公告)日: 2000-09-19
- 发明人: Patrick D. Kinney , Yuri Uritsky , Nagaraja Rao
- 申请人: Patrick D. Kinney , Yuri Uritsky , Nagaraja Rao
- 申请人地址: CA Santa Clara
- 专利权人: Applied Materials, Inc.
- 当前专利权人: Applied Materials, Inc.
- 当前专利权人地址: CA Santa Clara
- 主分类号: H01L21/66
- IPC分类号: H01L21/66 ; G01Q30/02 ; G01Q30/04 ; G01Q60/00 ; G01Q80/00 ; G01Q90/00 ; H01L21/00 ; H01L21/02 ; G06F19/00
摘要:
A method and apparatus that accurately marks a wafer at selected locations such as a defect location on the surface of a wafer such that a wafer analysis system (e.g., SEM or AFM) may rapidly find the defect. The apparatus contains a wafer platen for retaining a wafer in a substantially horizontal orientation and a marking assembly mounted above the wafer platen. The marking assembly further contains an optical microscope and a marking head. In operation, a user locates a defect using the optical microscope and places a pattern of fiducial marks at a predetermined distance from the defect, e.g., four marks in a diamond pattern circumscribing the defect.
公开/授权文献
- US5163750A Light apparatus 公开/授权日:1992-11-17