发明授权
- 专利标题: Mixed polarization state monitoring
- 专利标题(中): 混合极化状态监测
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申请号: US12189340申请日: 2008-08-11
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公开(公告)号: US08031330B2公开(公告)日: 2011-10-04
- 发明人: Gregory R. McIntyre
- 申请人: Gregory R. McIntyre
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理机构: Hoffman Warnick LLC
- 代理商 Wenjie Li
- 主分类号: G03B27/32
- IPC分类号: G03B27/32 ; G03B27/42 ; G03B27/54 ; G03B27/72
摘要:
Mixed polarization state monitoring is presented. One method may include selecting a set of total dose values, and for each total dose value: exposing a location on a photoresist using illumination having an x-polarization value with an x-exposure dose ratio value of the total dose value, exposing the location on the photoresist using illumination having a y-polarization value with a y-exposure dose ratio value of the total dose value, and repeating the x-polarization value exposing and the y-polarization value exposing to achieve a range of mixed polarization states and a plurality of dose ratio values that range over extremes for the x-polarization exposure and the y-polarization exposure, each repeating occurring at a different location on the photoresist; and monitoring which mixed polarization states causes a change in an image printed at the different locations in the photoresist.
公开/授权文献
- US20100033703A1 MIXED POLARIZATION STATE MONITORING 公开/授权日:2010-02-11
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