- 专利标题: Optimizing the utilization of metrology tools
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申请号: US16101057申请日: 2018-08-10
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公开(公告)号: US10725385B2公开(公告)日: 2020-07-28
- 发明人: Tsachy Holovinger , Liran Yerushalmi , David Tien , DongSub Choi
- 申请人: KLA-Tencor Corporation
- 申请人地址: US CA Milpitas
- 专利权人: KLA-Tencor Corporation
- 当前专利权人: KLA-Tencor Corporation
- 当前专利权人地址: US CA Milpitas
- 代理机构: Suiter Swantz pc llo
- 主分类号: H01L21/66
- IPC分类号: H01L21/66 ; G03F7/20 ; G03F9/00
摘要:
A method may include, but is not limited to, receiving a measurement including a metrology parameter for a layer of a metrology target and an alignment mark from an overlay metrology tool prior to a lithography process; deriving a merit figure from the metrology parameter and the alignment mark; deriving a correction factor from the merit figure; providing the correction factor to the lithography process via a feed forward process; receiving an additional measurement including an additional metrology parameter for the layer and an additional layer from an additional overlay metrology tool after the lithography process; deriving an adjustment from the additional metrology parameter; and providing the adjustment to the lithography process via a feedback process.
公开/授权文献
- US20180348649A1 OPTIMIZING THE UTILIZATION OF METROLOGY TOOLS 公开/授权日:2018-12-06
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