Invention Grant
- Patent Title: Multiple-tool parameter set configuration and misregistration measurement system and method
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Application No.: US16496914Application Date: 2019-08-23
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Publication No.: US11018064B2Publication Date: 2021-05-25
- Inventor: Roie Volkovich , Eitan Herzel
- Applicant: KLA CORPORATION
- Applicant Address: US CA Milpitas
- Assignee: KLA CORPORATION
- Current Assignee: KLA CORPORATION
- Current Assignee Address: US CA Milpitas
- Agency: Hodgson Russ LLP
- International Application: PCT/US2019/047795 WO 20190823
- International Announcement: WO2020/122996 WO 20200618
- Main IPC: H01L21/66
- IPC: H01L21/66 ; H01L21/67 ; G03F7/20

Abstract:
A multiple-tool parameter set configuration and misregistration measurement system and method useful in the manufacture of semiconductor devices including using a first misregistration metrology tool using a first set of measurement parameters to measure misregistration between at least two layers at multiple sites on a wafer, including a plurality of semiconductor devices, the wafer being selected from a batch of wafers including a plurality of semiconductor devices intended to be identical to corresponding semiconductor devices on all other wafers in the batch of wafers, thereby generating a plurality of first misregistration data sets, using a second misregistration metrology tool using a second set of measurement parameters to measure misregistration between the at least two layers at multiple sites on a wafer selected from the batch of wafers, thereby generating a plurality of second misregistration data sets, selecting an adjusted first set of modeled measurement parameters associated with the first misregistration data sets and an adjusted second set of modeled measurement parameters associated with the second misregistration data sets, thereby generating a matched misregistration data set and thereafter measuring misregistration between at least two layers of at least one additional wafer, selected from the batch of wafers, using at least one of the first misregistration metrology tool using the adjusted first set of modeled measurement parameters and the second misregistration metrology tool using the adjusted second set of modeled measurement parameters.
Public/Granted literature
- US20210028070A1 MULTIPLE-TOOL PARAMETER SET CONFIGURATION AND MISREGISTRATION MEASUREMENT SYSTEM AND METHOD Public/Granted day:2021-01-28
Information query
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