Invention Grant
- Patent Title: Fab management with dynamic sampling plans, optimized wafer measurement paths and optimized wafer transport, using quantum computing
-
Application No.: US16483599Application Date: 2019-07-05
-
Publication No.: US11615974B2Publication Date: 2023-03-28
- Inventor: Amnon Manassen , Tzahi Grunzweig , Einat Peled , Anna Golotsvan
- 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/US2019/040665 WO 20190705
- International Announcement: WO2021/006858 WO 20210114
- Main IPC: H01L21/67
- IPC: H01L21/67 ; G06N10/00 ; G05B19/401 ; G05B19/4063 ; G05B19/418

Abstract:
Systems and methods of optimizing wafer transport and metrology measurements in a fab are provided. Methods comprise deriving and updating dynamic sampling plans that provide wafer-specific measurement sites and conditions, deriving optimized wafer measurement paths for metrology measurements of the wafers that correspond to the dynamic sampling plan, managing FOUP (Front Opening Unified Pod) transport through the fab, transporting wafers to measurement tools while providing the dynamic sampling plans and the wafer measurement paths to the respective measurement tools before or as the FOUPs with the respective wafers are transported thereto, and carrying out metrology and/or inspection measurements of the respective wafers by the respective measurement tools according to the derived wafer measurement paths. Quantum computing resources may be used to solve the corresponding specific optimization problems, to reduce the required time, improve the calculated solutions and improve the fab yield and accuracy of the produced wafers.
Public/Granted literature
Information query
IPC分类: