CONTROLLING ELECTROSTATIC CHARGE ON MASKS FOR EXTREME ULTRAVIOLET LITHOGRAPHY

    公开(公告)号:US20250004387A1

    公开(公告)日:2025-01-02

    申请号:US18215485

    申请日:2023-06-28

    Inventor: Yongbae KIM

    Abstract: Devices and processes for managing electrostatic charge on lithographic photomasks for semiconductor fabrication are provided. Exemplary devices include sensors for measuring the electrostatic charge on a lithographic photomask and charge injectors for modifying the electrostatic charge on a lithographic photomask. Exemplary devices are capable of attaching to carriers for lithographic photomasks. Exemplary processes include measuring the electrostatic charge on a lithographic photomask, calculating the amount that the electrostatic charge should be increased or decreased, and modifying the amount of electrostatic charge.

    EUV MASK AND PELLICLE ASSEMBLY
    2.
    发明申请

    公开(公告)号:US20250102903A1

    公开(公告)日:2025-03-27

    申请号:US18373485

    申请日:2023-09-27

    Inventor: Yongbae KIM

    Abstract: Provided is a pellicle assembly that is sufficiently conductive in cooperation with a photomask that is mounted to the pellicle assembly to protect the pellicle and mask from electro static discharge.

Patent Agency Ranking