GAS CONTROL APPARATUS FOR GAS DISCHARGE STAGE

    公开(公告)号:US20240291226A1

    公开(公告)日:2024-08-29

    申请号:US18571826

    申请日:2022-06-02

    申请人: Cymer, LLC

    摘要: A gas control apparatus includes a control system in communication with a gas discharge chamber. The control system includes a performance monitoring module configured to, during standard mode of operation of the gas discharge chamber and in between performance of gas recovery schemes on the gas discharge chamber that use a gas recovery setting: compare one or more performance parameters of the gas discharge chamber to respective thresholds; determine whether the gas recovery setting needs to be adjusted based on the comparison; and adjust the value for the gas recovery setting based on the determination. The control system includes a gas recovery module configured to perform the gas recovery scheme, the gas recovery module being configured to access the most recently adjusted value for the gas recovery setting from the performance monitoring module when performing the current gas recovery scheme.

    Burst statistics data aggregation filter

    公开(公告)号:US12007696B2

    公开(公告)日:2024-06-11

    申请号:US17779290

    申请日:2020-11-18

    申请人: Cymer, LLC

    IPC分类号: G03F7/20 G03F7/00 H01S3/13

    摘要: A system includes a laser source configured to generate one or more bursts of laser pulses and a data collection and analysis system. The data collection and analysis system is configured to receive, from the laser source, data associated with the one or more bursts of laser pulses and determine, based on the received data, that the one or more bursts of laser pulses are for external use. The data collection and analysis system is further configured to determine, based on the received data, whether the one or more bursts of laser pulses are for an on-wafer operation or are for a calibration operation.

    Laser pulse sequence energy correction system and method

    公开(公告)号:US11978995B2

    公开(公告)日:2024-05-07

    申请号:US17467144

    申请日:2021-09-03

    发明人: Qing Zang Jian Zhou

    IPC分类号: H01S3/00 H01S3/13

    摘要: The present disclosure provides a laser pulse sequence energy correction system and method. The correction system includes a fundamental frequency light source, a control unit, an energy adjusting unit and a frequency multiplication crystal; the fundamental frequency light source is configured to output a fundamental frequency pulse laser, and the frequency multiplication crystal is configured to convert the fundamental frequency pulse laser into a multiple frequency pulse laser; the control unit prestores an energy-time curve of the multiple frequency pulse laser, and the control unit is configured to control the energy adjusting unit to adjust the intensity of the fundamental frequency pulse laser incident on the frequency multiplication crystal according to the energy-time curve, so that energy of each pulse in the multiple frequency pulse laser is identical. The technical solution of the present disclosure has advantages of simple structure, reliable device, convenient adjustment and the like.