PLASMA ETCHING APPARATUS AND OPERATING METHOD THEREOF

    公开(公告)号:US20240128056A1

    公开(公告)日:2024-04-18

    申请号:US18133277

    申请日:2023-04-11

    Abstract: The present disclosure provides plasma etching apparatuses and operating methods of the plasma etching apparatuses. In some embodiments, a plasma etching apparatus includes a processing chamber, a plasma source generator, a bias generator, and an acoustic wave generator. The processing chamber is configured to receive etching gas, and to etch a wafer using plasma that has been formed according to a plasma source pulse and a bias pulse. The a plasma source generator is configured to generate the plasma source pulse. The bias generator is configured to generate the bias pulse. The acoustic wave generator is configured to generate an acoustic wave having a wavefront with a first direction parallel to the wafer and to control a density of a reactive gas of the plasma.

    PLASMA GENERATION CIRCUIT AND SUBSTRATE PROCESSING DEVICE INCLUDING THE SAME

    公开(公告)号:US20250149293A1

    公开(公告)日:2025-05-08

    申请号:US18747933

    申请日:2024-06-19

    Abstract: A plasma generation circuit includes a high frequency power source configured to generate a first high frequency current; a current divider comprising a first capacitor and a variable capacitor and configured to divide the first high frequency current into a second high frequency current and a third high frequency current; an antenna assembly comprising a center antenna connected to the current divider and through which the second high frequency current is configured to flow, and an edge antenna connected in to the current divider and through which the third high frequency current is configured to flow, the antenna assembly being configured to induce generation of an inductively coupled plasma; a first coil coupled inductor configured to allow the second high frequency current to flow therethrough; and a second coil coupled inductor configured to allow the third high frequency current to flow therethrough and adjacent to the first coil coupled inductor.

    GAS SUPPLY ASSEMBLY AND SEMICONDUCTOR WAFER PROCESSING APPARATUS USING THE SAME

    公开(公告)号:US20250132134A1

    公开(公告)日:2025-04-24

    申请号:US18781389

    申请日:2024-07-23

    Abstract: A gas supply assembly includes: a heat control plate including a heater and a cooler; a gas distribution plate below the heat control plate and including a process gas distribution passage with process gas delivered therethrough and a heat regulating gas distribution passage with heat regulating gas delivered therethrough; a heat transfer pad below the gas distribution plate and including a dielectric material pad including an electrode therein; and a showerhead including a spraying nozzle in communication with the process gas distribution passage and discharging the process gas. The heat transfer pad further includes a process gas movement channel in communication with the process gas distribution passage of the gas distribution plate and a heat regulating gas movement channel in communication with the heat regulating gas distribution passage of the gas distribution plate.

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