SURFACE FLUORINATION REMEDIATION FOR ALUMINIUM OXIDE ELECTROSTATIC CHUCKS

    公开(公告)号:WO2021257267A1

    公开(公告)日:2021-12-23

    申请号:PCT/US2021/034870

    申请日:2021-05-28

    Abstract: Embodiments are disclosed for reducing substrate breaks which result from inadequate de-chucking. Contaminants are removed from the surface of a chuck by exposing the chuck to a plasma process that comprises a hydrogen (H)-containing plasma. The chuck is subjected to the hydrogen-based plasma when no substrate is on the chuck. In one embodiment, the plasma is a hydrocarbon-based plasma. Hydrogen in the hydrocarbon plasma may react with and remove the contaminants. The process may further include an additional plasma step for removal of any newly formed materials that may result from the hydrocarbon plasma. The removal step may be, for example, a subsequent plasma ash step. In one embodiment, the chuck is an electrostatic chuck and the contaminants comprise fluorine. By removing contaminants from the chuck surface, improved substrate de-chucking occurs. This improvement correspondingly leads to less substrate breakage when removing substrates from the chuck.

    AUTOMATIC ELECTROSTATIC CHUCK BIAS COMPENSATION DURING PLASMA PROCESSING

    公开(公告)号:WO2022240651A1

    公开(公告)日:2022-11-17

    申请号:PCT/US2022/027892

    申请日:2022-05-05

    Abstract: Embodiments of the present disclosure relate to a system for pulsed direct- current (DC) biasing and clamping a substrate. In one embodiment, the system includes a plasma chamber having an electrostatic chuck (ESC) for supporting a substrate. An electrode is embedded in the ESC and is electrically coupled to a biasing and clamping network. The biasing and clamping network includes at least a shaped DC pulse voltage source and a clamping network. The clamping network includes a DC source and a diode, and a resistor. The shaped DC pulse voltage source and the clamping network are connected in parallel. The biasing and clamping network automatically maintains a substantially constant clamping voltage, which is a voltage drop across the electrode and the substrate when the substrate is biased with pulsed DC voltage, leading to improved clamping of the substrate.

    MONOBLOC PEDESTAL FOR EFFICIENT HEAT TRANSFER

    公开(公告)号:WO2021247627A1

    公开(公告)日:2021-12-09

    申请号:PCT/US2021/035329

    申请日:2021-06-02

    Abstract: A substrate support for a substrate processing system includes a monobloc pedestal plate with a first surface configured to support a substrate and a second surface configured to interface with a pedestal stem. A groove is formed in the second surface of the monobloc pedestal plate. The groove has a serpentine shape and a depth of the groove extends upward from the second surface of the monobloc pedestal plate. A heater coil is arranged within the groove. A gap is defined between the heater coil and the second surface of the monobloc pedestal plate and a gap material is arranged within the gap to seal the heater coil within the groove.

    HALTEVORRICHTUNG UND VERWENDUNG DER HALTEVORRICHTUNG

    公开(公告)号:WO2021228323A1

    公开(公告)日:2021-11-18

    申请号:PCT/DE2021/100418

    申请日:2021-05-07

    Inventor: SCHAPER, Martin

    Abstract: Die Erfindung betrifft eine Haltevorrichtung zum Halten mehrerer Substrate (4) bei einer plasmaunterstützten Abscheidung einer Schicht aus der Gasphase auf den Substraten (4) aufweisend: parallel zueinander angeordnete Träger-Innenplatten (1), die ausgebildet sind, auf einander gegenüberliegenden Seiten jeweils Substrate (4) zu tragen, parallel zu den Träger-Innenplatten (1) angeordnete Träger-Außenplatten (2) mit einer den Träger-Innenplatten (1) zugewandten Innenseite und einer von den Träger-Innenplatten (1) abgewandten Außenseite, wobei jede Träger-Außenplatte (2) ausgebildet ist, auf ihrer Innenseite ein oder mehrere Substrate (4) zu tragen und auf ihrer Außenseite Substrat-frei zu sein, und Abschirmplatten (3), die jeweils beabstandet zur Außenseite der Träger-Außenplatte (2) derart angeordnet sind, dass die Abschirmplatten (3) die Träger-Außenplatten (2) in einer Aufsicht auf die Träger-Außenplatten (2) zumindest größtenteils abschatten, wobei jede Abschirmplatte (3) ausgebildet ist, Substrat-frei zu sein. Ferner betrifft die Erfindung die Verwendung der Haltevorrichtung bei einer plasmaunterstützten Abscheidung aus der Gasphase als Haltevorrichtung für Substrate (4).

    HIGH TEMPERATURE SUSCEPTOR WITH FAST HEAT DRAIN CAPABILITY

    公开(公告)号:WO2022240418A1

    公开(公告)日:2022-11-17

    申请号:PCT/US2021/032550

    申请日:2021-05-14

    Abstract: A substrate support assembly includes a cooling plate forming one or more channels configured to receive heat transfer fluid. The substrate support assembly further includes a gas distribution plate disposed on the cooling plate. The gas distribution plate forms an interior volume configured to receive a gas. The substrate support assembly further includes a heating plate disposed on the gas distribution plate. The heating plate includes a resistive heater. The substrate support assembly further includes an electrostatic chuck disposed on the heating plate. The electrostatic chuck is configured to support a substrate in a processing chamber.

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