H01J37/32568

SYSTEMS AND METHODS OF PLASMA GENERATION WITH MICROWAVES
20230225042 · 2023-07-13 ·

Plasma generators and methods of generating plasma are disclosed. Electrodes in a reaction zone are energized by a high voltage power source that is electrically insulated from the electrodes. A first conductor array, preferably a coil, is electrically coupled to the power source and electrically insulated from the electrodes. A second conductor array, preferably a coaxial coil nested within the first conductor array, is electrically coupled to the electrodes. Electromagnetic induction between the first conductor array and the second conductor array is used to energize the electrodes and generate a plasma in the reaction zone. One or more microwaves are further directed at the plasma to form microwave plasma, either in parallel or in series. Such plasmas are used to reform a hydrocarbon feedstock into low C hydrocarbons, carbon, or hydrogen. Plasma generators combining induction plasma with serial microwave plasmas are further contemplated.

Coating apparatus and movable electrode arrangement, movable support arrangement, and application thereof

A coating apparatus and movable electrode arrangement, movable support arrangement, and application thereof are disclosed. The coating apparatus includes a reactor chamber body and a movable support arrangement. The reactor chamber body has a reactor chamber. The movable support arrangement is received in the reactor chamber and includes one or more electrodes and a movable support. The movable support is adapted for rotating relative to the reactor chamber body. At least one of the electrodes is arranged on the movable support so as for rotating together with the movable support. One or more workpieces to be coated are adapted for being held on the movable support to move together with the movable support.

METHOD FOR ETCHING FILM AND PLASMA PROCESSING APPARATUS

An etching apparatus includes: a chamber; a substrate support disposed in the chamber; one or more heaters disposed in the substrate support; a gas supply; a plasma generator; a controller configured to perform an etching process comprising a plurality of cycles; and a heater controller. Each cycle includes: controlling the gas supply to supply a precursor into the chamber, thereby forming a precursor layer on a substrate supported by the substrate support, the substrate including a film and a mask; and controlling the gas supply and the plasma generator to supply a process gas into the chamber and generate a plasma from the process gas in the chamber, thereby etching the film through the mask.

ELECTROSTATIC CHUCK DEVICE

An electrostatic chuck device includes: an electrostatic chuck plate having a dielectric substrate having a placement surface on which a wafer is placed and an adsorption electrode positioned in the dielectric substrate; a metal base supporting the electrostatic chuck plate from a back surface side opposite to the placement surface; and a focus ring installed on an outer peripheral portion of the electrostatic chuck plate and surrounding the placement surface. The electrostatic chuck plate has a ring adsorption region which is adsorbed to the focus ring and is located on a surface positioned on the same side as the placement surface and has a base adsorption region which is adsorbed to the metal base and located on a back surface opposite to the placement surface.

Arcing Reduction in Wafer Bevel Edge Plasma Processing
20230215692 · 2023-07-06 ·

Methods and systems for processing a bevel edge of a wafer in a bevel plasma chamber. The method includes receiving a pulsed mode setting for a RF generator of the bevel plasma chamber. The method includes identifying a duty cycle for the pulsed mode, the duty cycle defining an ON time and an OFF time during each cycle of power delivered by the generator. The method includes calculating or accessing a compensation factor to an input RF power setting of the generator. The compensation factor is configured to add an incremental amount of power to the input power setting to account for a loss in power attributed to the duty cycle to be run in the pulsed mode. The method is configured to run the generator in the pulse mode with the duty cycle and the pulsing frequency. The generator is configured to generate the input power in pulsing mode that includes incremental amount of power to achieve an effective power in the bevel plasma chamber to achieve a target bevel processing throughput, while reducing charge build-up that causes arcing damage.

Substrate processing apparatus

The present inventive concept relates to a substrate treatment apparatus comprising: a support part for supporting a substrate; a first electrode part disposed above the support part; a second electrode part disposed above the first electrode part; a generation hole formed to extend through the first electrode part; and a protruding electrode coupled to the second electrode part while protruding downward from the second electrode part at a position corresponding to the generation hole, wherein the protruding electrode is formed to have a shorter length than the first electrode part in the vertical direction.

Spatially variable wafer bias power system

A plasma deposition system comprising a wafer platform, a second electrode, a first electrode, a first high voltage pulser, and a second high voltage pulser. In some embodiments, the second electrode may be disposed proximate with the wafer platform. In some embodiments, the second electrode can include a disc shape with a central aperture; a central axis, an aperture diameter, and an outer diameter. In some embodiments, the first electrode may be disposed proximate with the wafer platform and within the central aperture of the second electrode. In some embodiments, the first electrode can include a disc shape, a central axis, and an outer diameter. In some embodiments, the first high voltage pulser can be electrically coupled with the first electrode. In some embodiments, the second high voltage pulser can be electrically coupled with the second electrode.

ELECTRODE TUNING, DEPOSITING, AND ETCHING METHODS
20230215735 · 2023-07-06 ·

A method of forming features over a semiconductor substrate is provided. The method includes supplying a gas mixture over a surface of a substrate at a continuous flow rate. A first radio frequency (RF) signal is delivered to an electrode while the gas mixture is supplied at the continuous flow rate to deposit a polymer layer over the surface of the substrate. The surface of the substrate includes an oxide containing portion and a nitride containing portion. A second RF signal is delivered to the electrode while continuously supplying the gas mixture at the continuous flow rate to selectively etch the oxide containing portion relative to the nitride containing portion.

Apparatus and method for delivering a plurality of waveform signals during plasma processing

Embodiments of the present disclosure generally relate to a system used in a semiconductor device manufacturing process. More specifically, embodiments provided herein generally include apparatus and methods for synchronizing and controlling the delivery of an RF bias voltage signal and a pulsed voltage waveform to one or more electrodes within a plasma processing chamber. Embodiments of the disclosure include a method and apparatus for synchronizing a pulsed radio frequency (RF) waveform to a pulsed voltage (PV) waveform, such that the pulsed RF waveform is on during a first stage of the PV waveform and off during a second stage. The first stage of the PV waveform includes a sheath collapse stage. The second stage of the PV waveform includes an ion current stage.

ELECTROSTATIC CHUCK ASSEMBLY FOR PLASMA PROCESSING APPARATUS
20230005778 · 2023-01-05 ·

An electrostatic chuck including a clamping layer having a first clamping electrode and a second clamping electrode is disclosed. A first clamping electrode defining a first clamping zone and a second clamping zone is provided. The first clamping zone and the second clamping zone are separated by a first gap and are electrically connected by at least one electrical connection extending across the first gap. A second clamping electrode disposed radially outward from the first clamping electrode. The second clamping electrode defining a third clamping zone and a fourth clamping zone that are separated by a second gap. The third clamping zone and the fourth clamping zone are electrically connected by at least one electrical connection extending across the second gap. Plasma processing apparatuses and systems incorporating the electrostatic chuck are also provided.