Abstract:
A microwave plasma apparatus for processing a material includes a plasma chamber, a microwave radiation source, and a waveguide guiding microwave radiation from the microwave radiation source to the plasma chamber. A process gas flows through the plasma chamber and the microwave radiation couples to the process gas to produce a plasma jet. A process material is introduced to the plasma chamber, becomes entrained in the plasma jet, and is thereby transformed to a stream of product material droplets or particles. The product material droplets or particles are substantially more uniform in size, velocity, temperature, and melt state than are droplets or particles produced by prior devices.
Abstract:
A method for coating an optical product made of a viscous material, the method employing an integrated automated apparatus for manufacturing a surface composite which is hard, scratch-free and comprises an antireflection function. In the method at least one surface of the optical product (52) is plasma-etched and a layer (56) comprising the antireflection function is produced using chemical vapor deposition (CVD) method. The method includes manufacturing a hard, scratch-free adhesion layer (53) by piezo spraying varnish onto the plasma-etched surface of the optical product (52); and producing said layer (56) comprising the antireflection function onto the piezo-sprayed layer (53).
Abstract:
Metallic-compound films are formed by plasma-enhanced atomic layer deposition (PEALD). According to preferred methods, film or thin film composition is controlled by selecting plasma parameters to tune the oxidation state of a metal (or plurality of metals) in the film. In some embodiments, plasma parameters are selected to achieve metal-rich metallic-compound films. The metallic-compound films can be components of gate stacks, such as gate electrodes. Plasma parameters can be selected to achieve a gate stack with a predetermined work function.
Abstract:
Methods of forming a metal carbide film are provided. In some embodiments, methods for forming a metal carbide film in an atomic layer deposition (ALD) type process comprise alternately and sequentially contacting a substrate in a reaction space with vapor phase pulses of a metal compound 102 and one or more plasma-excited species of a carbon-containing compound 106. In other embodiments, methods of forming a metal carbide film in a chemical vapor deposition (CVD) type process comprise simultaneously contacting a substrate in a reaction space with a metal compound 102 and one or more plasma-excited species of a carbon-containing compound 106. The substrate is further exposed to a reducing agent 103. The reducing agent removes impurities, including halogen atoms and/or oxygen atoms.
Abstract:
Disclosed is a method of forming a layer of material using an atomic layer deposition (ALD) process in a process chamber of a process tool. In one illustrative embodiment, the method includes identifying a target characteristic for the layer of material, determining a precursor pulse time for introducing a precursor gas into the process chamber during the ALD process to produce the target characteristic in the layer of material, and performing the ALD process that comprises a plurality of steps wherein the precursor gas is introduced into the chamber for the determined precursor pulse time to thereby form the layer of material.
Abstract:
A gas distributor (400) for use in a semiconductor processing chamberl 17 is provided. The gas distributor comprises a gas inlet (420 a gas outlet (516), and a stem section (402) having a spiral thread (404). The gas distributor further comprises a body (414) having a gas deflecting surface (410) that extends radially outward away from the stem section and a lower face disposed on the opposite side of the body from the gas deflecting surface, a lateral seat (406) disposed between the spiral thread and the gas deflecting surface, an a gas passageway (512) that extends from the gas inlet through the stem section and body to the gas outlet. In a specific embodiment, the lateral seat is adapted to hold a sealing member (822).
Abstract:
An apparatus for cleaning a substrate in a reactive ion etch process is disclosed. The apparatus is configured to produce an atmospheric plasma using a RF generation device. The apparatus includes a plasma forming chamber including a cavity defined by a set of interior chamber walls comprised of a dielectric material. The apparatus also includes an atmospheric plasma generated by the RF generation device, the atmospheric plasma protruding from a first end of the cavity to clean the substrate.