Abstract:
A temperature control device (308) for controlling temperature of an upper chamber (312) of a plasma processing apparatus (300) is described. The temperature control device includes a thermally conductive body (334) having an inner surface and an outer surface removably connected with and in thermal communication with the upper chamber of the plasma processing apparatus. The temperature control device also includes a plurality of thermal interface layers (344, 348, 350, 352) in thermal communication with the thermally conductive body wherein at least one layer is a heating element (350); and a cooling element (326) connected with the banded thermally conductive body and thermally coupled with the upper chamber of the plasma processing apparatus wherein the cooling element is configured to conduct a fluidic medium. The temperature control device further includes at least one temperature sensor for sensing temperature of the upper chamber, a temperature control unit for controlling the heating element and the cooling element; and a latching mechanism for securing the temperature control device to the upper chamber.
Abstract:
PROBLEM TO BE SOLVED: To provide a device component capable of minimizing erosive and corrosive properties, and contamination by a particle and/or metal in a plasma environment in a reactor, and having sufficiently high erosion resistance and corrosion resistance, including consumables and other components. SOLUTION: A constitutive element for a semiconductor treating device includes a coating film containing thermal sprayed yttria for imparting the erosion resistance, the corrosion resistance and/or the corrosion-erosion resistance in a plasma atmosphere. The coating film protects a substrate from physical and/or chemical attacks. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
An integrated gas flow control assembly for connecting a gas distribution system to a multi-zone injector which includes: a first set of channels connecting the gas distribution system to a first valve assembly, a second valve assembly, a third flow assembly, and a fourth flow assembly; a second set of channels for connecting the third flow assembly and the first valve assembly to a first multi-zone injector zone; and a third set of channels for connecting the fourth flow assembly and the second valve assembly to a second multi-zone injector zone. If the first valve assembly is closed, a first multi-zone injector zone flow rate is about the flow rate through the third flow assembly, and if the second valve assembly is closed, a second multi-zone injector zone flow rate is about the flow rate through the fourth flow assembly.
Abstract:
Methods of surface finishing a component useful for a plasma processing apparatus are provided. The component includes at least one plasma-exposed quartz glass surface. The method includes mechanically polishing, chemically etching and cleaning the plasma-exposed surface to achieve a desired surface morphology. Quartz glass sealing surfaces of the component also can be finished by the methods. Plasma-exposed surface and sealing surfaces of the same component can be finished to different surface morphologies from each other.
Abstract:
Components of semiconductor processing apparatus comprise thermal sprayed yttria-containing coatings that provide erosion, corrosion and/or corrosion-erosion resistance in plasma atmospheres. The coatings can protect substrates from physical and/or chemical attack.
Abstract:
In a plasma processing system, a method of tuning of a set of plasma processing steps is disclosed. The method includes striking a first plasma comprising neutrals and ions in a plasma reactor of the plasma processing system. The method also includes etching in a first etching step a set of layers on a substrate; positioning a movable uniformity ring around the substrate, wherein a bottom surface of the uniformity ring is about the same height as a top surface of the substrate; and striking a second plasma consisting essentially of neutrals in the plasma reactor of the plasma processing system. The method further includes etching in a second etching step the set of layers on the substrate; and wherein the etching in the first step and the etching in the second step are substantially uniform.
Abstract:
In a plasma processing system, a method of tuning of a set of plasma processing steps is disclosed. The method includes striking a first plasma comprising neutrals (320a) and ions (320b) in a plasma reactor of the plasma processing system. The method also includes etching in a first etching step a set of layers on a substrate (303); positioning a movable uniformity ring (302) around the substrate, including an opening (308) that is configured for directing species of plasma towards chuck (314), wherein, a bottom surface of the uniformity ring is about the same height as a top surface of the substrate; and striking a second plasma consisting essentially of neutrals in the plasma reactor of the plasma processing system. The method further includes etching in a second etching step the set of layers on the substrate; and wherein the etching in the first step and the etching in the second step are substantially uniform.
Abstract:
A corrosion resistant component of semiconductor processing equipment such as a plasma chamber comprises zirconia toughened ceramic material as an outermost surface of the component. The component can be made entirely of the ceramic material or the ceramic material can be provided as a coating on a substrate such as aluminum or aluminum alloy, stainless steel, or refractory metal. The zirconia toughened ceramic can be tetragonal zirconia polycrystalline (TZP) material, partially-stabilized zirconia (PSZ), or a zirconia dispersion toughened ceramic (ZTC) such as zirconia-toughened alumina (tetragonal zirconia particles dispersed in Al2O3). In the case of a ceramic zirconia toughened coating, one or more intermediate layers may be provided between the component and the ceramic coating. To promote adhesion of the ceramic coating, the component surface or the intermediate layer surface may be subjected to a surface roughening treatment prior to depositing the ceramic coating.
Abstract:
A method for cleaning a processing chamber is provided. The method initiates with introducing a fluorine containing gaseous mixture into a processing chamber. Then, a plasma is created from the fluorine containing gaseous mixture in the processing chamber. Next, a chamber pressure is established that corresponds to a threshold ion energy in which ions of the plasma clean inner surfaces of the processing chamber without leaving a residue. A method for substantially eliminating residual aluminum fluoride particles deposited by an in-situ cleaning process for a semiconductor processing chamber and a plasma processing system for executing an in-situ cleaning process are also provided.