Abstract:
Silicon carbide components of a plasma processing apparatus, methods of making the components, and methods of using the components during processing of semiconductor substrates to provide for reduced particle contamination of the substrates are provided. The silicon carbide components are made by a process that results in free-carbon in the components. The silicon carbide components are treated to remove the free-carbon from at least the surface.
Abstract:
Silicon electrode assembly decontamination cleaning methods and solutions, which control or eliminate possible chemical attacks of electrode assembly bonding materials, comprise ammonium fluoride, hydrogen peroxide, acetic acid, optionally ammonium acetate, and deionized water.
Abstract:
An electrode assembly for a plasma reaction chamber used in semiconductor substrate processing having a backing member having a bonding surface, an inner electrode having a lower surface on one side and a bonding surface on the other side, and an outer electrode having a lower surface on one side and a bonding surface on the other side. At least one of the electrodes has a flange, which extends underneath at least a portion of the lower surface of the other electrode.
Abstract:
An actively heated aluminum baffle component such as a thermal control plate (101) or baffle ring (120) of a showerhead electrode assembly (100) of a plasma processing chamber has an exposed outer aluminum oxide layer which is formed by an electropolishing procedure. The exposed outer aluminum oxide layer minimizes defects and particles generated as a result of differential thermal stresses experienced by the aluminum component and outer aluminum oxide layer dupng plasma processing compared to an identically shaped component having a Type III anodized surface.
Abstract:
Methods for cleaning an electrode assembly, which can be used for etching a dielectric material in a plasma etching chamber after the cleaning, comprise polishing a silicon surface of the electrode assembly, preferably to remove black silicon contamination therefrom.
Abstract:
PROBLEM TO BE SOLVED: To provide a silicon part of a semiconductor processing apparatus containing low levels of metal impurities having high mobility in silicon. SOLUTION: In order to remove metal impurities having adhered during cutting in forming this silicon part of a semiconductor processing apparatus, a treatment and a heat treatment are executed to at least a cut surface of a silicon plate with a solution, and the silicon part reduces metal contamination of a wafer when the silicon part is processed in a plasma atmosphere. COPYRIGHT: (C)2010,JPO&INPIT