Matching device and plasma processing apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Issued Date -
Dec 30, 2004
app pub date -
Mar 26, 2004
filing date -
Sep 28, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A machining device includes first branched waveguides (71A-71C) and second branched waveguides (73A-73C) connected perpendicularly to an axial (Z) direction of a cylindrical waveguide (14) and having one end which opens in the cylindrical waveguide (14) and the other end which is electrically short-circuited. The first branched waveguides (71A-71C) are arranged at a predetermined interval in an axial (z) direction of the cylindrical waveguide (14). The second branched waveguides (73A-73C) are arranged in positions which make an angle of 90.degree. with positions of the first branched waveguides (71A-71C) when viewed from the axis (Z) of the cylindrical waveguide (14), and arranged at a predetermined interval in the axial (Z) direction of the cylindrical waveguide (14). With this arrangement, it is possible to accurately and easily control the impedance matching between the supply side and load side of the cylindrical waveguide (14).
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