HOLLOW CATHODE DISCHARGE ASSISTANT TRANSFORMER COUPLED PLASMA SOURCE AND OPERATION METHOD OF THE SAME
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United States of America Patent
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Issued Date -
Sep 12, 2024
app pub date -
Jul 12, 2023
filing date -
Mar 7, 2023
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Abstract
Disclosed are a hollow cathode discharge assistant transformer coupled plasma source and an operation method of the same. A reaction chamber with an annular channel is provided, and a ferrite transformer with a first ferrite magnetic core wound with a first coil and a second ferrite magnetic core wound with a second coil and a drive power source is provided. The drive power source applies an AC power supply with a first voltage to the first coil to generate an alternating magnetic field. The second coil generates a second voltage by inducing the alternating magnetic field to excite a working gas in the annular channel into a plasma through a hollow cathode discharge mechanism. The annular channel induces the alternating magnetic field through a transformer coupled plasma mechanism to generate an induced electric field to excite the plasma to form an electric current in the annular channel.
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