| 摘要 |
A plasma processing chamber with a probe apparatus configured to measure a set of electrical characteristics in a plasma is disclosed. The plasma processing chamber includes a set of plasma chamber surfaces configured to be exposed to the plasma. The probe apparatus includes a collection disk structure configured to be exposed to the plasma, whereby the collection disk structure is coplanar with at least one of the set of plasma chamber surfaces. The probe apparatus also includes a conductive path configured to transmit the set of electrical characteristics from the collection disk structure to a set of transducers.
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