PATENT CLAIM ANALYSIS

Application Number: 16003954
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["315", "111210"]

Abstract:
In a plasma processing apparatus, a controller controls one or both of a first high frequency power supply and a second high frequency power supply to periodically stop the supply of one or both of the first high frequency power and the second high frequency power. The controller also controls a switching unit to apply a DC voltage to a focus ring from a first time after a predetermined period of time in which a self-bias voltage of a lower electrode is decreased from a start point of each period in which one or both of the first high frequency power and the second high frequency power are supplied and to stop the application of the DC voltage to the focus ring during each period in which the supply of one or both of the first high frequency power and the second high frequency power is stopped.

Claim (Index 1):
A plasma processing apparatus comprising:\n a chamber main body defining a chamber; a stage, provided in the chamber, including a lower electrode and an electrostatic chuck provided on the lower electrode, on which a focus ring is arranged to surround a substrate mounted on the electrostatic chuck; a first high frequency power supply configured to supply a first high frequency power for generating plasma of a gas in the chamber; a second high frequency power supply configured to supply a second high frequency bias power to the lower electrode; a DC power supply configured to generate a negative DC voltage to be applied to the focus ring in order to correct inclination of an incident direction of ions to an edge region of the substrate mounted on the electrostatic chuck with respect to a vertical direction; a switching unit configured to stop the application of the DC voltage to the focus ring; and a controller configured to control one or both of the high frequency power supply and the second high frequency power supply and control the switching unit, wherein the controller controls one or both of the first high frequency power supply and the second high frequency power supply to periodically stop the supply of one or both of the first high frequency power and the second high frequency power, and the controller also controls the switching unit to apply the DC voltage to the focus ring from a first time after a predetermined period of time in which a self-bias voltage of the lower electrode is decreased from a start point of each period in which one or both of the first high frequency power and the second high frequency power are supplied and to stop the application of the DC voltage to the focus ring during each period in which the supply of one or both of the first high frequency power and the second high frequency power is stopped.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 94.0
- Lexical Diversity: 2.83019
- Patent Class: 315.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14183723', '15008855', '14035023', '12707957', '14972286']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6825398640471064
- 35 USC 102 Novelty (BERT): 0.5011097261017735
- Combined Prediction Score: 0.6643968502525732
- Mean Citation Score: 239.885254
- Max Citation Score: 269.8605
- Similarity Product: 235.27094802215697

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test