PATENT CLAIM ANALYSIS

Application Number: 16218703
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-04
Patent Classification: ["216", "067000"]

Abstract:
To improve processing uniformity by improving a working characteristic in an edge exclusion region. Provided is a plasma processing apparatus for processing a sample by generating plasma in a vacuum vessel to which a processing gas is supplied and that is exhausted to a predetermined pressure and by applying a radio frequency bias to a sample placed in the vacuum vessel, wherein a conductive radio frequency ring to which a radio frequency bias power is applied is arranged in a stepped part formed outside a convex part of the sample stage on which the wafer is mounted, and a dielectric cover ring is provided in the stepped part, covering the radio frequency ring, the cover ring substantially blocks penetration of the radio frequency power to the plasma from the radio frequency ring, and the radio frequency ring top surface is set higher than a wafer top surface.

Claim (Index 12):
A plasma processing method for processing a sample which is placed on an upper surface of a sample stage disposed in a processing chamber, the method further comprising steps of:\n generating plasma using a processing gas supplied into the processing chamber which is decompressed to a predetermined pressure; applying radio frequency power during the plasma is generated to an electrode inside the sample stage and a ring-shaped member which is constituted by a conducting material and arranged in an outer circumferential region of the upper surface of the sample stage, and making bias potential using the radio frequency power over a surface of the sample placed on the upper surface of the sample stage and over a surface of a dielectric ring member which is arranged in an outer circumferential region of the upper surface of the sample stage and covers the ring-shaped member against the plasma; and wherein the top surface of the ring-shaped member is set higher than the upper surface of the sample stage, and the radio frequency power applied to the ring shaped member is adjusted so as not to be coupled to the plasma.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 98.0
- Lexical Diversity: 2.23188
- Patent Class: 216.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15057157', '11666773', '14626911', '15919682', '12570359']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7163792769917271
- 35 USC 102 Novelty (BERT): 0.4698457506874929
- Combined Prediction Score: 0.6917259243613038
- Mean Citation Score: 181.804908
- Max Citation Score: 212.38345
- Similarity Product: 189.216874949354

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test