PATENT CLAIM ANALYSIS

Application Number: 15975852
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["438", "714000"]

Abstract:
A selectivity can be improved in a desirable manner when etching a processing target object containing silicon carbide. An etching method of processing the processing target object, having a first region containing silicon carbide and a second region containing silicon nitride and in contact with the first region, includes etching the first region to remove the first region atomic layer by atomic layer by repeating a sequence comprising: generating plasma from a first gas containing nitrogen to form a mixed layer containing ions contained in the plasma generated from the first gas in an atomic layer of an exposed surface of the first region; and generating plasma from a second gas containing fluorine to remove the mixed layer by radicals contained in the plasma generated from the second gas.

Claim (Index 2):
The etching method of  claim 1 ,\n wherein, in the first process, the mixed layer containing the ions is formed in the atomic layer of the exposed surface of the first region by applying a bias voltage to the plasma generated from the first gas.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 93.0
- Lexical Diversity: 2.36842
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15954802', '15952328', '15007420', '14863863', '15952359']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8763315936377427
- 35 USC 102 Novelty (BERT): 0.5024303651824815
- Combined Prediction Score: 0.8389414707922166
- Mean Citation Score: 238.835716
- Max Citation Score: 256.23923
- Similarity Product: 186.37407575594423

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