PATENT CLAIM ANALYSIS

Application Number: 15949185
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["438", "714000"]

Abstract:
A plasma etching method includes a first process of generating a first plasma from a first processing gas that contains fluorine-containing gas and hydrogen-containing gas, by using a first radio frequency power, to etch a laminated film including a first silicon-containing film layer and a second silicon-containing film layer that is different from the first silicon-containing film layer, with the generated first plasma; and a second process that is performed after the first process and includes generating a second plasma from a second processing gas that contains bromine-containing gas, by using a second radio frequency power, to etch the laminated film with the generated second plasma. Unevenness is formed at an interface between the first silicon-containing film layer and the second silicon-containing film layer in the first process, and the unevenness is removed in the second process.

Claim (Index 19):
A plasma etching method comprising:\n preparing a laminated film including a first silicon-containing film layer and a second silicon-containing film layer that is different from the first silicon-containing film layer; a first process of etching the laminated film with a first plasma containing fluorine and hydrogen; and a second process that is performed after the first process and includes etching the laminated film with a second plasma containing bromine; wherein unevenness is formed at an interface between the first silicon-containing film layer and the second silicon-containing film layer in the first process; and wherein the unevenness is removed in the second process.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 91.0
- Lexical Diversity: 2.86275
- Patent Class: 438.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15361675', '15625165', '15131221', '15352076', '15618557']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8674144330087957
- 35 USC 102 Novelty (BERT): 0.5139379442109769
- Combined Prediction Score: 0.8320667841290139
- Mean Citation Score: 270.059852
- Max Citation Score: 324.33554
- Similarity Product: 286.7813046998072

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