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 5):
The plasma etching method according to  claim 1 , wherein a radio frequency power that is greater than the first radio frequency power or the second radio frequency power is further applied in at least one of the first process and the second process.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 91.0
- Lexical Diversity: 2.86275
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15361675', '15625165', '15131221', '15352076', '15618557']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8804251395413644
- 35 USC 102 Novelty (BERT): 0.5192474920488525
- Combined Prediction Score: 0.8443073747921132
- Mean Citation Score: 270.059852
- Max Citation Score: 324.33554
- Similarity Product: 260.30220158201934

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