PATENT CLAIM ANALYSIS

Application Number: 16112435
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2018-12
Patent Classification: ["438", "712000"]

Abstract:
An etching method is provided for selectively etching a first region of silicon oxide with respect to a second region of silicon nitride by performing plasma processing on a target object including the first region and the second region. In the etch method, first, a plasma of a processing gas including a fluorocarbon gas is generated in a processing chamber where the target object is accommodated. Next, the plasma of the processing gas including the fluorocarbon gas is further generated in the processing chamber where the target object is accommodated. Next, the first region is etched by radicals of fluorocarbon contained in a deposit which is formed on the target object by the generation and the further generation of the plasma of the processing gas containing the fluorocarbon gas. A high frequency powers used for the plasma generation is smaller than a high frequency power used for plasma further generation.

Claim (Index 15):
The selective etching method of  claim 1 , wherein the first silicon containing material is silicon oxide and the second silicon containing material is silicon nitride.

Metadata:
- Claim Count in Document: 41.0
- Percentile: 96.0
- Lexical Diversity: 2.78947
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14995552', '14995269', '16069757', '14995392', '15202356']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8705748862060437
- 35 USC 102 Novelty (BERT): 0.5175218020306663
- Combined Prediction Score: 0.835269577788506
- Mean Citation Score: 305.85859
- Max Citation Score: 318.94983
- Similarity Product: 303.7075817330575

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