PATENT CLAIM ANALYSIS

Application Number: 16069757
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-03
Patent Classification: ["216", "067000"]

Abstract:
A method of selectively etching a first region R 1  made of silicon oxide with respect to a second region R 2  made of silicon nitride by performing a plasma processing upon a processing target object is provided. The processing target object has the second region R 2  forming a recess; the first region R 1  configured to fill the recess; and a mask MK provided on the first region R 1 . The method includes a first process of generating plasma of a processing gas containing a fluorocarbon gas, and a second process of etching the first region with radicals of fluorocarbon contained in a deposit. In the second process, a high frequency power contributing to the generating of the plasma is applied in a pulse shape, and these processes are repeated.

Claim (Index 14):
The etching method of  claim 7 ,\n wherein an etching amount of the first region in the first sequence is less than an etching amount of the first region in the second sequence.

Metadata:
- Claim Count in Document: 14.0
- Percentile: 95.0
- Lexical Diversity: 2.20312
- Patent Class: 216.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14995269', '14995552', '15527360', '14995392', '15184049']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8147680996322002
- 35 USC 102 Novelty (BERT): 0.5199031388226337
- Combined Prediction Score: 0.7852816035512435
- Mean Citation Score: 320.627042
- Max Citation Score: 332.36383
- Similarity Product: 224.3890334807408

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

Dataset: test