PATENT CLAIM ANALYSIS

Application Number: 15904144
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-09
Patent Classification: ["438", "724000"]

Abstract:
A method of etching is described. The method includes providing a substrate having a first material containing silicon nitride and a second material that is different from the first material, forming a first chemical mixture by plasma-excitation of a first process gas containing H and optionally a noble gas, and exposing the first material on the substrate to the first chemical mixture. Thereafter, the method includes forming a second chemical mixture by plasma-excitation of a second process gas containing S and F, and optionally a noble element, and exposing the first material on the substrate to the second plasma-excited process gas to selectively etch the first material relative to the second material.

Claim (Index 15):
The method of  claim 1 , wherein the first material is removed at an etch selectivity of greater than 100-to-1 relative to the second material.

Metadata:
- Claim Count in Document: 36.0
- Percentile: 88.0
- Lexical Diversity: 2.6087
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15904157', '15687142', '15686546', '14541978', '12892912']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8786755248655759
- 35 USC 102 Novelty (BERT): 0.502909089202845
- Combined Prediction Score: 0.8410988812993029
- Mean Citation Score: 252.180086
- Max Citation Score: 293.57895
- Similarity Product: 263.1694479866088

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

Dataset: test