PATENT CLAIM ANALYSIS

Application Number: 15904157
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-09
Patent Classification: ["438", "724000"]

Abstract:
A method of preparing a self-aligned block (SAB) structure is described. The method includes providing a substrate having raised features defined by a first material containing silicon nitride and a second material containing silicon oxide formed on side walls of the first material, and a third material containing an organic material covering some of the raised features and exposing some raised features according to a block pattern formed in the third material. The method further includes 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 N, F, O, 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 and third 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 and third materials.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 88.0
- Lexical Diversity: 2.62121
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15687142', '15686546', '15904144', '15874703', '15607391']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8813970196316884
- 35 USC 102 Novelty (BERT): 0.514951427034937
- Combined Prediction Score: 0.8447524603720133
- Mean Citation Score: 271.35269800000003
- Max Citation Score: 322.11646
- Similarity Product: 287.09148348495006

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