PATENT CLAIM ANALYSIS

Application Number: 16122940
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-03
Patent Classification: ["438", "757000"]

Abstract:
Described are compositions and methods useful for wet-etching a microelectronic device substrate that includes silicon nitride; the compositions including phosphoric acid, hexafluorosilicic acid, and an amino alkoxy silane, and optionally one or more additional optional ingredients; a wet etching method of a substrate that includes silicon nitride and silicon oxide, that uses a composition as described, can achieve useful or improved silicon nitride etch rate, useful or improved silicon nitride selectivity, a combination of these, and optionally a reduction in particles present at a substrate surface after etching.

Claim (Index 3):
The composition of  claim 1 , wherein the amino alkoxy silane has the formula:\n Si(R1)(R2)(R3)(R4) wherein each of R1, R2, R3, and R4 is an alkyl group, an alkylamine group, an alkoxy, or a hydroxyl group, at least one of R1, R2, R3, and R4 is an alkoxy or hydroxyl group, and at least one of R1, R2, R3, and R4 is an alkylamine group.

Metadata:
- Claim Count in Document: 34.0
- Percentile: 97.0
- Lexical Diversity: 1.67797
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14331958', '12520138', '14880698', '14824786', '14573845']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8758666957978619
- 35 USC 102 Novelty (BERT): 0.4810978375219196
- Combined Prediction Score: 0.8363898099702677
- Mean Citation Score: 197.036978
- Max Citation Score: 203.26694
- Similarity Product: 157.33848358852865

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