PATENT CLAIM ANALYSIS

Application Number: 15872620
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["252", "079500"]

Abstract:
Described herein is an etching solution suitable for both tungsten-containing metals and GST metals, which comprises: water; at least one phenolic derivative compound having at least two hydroxyl groups; at least one strong base selected from the group consisting of (i) a quaternary base; (ii) an organic amine; and (iii) a metal hydroxide; optionally an ammonium salt of an organic acid; and optionally a water-miscible solvent, wherein the pH of the etching solution is 10 or greater, and wherein the etching solution is substantially free of a peroxide oxidizer and a metal ion-containing oxidizer.

Claim (Index 11):
The etching solution of  claim 1  wherein said etching composition comprises the ammonium salt of an organic acid, wherein said ammonium salt of an organic acid is triammonium citrate.

Metadata:
- Claim Count in Document: 36.0
- Percentile: 86.0
- Lexical Diversity: 1.70769
- Patent Class: 252.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14976737', '14368714', '10584827', '14547864', '15407850']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8152776706048191
- 35 USC 102 Novelty (BERT): 0.467796124375526
- Combined Prediction Score: 0.7805295159818898
- Mean Citation Score: 178.643482
- Max Citation Score: 187.39941
- Similarity Product: 154.42365956562278

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