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 1):
An etching solution suitable for both tungsten-containing metals and GST metals, which comprises:\n 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 having the general formula NR 1 R 2 R 3 R 4 OH, wherein R 1 , R 2 , R 3  and R 4  may be the same as or different from one another and are selected from the group consisting of hydrogen, straight-chained or branched C 1 -C 6  alkyl, and substituted or unsubstituted C 6 -C 10  aryl, (ii) an organic amine having the general formula NR 1 R 2 R 3 , wherein R 1 , R 2  and R 3  may be the same as or different from one another and are selected from the group consisting of hydrogen, straight-chained or branched C 1 -C 6  alkyl, and a straight-chained or branched C 1 -C 6  alcohol, 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.

Metadata:
- Claim Count in Document: 36.0
- Percentile: 86.0
- Lexical Diversity: 1.70769
- Patent Class: 252.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14976737', '14368714', '10584827', '14547864', '15407850']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8348978768399301
- 35 USC 102 Novelty (BERT): 0.4734205075544855
- Combined Prediction Score: 0.7987501399113857
- Mean Citation Score: 178.643482
- Max Citation Score: 187.39941
- Similarity Product: 143.31890467424512

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