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 4):
The etching solution of  claim 3  wherein the tetraalkylammonium hydroxide is selected from the group consisting of tetraethylammonium hydroxide (TEAH), tetramethyammonium hydroxide (TMAH), tetrapropylammonium hydroxide (TPAH), tetrabutylammonium hydroxide (TBAH), tributylmethylammonium hydroxide (TBMAH), benzyltrimethylammonium hydroxide (BTMAH), and combinations thereof

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): 0.8353655510375045
- 35 USC 102 Novelty (BERT): 0.4701147035362467
- Combined Prediction Score: 0.7988404662873787
- Mean Citation Score: 178.643482
- Max Citation Score: 187.39941
- Similarity Product: 147.65442473878025

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