PATENT CLAIM ANALYSIS

Application Number: 15866008
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-07
Patent Classification: ["438", "693000"]

Abstract:
The invention provides a method of chemically-mechanically polishing a substrate comprising providing a substrate comprising a tungsten layer on a surface of the substrate and a silicon oxide layer on a surface of the substrate, providing a chemical-mechanical polishing composition comprising a tungsten layer and a silicon oxide layer using a chemical-mechanical polishing composition comprising a) surface-modified colloidal silica particles, comprising a negatively-charged group on the surface of the particles, wherein the surface-modified colloidal silica particles have a negative charge, a particle size of about 90 nm to about 350 nm, and a zeta potential of about −20 mV to about −70 mV at a pH of about 2, b) an iron compound, c) a stabilizing agent, and d) an aqueous carrier, and contacting the substrate with a polishing pad and the chemical mechanical polishing composition to polish the substrate.

Claim (Index 4):
The method of  claim 3 , wherein the surface-modified colloidal silica particles have a particle size of about 120 nm to about 180 nm.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 86.0
- Lexical Diversity: 2.33333
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15864720', '14222086', '14750204', '14222736', '16335552']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8879468564800437
- 35 USC 102 Novelty (BERT): 0.5459332387731225
- Combined Prediction Score: 0.8537454947093517
- Mean Citation Score: 312.3166960000001
- Max Citation Score: 394.98624
- Similarity Product: 376.3595954821015

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test