PATENT CLAIM ANALYSIS

Application Number: 16080489
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-01
Patent Classification: ["438", "692000"]

Abstract:
A process for chemical mechanical polishing a substrate containing tungsten and titanium is provided comprising: providing the substrate; providing a polishing composition, containing, as initial components: water; an oxidizing agent; an allylamine additive; a carboxylic acid; a source of iron ions; a colloidal silica abrasive with a positive surface charge; and, optionally pH adjusting agent; providing a chemical mechanical polishing pad, having a polishing surface; creating dynamic contact at an interface between the polishing pad and the substrate; and dispensing the polishing composition onto the polishing surface at or near the interface between the polishing pad and the substrate; wherein the tungsten (W) is selectively polished away from the substrate relative to the titanium (Ti).

Claim (Index 7):
The method of  claim 1 , wherein the chemical mechanical polishing composition, provided comprises, as initial components:\n the water; 0.01 to 10 wt % of the oxidizing agent, wherein the oxidizing agent is hydrogen peroxide;\n 0.01 to 10 wt % of the colloidal silica abrasive; \n the allylamine additive, wherein the allylamine additive is poly(allylamine) and wherein the mass ratio of the colloidal silica abrasive to the allylamine additive is \u2265150; \n 500 to 5,000 ppm by mass of the carboxylic acid, wherein the carboxylic acid is propanedioic acid; \n 100 to 1,000 ppm by mass of the source of iron (III) ions, wherein the source of iron (III) ions is ferric nitrate; and, \n optionally, the pH adjusting agent; and, \n wherein the chemical mechanical polishing composition has a pH of 1 to 4.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 96.0
- Lexical Diversity: 1.95714
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['16080841', '16335552', '16335555', '15815276', '15421004']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8978666159368376
- 35 USC 102 Novelty (BERT): 0.5350744395455288
- Combined Prediction Score: 0.8615873982977067
- Mean Citation Score: 355.628614
- Max Citation Score: 373.44443
- Similarity Product: 325.55329704723

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