PATENT CLAIM ANALYSIS

Application Number: 16080441
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["438", "693000"]

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; a chitosan; a dicarboxylic acid, wherein the dicarboxylic acid is selected from the group consisting of propanedioic acid and 2-hydroxypropanedioic 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 some of the tungsten (W) and some of the titanium (Ti) is polished away from the substrate with a removal selectivity for the tungsten (W) relative to the titanium (Ti).

Claim (Index 10):
The method of  claim 8 , wherein the chemical mechanical polishing composition provided has a titanium removal rate of \u226425 \u212b/min and wherein the removal rate selectivity between the tungsten (W) and the titanium (Ti) is \u2265300.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 96.0
- Lexical Diversity: 2.26316
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['16080489', '16080841', '15421004', '16335552', '16335555']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8982348416980916
- 35 USC 102 Novelty (BERT): 0.550603743036896
- Combined Prediction Score: 0.8634717318319721
- Mean Citation Score: 368.096486
- Max Citation Score: 416.7497
- Similarity Product: 341.5579631888867

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