PATENT CLAIM ANALYSIS

Application Number: 15961133
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-02
Patent Classification: ["438", "693000"]

Abstract:
A process for chemical mechanical polishing a substrate containing tungsten to at least reduce dishing of tungsten features of 100 μm or less. The process includes providing a substrate containing tungsten features of 100 μm or less; providing a polishing composition, containing, as initial components: water; an oxidizing agent; arginine or salts thereof; a dicarboxylic acid, a source of iron ions; a colloidal silica abrasive; and, optionally, a pH adjusting agent; and, optionally, a surfactant; and, optionally, a biocide; 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 is polished away from the substrate and yet at least reducing dishing of the tungsten features of 100 μm or less.

Claim (Index 8):
The method of  claim 7 , wherein the chemical mechanical polishing composition provided has a tungsten removal rate of \u22651500 \u212b/min with a platen speed of 80 revolutions per minute, a carrier speed of 81 revolutions per minute, a chemical mechanical polishing composition flow rate of 125 mL/min, a nominal down force of 21.4 kPa on a 200 mm polishing machine; and, wherein the chemical mechanical polishing pad comprises a polyurethane polishing layer containing polymeric hollow core microparticles and a polyurethane impregnated non-woven subpad.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 91.0
- Lexical Diversity: 2.38356
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['16335545', '16335552', '16335555', '15421004', '15815292']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9196331986551572
- 35 USC 102 Novelty (BERT): 0.6035749717720428
- Combined Prediction Score: 0.8880273759668458
- Mean Citation Score: 514.439262
- Max Citation Score: 520.4756
- Similarity Product: 511.847797266388

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