PATENT CLAIM ANALYSIS

Application Number: 16175667
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-02
Patent Classification: ["438", "693000"]

Abstract:
Chemical mechanical polishing (CMP) compositions, methods and systems are for polishing patterned semiconductor wafers. The CMP compositions comprising an abrasive and a water soluble aluminum compound additive with a pH>7 suppress CMP stop layer (a silicon containing layer, such as silicon nitride, silicon oxide, or silicon carbide) removal rate. CMP compositions optionally contain surfactant to help wet surface; a corrosion inhibitor to provide corrosion inhibition on metal lines, vias, or trenches; and a pH adjusting agent that is used to adjust pH of the CMP polishing composition.

Claim (Index 18):
A system for chemical mechanical planarization, comprising:\n a patterned substrate comprising at least one surface having a first material selected from the group consisting of a metal, a barrier or liner material, a dielectric material and combinations thereof; and a second material comprising at least one silicon containing material; a polishing pad; and a polishing composition to the at least one surface, the polishing composition comprising:\n 0.01 wt. % to 20 wt.% of colloidal silica particles; \n 0.01 wt. % to 10 wt. % of a water soluble aluminum compound selected from the group consisting of sodium aluminate, potassium aluminate, aluminum acetate, aluminum hydroxide, and combinations thereof; \n optionally, \n 0.0001 wt % to about 5 wt % of a pH adjusting agent; \n 0.0001 wt % to 10 wt % of a surfactant selected from the group consisting of a). non-ionic surface wetting agents; b). anionic surface wetting agents; c). cationic surface wetting agents; d). ampholytic surface wetting agents; and mixtures thereof; \n 0.001% to about 5 wt % of a corrosion inhibitor selected from the group consisting of chemical additive containing nitrogen atoms in the molecules; \n 0.5 wt % to 10 wt % of an oxidizing agent selected from the group consisting of peroxy-compound comprising at least one peroxy group (O\u2014O), oxidized halide, perboric acid, perborate, percarbonate, peroxyacid, permanganate, chromate, cerium compound, ferricyanide, and mixtures thereof; and \n 0.1 wt % to 5 wt % of an organic acid selected from the group consisting of benzenesulfonic acid, toluenesulfonic acid or any other suitable organic acid or amino acid or salt thereof; \n and \n water; \n wherein the polishing composition has a pH above 7 \n and the at least one surface is in contact with the polishing pad and the polishing composition.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 97.0
- Lexical Diversity: 1.48571
- Patent Class: 438.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15268956', '14993128', '16125724', '14800323', '15166605']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8869075997046855
- 35 USC 102 Novelty (BERT): 0.6210841085821912
- Combined Prediction Score: 0.8603252505924361
- Mean Citation Score: 425.386524
- Max Citation Score: 637.48114
- Similarity Product: 506.7219412305188

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

Dataset: test