PATENT CLAIM ANALYSIS

Application Number: 16154243
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-05
Patent Classification: ["205", "118000"]

Abstract:
Certain embodiments herein relate to a method of electroplating copper into damascene features using a low copper concentration electrolyte having less than about 10 g/L copper ions and about 2-15 g/L acid. Using the low copper electrolyte produces a relatively high overpotential on the plating substrate surface, allowing for a slow plating process with few fill defects. The low copper electrolyte may have a relatively high cloud point.

Claim (Index 1):
A method of plating copper into damascene features, comprising:\n receiving a substrate having a seed thickness of about 200 nanometers, on average, or thinner; electrically biasing the substrate; immersing the substrate in an aqueous low copper acid-containing electrolyte comprising less than about 10 grams per liter copper ions and at least one suppressor compound, whereby the low copper electrolyte induces a cathodic overpotential on the seed sufficient to protect the seed from dissolution by acid in the electrolyte during immersion; electroplating copper into the features at a current density of about 3 mA/cm 2  or less; and removing the substrate from the electrolyte.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 97.0
- Lexical Diversity: 1.38462
- Patent Class: 205.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13753333', '12573762', '14663279', '14638750', '12971367']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7028825524409804
- 35 USC 102 Novelty (BERT): 0.5422691057952093
- Combined Prediction Score: 0.6868212077764033
- Mean Citation Score: 283.129728
- Max Citation Score: 389.95773
- Similarity Product: 283.7414873118764

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

Dataset: test