PATENT CLAIM ANALYSIS

Application Number: 16224458
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-05
Patent Classification: ["257", "751000"]

Abstract:
Low-temperature techniques for doping of Cu interconnects based on interfacially-assisted thermal diffusion are provided. In one aspect, a method of forming doped copper interconnects includes the steps of: patterning at least one trench in a dielectric material; forming a barrier layer lining the trench; forming a metal liner on the barrier layer; depositing a seed layer on the metal liner; plating a Cu fill into the trench to form Cu interconnects; removing a portion of a Cu overburden to access an interface between the metal liner and the Cu fill; depositing a dopant layer; and diffusing a dopant(s) from the dopant layer along the interface to form a Cu interconnect doping layer between the metal liner and the Cu fill. Alternatively, the overburden and the barrier layer/metal liner can be completely removed, and the dopant layer deposited selectively on the Cu fill. An interconnect structure is also provided.

Claim (Index 3):
The interconnect structure of  claim 1 , wherein the metal liner comprises ruthenium (Ru).

Metadata:
- Claim Count in Document: 50.0
- Percentile: 98.0
- Lexical Diversity: 2.18421
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15670387', '14862580', '14864002', '16163256', '14809266']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9370483848287936
- 35 USC 102 Novelty (BERT): 0.5758256269504815
- Combined Prediction Score: 0.9009261090409624
- Mean Citation Score: 363.997184
- Max Citation Score: 456.8849
- Similarity Product: 451.7254921826244

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

Dataset: test