PATENT CLAIM ANALYSIS

Application Number: 15945799
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["257", "407000"]

Abstract:
Gate structures and methods of forming the gate structures are described. In some embodiments, a method includes forming source/drain regions in a substrate, and forming a gate structure between the source/drain regions. The gate structure includes a gate dielectric layer over the substrate, a work function tuning layer over the gate dielectric layer, a first metal over the work function tuning layer, an adhesion layer over the first metal, and a second metal over the adhesion layer. In some embodiments, the adhesion layer can include an alloy of the first and second metals, and may be formed by annealing the first and second metals. In other embodiments, the adhesion layer can include an oxide of at least one of the first and/or second metal, and may be formed at least in part by exposing the first metal to an oxygen-containing plasma or to a natural environment.

Claim (Index 8):
A structure comprising:\n a first source/drain region; a second source/drain region; a channel region interposed between the first source/drain region and the second source/drain region; an inter-layer dielectric over the first source/drain region and the second source/drain region; a gate structure over the channel region, the gate structure comprising:\n a gate dielectric layer; \n a work function tuning layer over the gate dielectric layer; \n a first metal over the work function tuning layer; \n an adhesion layer over the first metal; and \n a second metal over the adhesion layer, wherein the adhesion layer comprises:\n an oxide of the first metal and the second metal; \n an oxide of the second metal over an oxide of the first metal; or \n an alloy of the first metal and the second metal.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 91.0
- Lexical Diversity: 2.72881
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14730444', '14871580', '15859947', '15297850', '15793163']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9114897606225923
- 35 USC 102 Novelty (BERT): 0.4642415334114467
- Combined Prediction Score: 0.8667649379014778
- Mean Citation Score: 179.263974
- Max Citation Score: 198.73132
- Similarity Product: 173.52613553805833

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