PATENT CLAIM ANALYSIS

Application Number: 15754887
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["257", "347000"]

Abstract:
Semiconductor contact architectures are provided, wherein contact metal extends into the semiconductor layer to which contact is being made, thereby increasing contact area. An offset spacer allows a relatively deep etch into the semiconductor material to be achieved. Thus, rather than just a flat horizontal surface of the semiconductor being exposed for contact area, relatively long vertical trench sidewalls and a bottom wall are exposed and available for contact area. The trench can then be filled with the desired contact metal. Doping of the semiconductor layer into which the contact is being formed can be carried out in a manner that facilitates an efficient contact trench etch process, such as by, for example, utilization of post trench etch doping or a semiconductor layer having an upper undoped region through which the contact trench etch passes and a lower doped S/D region. The offset spacer may be removed from final structure.

Claim (Index 17):
An integrated circuit including at least one transistor, the integrated circuit comprising:\n a fin extending vertically from a substrate, the fin including semiconductor material; a gate structure at least over the fin, the gate structure including a gate electrode and a gate dielectric, the gate dielectric between the gate electrode and the fin; a source region and a drain region, the fin between the source and drain regions, wherein the source and drain regions include semiconductor material; a first trench extending into the source region and a second trench extending into the drain region, the first trench having a depth that is at least 25% of the total vertical length of the source region, and the second trench having a depth that is at least 25% of the total vertical length of the drain region; and a first contact structure substantially filling the first trench and a second contact structure substantially filling the second trench, the first and second contact structures including metal.

Metadata:
- Claim Count in Document: 18.0
- Percentile: 88.0
- Lexical Diversity: 1.81111
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15859412', '15024750', '14020299', '14739994', '13622974']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9112386660948067
- 35 USC 102 Novelty (BERT): 0.4980041974700342
- Combined Prediction Score: 0.8699152192323296
- Mean Citation Score: 193.74111
- Max Citation Score: 205.04637
- Similarity Product: 129.20865423621834

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