PATENT CLAIM ANALYSIS

Application Number: 15752241
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-01
Patent Classification: ["257", "401000"]

Abstract:
Embodiments of the present invention are directed to formation of fins with different active channel heights in a tri-gate or a Fin-FET device. In an embodiment, at least two fins are formed on a front side of the substrate. A gate structure extends over a top surface and a pair of sidewalls of at least a portion of the fins. In an embodiment, the substrate is thinned to expose the bottom surface of the fins. Next, backside etching may be performed on each fin to form active channel regions. The fins may be recessed to different depths, forming active channel regions with differing heights.

Claim (Index 9):
A method for fabricating a semiconductor device, comprising:\n providing a semiconductor substrate having a front surface and a back surface; forming a plurality of fins on the front surface of the substrate; depositing an isolation layer between the plurality of fins such that at least a top portion of the fins are above a top surface of the isolation layer; forming a gate structure in a channel region over the top portion of the fins and over the isolation layer between the fins; exposing the fins from the back surface of the substrate; and etching the fins from the back surface of the substrate to different depths to form active channel regions with differing heights.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 88.0
- Lexical Diversity: 1.78125
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15195174', '15249534', '15115852', '14863079', '14552237']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9151030672751972
- 35 USC 102 Novelty (BERT): 0.4756461172328395
- Combined Prediction Score: 0.8711573722709615
- Mean Citation Score: 202.676458
- Max Citation Score: 206.07123
- Similarity Product: 165.66820414520149

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