PATENT CLAIM ANALYSIS

Application Number: 15964738
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["257", "365000"]

Abstract:
Semiconductor devices and fabrication methods are provided. A fabrication method includes: forming a source and drain material layer over a substrate; forming a mask layer over the source and drain material layer and including a first trench exposing a portion of the source and drain material layer; forming a protective layer on sidewalls of the first trench; forming a second trench in the source and drain material layer using the mask layer and the protective layer as an etch mask; removing the protective layer after the second trench is formed; forming a channel material layer and a gate structure on the channel material layer after the protective layer is removed; and removing the mask layer after the channel material layer and the gate structure are formed. The channel material layer is on the sidewalls and the bottom of the first trench and the second trench.

Claim (Index 4):
The method according to  claim 1 , wherein forming the channel material layer and the gate structure comprises:\n forming a channel material film on the sidewalls and the bottom of the first trench, the sidewalls and the bottom of the second trench, and the mask layer; forming a gate structure material layer on a surface of the channel material film; forming a filling layer filling the first trench and the second trench, after the gate structure material layer is formed; and planarizing the gate structure material layer and the channel material film by removing a portion of the gate structure material layer and a portion of the channel material film until the top surface of the mask layer and the top surface of the filling layer are exposed, wherein a remaining channel material film forms the channel material layer and a remaining gate structure material layer forms the gate structure layer.

Metadata:
- Claim Count in Document: 47.0
- Percentile: 91.0
- Lexical Diversity: 3.22917
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['11024935', '14554651', '10869764', '14900594', '15177362']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.927662496527974
- 35 USC 102 Novelty (BERT): 0.5002475387880153
- Combined Prediction Score: 0.8849210007539783
- Mean Citation Score: 237.931146
- Max Citation Score: 245.15678
- Similarity Product: 174.4907255711436

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

Dataset: test