PATENT CLAIM ANALYSIS

Application Number: 16049273
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-12
Patent Classification: ["257", "384000"]

Abstract:
A semiconductor device includes a fin field effect transistor (FinFET). The FinFET includes a channel disposed on a fin, a gate disposed over the channel and a source and drain. The channel includes at least two pairs of a first semiconductor layer and a second semiconductor layer formed on the first semiconductor layer. The first semiconductor layer has a different lattice constant than the second semiconductor layer. A thickness of the first semiconductor layer is three to ten times a thickness of the second semiconductor layer at least in one pair.

Claim (Index 10):
A method of forming a semiconductor device including fin field effect transistors (FinFETs), the method comprising:\n epitaxially forming a first semiconductor layer on a substrate; epitaxially forming a second semiconductor layer on the first semiconductor layer; epitaxially forming a third semiconductor layer on the second semiconductor layer; forming a fourth semiconductor layer over the third semiconductor layer; patterning the first to fourth semiconductor layers and the substrate, thereby forming a channel fin formed by part of the first to fourth semiconductor layers and a base fin formed by part of the substrate; forming a dummy gate structure over a part of the channel fin; removing the first and third semiconductor layers not covered by the dummy gate structure, so as to leave the second and fourth semiconductor layers in a source/drain region; forming source/drain epitaxial layers on the second and fourth semiconductor layer in the source/drain region, respectively; removing the dummy gate structure to make a gate space; and forming a gate structure in the gate space, wherein: the first and third semiconductor layers are made of a first semiconductor material, the second semiconductor layer is made of a second semiconductor material having a different lattice constant than the first semiconductor material, and thicknesses of the first and third semiconductor layers are three to ten times a thickness of the second semiconductor layer.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 95.0
- Lexical Diversity: 2.10638
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15429861', '15130370', '14504258', '15256313', '15700377']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9175099370137284
- 35 USC 102 Novelty (BERT): 0.5011301864195038
- Combined Prediction Score: 0.8758719619543058
- Mean Citation Score: 236.927418
- Max Citation Score: 277.3861
- Similarity Product: 220.2685782425523

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

Dataset: test