PATENT CLAIM ANALYSIS

Application Number: 15971225
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["257", "190000"]

Abstract:
The present invention relates generally to semiconductor devices and more particularly, to a structure and method of forming a fin using double trench epitaxy. The fin may be composed of a III-V semiconductor material and may be grown on a silicon, silicon germanium, or germanium substrate. A double trench aspect ratio trapping (ART) epitaxy method may trap crystalline defects within a first trench (i.e. a defective region) and may permit formation of a fin free of patterning defects in an upper trench (i.e. a fin mold). Crystalline defects within the defective region may be trapped via conventional aspect ratio trapping or three-sided aspect ratio trapping. Fin patterning defects may be avoided by utilizing a fin mold to grow an epitaxial fin and selectively removing dielectric material adjacent to a fin region.

Claim (Index 4):
The method of  claim 1 , further comprising:\n removing the epitaxial layer from the one or more second trenches no further down than a bottom surface of the second dielectric layer; forming a second epitaxial layer within the one or more second trenches; and partially removing the second dielectric layer adjacent to each portion of the second epitaxial layer in each of the one or more second trenches.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 93.0
- Lexical Diversity: 2.0137
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14693208', '15062237', '15849916', '15900479', '15387933']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9258512857467744
- 35 USC 102 Novelty (BERT): 0.5491408670753402
- Combined Prediction Score: 0.8881802438796311
- Mean Citation Score: 333.852706
- Max Citation Score: 408.28693
- Similarity Product: 360.0882526932698

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