PATENT CLAIM ANALYSIS

Application Number: 16210247
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-04
Patent Classification: ["257", "334000"]

Abstract:
A wide band gap semiconductor device includes a semiconductor layer, a trench formed in the semiconductor layer, first, second, and third regions having particular conductivity types and defining sides of the trench, and a first electrode embedded inside an insulating film in the trench. The second region integrally includes a first portion arranged closer to a first surface of the semiconductor layer than to a bottom surface of the trench, and a second portion projecting from the first portion toward a second surface of the semiconductor layer to a depth below a bottom surface of the trench. The second portion of the second region defines a boundary surface with the third region, the boundary region being at an incline with respect to the first surface of the semiconductor layer.

Claim (Index 1):
A wide band gap semiconductor device comprising:\n a semiconductor layer having a first surface and a second surface; a trench formed on the first surface of the semiconductor layer; a first region of a first conductivity type formed at a first surface of the semiconductor layer, the first region forming part of a side surface of the trench; a second region of a second conductivity type formed on a side of the first region facing the second surface of the semiconductor layer, the second region forming part of the side surface of the trench; a third region of the first conductivity type formed on a side of the second region facing the second surface of the semiconductor layer, the third region forming a bottom surface of the trench; an insulating film formed on an inner surface of the trench; and a first electrode embedded inside the insulating film in the trench, wherein the second region integrally includes a first portion arranged closer to the first surface of the semiconductor layer than to the bottom surface of the trench, and a second portion projecting from the first portion toward the second surface of the semiconductor layer to a depth below the bottom surface of the trench, and the second portion of the second region defines a boundary surface with the third region, the boundary region being at an incline with respect to the first surface of the semiconductor layer.

Metadata:
- Claim Count in Document: 62.0
- Percentile: 98.0
- Lexical Diversity: 2.52727
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15880631', '15336985', '14800992', '13590665', '14147614']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9236869444930748
- 35 USC 102 Novelty (BERT): 0.5430863301758119
- Combined Prediction Score: 0.8856268830613484
- Mean Citation Score: 372.856506
- Max Citation Score: 382.75168
- Similarity Product: 347.1691902690316

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