PATENT CLAIM ANALYSIS

Application Number: 15993671
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-12
Patent Classification: ["257", "077000"]

Abstract:
At a front surface of a silicon carbide base, an n − -type drift layer, a p-type base layer, a first n + -type source region, a second n + -type source region, and a trench that penetrates the first and the second n + -type source regions and the p-type base layer and reaches the n-type region are provided. In the trench, the gate electrode is provided via a gate insulating film, an interlayer insulating film is provided on the gate electrode, and a barrier metal is provided on the interlayer insulating film.

Claim (Index 1):
A semiconductor device, comprising:\n a semiconductor substrate of a first semiconductor type; a first semiconductor layer of the first semiconductor type provided on a front surface of the semiconductor substrate; a second semiconductor layer of a second semiconductor type provided on a first side of the first semiconductor layer opposite a second side of the first semiconductor layer, the second side facing toward the semiconductor substrate; a first semiconductor region of the first semiconductor type selectively provided in the second semiconductor layer and having an impurity concentration that is higher than that of the semiconductor substrate; a trench penetrating the first semiconductor region and the second semiconductor layer, and reaching the first semiconductor layer; a gate insulating film provided in the trench; a gate electrode provided in the trench on the gate insulating film; an interlayer insulating film provided on the gate electrode in the trench; a barrier metal provided on the interlayer insulating film in the trench; a first electrode in contact with the first semiconductor region, the second semiconductor layer, and the barrier metal; and a second electrode provided at a rear surface of the semiconductor substrate.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 93.0
- Lexical Diversity: 2.4186
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15993336', '15846075', '15943696', '15988764', '15854540']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9312411291341808
- 35 USC 102 Novelty (BERT): 0.5202538935716764
- Combined Prediction Score: 0.8901424055779303
- Mean Citation Score: 333.214582
- Max Citation Score: 343.8509
- Similarity Product: 307.66618761231314

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