PATENT CLAIM ANALYSIS

Application Number: 15993708
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-12
Patent Classification: ["257", "330000"]

Abstract:
On a front surface of a semiconductor base, a first n − -type drift region and a second n-type drift region are provided. A gate trench is provided that penetrates an n + -type source region and p-type base region, and reaches the second n-type drift region. Between adjacent gate trenches, a contact trench is provided that penetrates the n + -type source region and the p-type base region, and reaches a p-type semiconductor region, through the second n-type drift region. A source electrode embedded in the contact trench is in contact with the p-type semiconductor region at a bottom and corners of the contact trench, and forms a Schottky junction with the second n-type drift region at side walls of the contact trench. A depth of the contact trench is a depth by which a mathematical area of a part thereof forming the Schottky junction is a predetermined mathematical area or greater.

Claim (Index 2):
The semiconductor device according to  claim 1  and further comprising a third semiconductor region of the second conductivity type selectively provided in the second silicon carbide semiconductor layer, the third semiconductor region opposing the gate electrode at the bottom and the corners of the first trench, across the gate insulating film.

Metadata:
- Claim Count in Document: 6.0
- Percentile: 93.0
- Lexical Diversity: 2.73333
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15841461', '15252623', '15846040', '15943696', '15988764']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9327817582518092
- 35 USC 102 Novelty (BERT): 0.5443445364576576
- Combined Prediction Score: 0.8939380360723939
- Mean Citation Score: 359.8348180000001
- Max Citation Score: 403.44516
- Similarity Product: 349.38641692521566

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