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 5):
The semiconductor device according to  claim 2 , further comprising a first silicon carbide semiconductor region of the second conductivity type provided on the surface of the second silicon carbide semiconductor layer and having an impurity concentration that is being higher than that of the second silicon carbide semiconductor layer,\n wherein the third silicon carbide semiconductor layer is provided on a first side of the first silicon carbide semiconductor region opposite a second side of the first silicon carbide semiconductor region, the second side facing the second silicon carbide semiconductor layer, wherein the first semiconductor region is provided in the second silicon carbide semiconductor layer, closer to the first silicon carbide semiconductor layer than is an interface of the second silicon carbide semiconductor layer and the first silicon carbide semiconductor region, and the third semiconductor region is provided in the first silicon carbide semiconductor region.

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): 0.9328160907260292
- 35 USC 102 Novelty (BERT): 0.5441572934579757
- Combined Prediction Score: 0.8939502109992239
- Mean Citation Score: 359.8348180000001
- Max Citation Score: 403.44516
- Similarity Product: 346.2785560930967

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