PATENT CLAIM ANALYSIS

Application Number: 16050794
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["257", "077000"]

Abstract:
A semiconductor device includes a semiconductor layer made of a wide bandgap semiconductor and including a gate trench; a gate insulating film formed on the gate trench; and a gate electrode embedded in the gate trench to be opposed to the semiconductor layer through the gate insulating film. The semiconductor layer includes a first conductivity type source region; a second conductivity type body region; a first conductivity type drift region; a second conductivity type first breakdown voltage holding region; a source trench passing through the first conductivity type source region and the second conductivity type body region from the front surface and reaching a drain region; and a second conductivity type second breakdown voltage region selectively formed on an edge portion of the source trench where the sidewall and the bottom wall thereof intersect with each other in a parallel region of the source trench.

Claim (Index 1):
A semiconductor device, comprising:\n a first semiconductor layer including an SiC and having a first surface and a second surface facing an opposite side of the first surface, a first concave portion and a second concave portion formed at a first surface side of the first semiconductor layer such that the first concave portion and the second concave portion are spaced apart from each other; a first insulating layer formed in the first concave portion; a first conductive layer in contact with the first insulating layer and spaced apart from the first semiconductor layer in the first concave portion; a second insulating layer formed above the first conductive layer; a second conductive layer formed over from a region on the second insulating layer to an inside of the second concave portion; a first impurity region of a first conductivity type in contact with the first insulating layer and a bottom portion of the second concave portion; and a second impurity region of a second conductivity type opposite to a type of the first conductivity type formed between the second insulating layer and the first impurity region.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 95.0
- Lexical Diversity: 2.56667
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15441850', '13983051', '14821056', '14919699', '13983157']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9415810802406176
- 35 USC 102 Novelty (BERT): 0.5636352335481929
- Combined Prediction Score: 0.9037864955713752
- Mean Citation Score: 432.243314
- Max Citation Score: 475.74527
- Similarity Product: 363.3730864913576

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