PATENT CLAIM ANALYSIS

Application Number: 15878038
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-06
Patent Classification: ["257", "077000"]

Abstract:
The semiconductor device includes: a semiconductor layer in which a trench is formed having a side surface and a bottom surface; a second conductivity-type layer formed on the semiconductor layer on the side surface and the bottom surface of the trench; a first conductivity-type layer formed on the semiconductor layer so as to contact the second conductivity-type layer; a first electrode electrically connected to the first conductivity-type layer; a second electrode embedded in the trench and electrically connected to the second conductivity-type layer; and a barrier-forming layer which is arranged between the second electrode and the side surface of the trench and which, between said barrier-forming layer and the second conductivity-type layer, forms a potential barrier higher than the potential barrier between the second conductivity-type layer and the second electrode.

Claim (Index 28):
A semiconductor device comprising:\n a semiconductor layer in which a gate trench having a side surface and a bottom surface and a source trench having a side surface and a bottom surface are formed; a first conductivity type source layer that is disposed so as to be exposed on a surface of the semiconductor layer and that defines the side surface of the gate trench and the side surface of the source trench; a second conductivity type channel layer that is disposed so as to be contiguous to the source layer on a back surface side of the semiconductor layer with respect to the source layer and that defines a part of the side surface of the gate trench and a part of the side surface of the source trench; a first conductivity type drain layer that is disposed so as to be contiguous to the channel layer on the back surface side of the semiconductor layer with respect to the channel layer and that defines the bottom surface of the gate trench and the bottom surface of the source trench; a gate electrode that is embedded in the gate trench; a gate insulating film disposed between the side and bottom surfaces of the gate trench and the gate electrode; a source electrode that is embedded in the source trench and that is electrically connected to the source layer; and a hetero junction diode formed at a joint surface between the source electrode and the drain layer.

Metadata:
- Claim Count in Document: 47.0
- Percentile: 86.0
- Lexical Diversity: 3.23256
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14423034', '15155885', '15214792', '14919699', '15226913']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9257564689123944
- 35 USC 102 Novelty (BERT): 0.5411075118324078
- Combined Prediction Score: 0.8872915732043958
- Mean Citation Score: 313.407526
- Max Citation Score: 389.10458
- Similarity Product: 386.397836680808

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