PATENT CLAIM ANALYSIS

Application Number: 16113542
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-04
Patent Classification: ["257", "077000"]

Abstract:
At bottom of a gate trench, a conductive layer is provided. A Schottky junction is formed along a side wall of the gate trench by the conductive layer and the n-type current spreading region. The Schottky junction constitutes one unit cell of a trench-type SBD. In the gate trench, a gate electrode is provided on the conductive layer, via an insulating layer. The gate electrode constitutes one unit cell of a trench-gate-type vertical MOSFET. In other words, one unit cell of the trench gate MOSFET and one unit cell of the trench-type SBD are disposed built into a single gate trench and oppose each other in a depth direction.

Claim (Index 1):
A semiconductor device comprising:\n a semiconductor substrate containing a semiconductor material having a bandgap that is wider than that of silicon; a first semiconductor layer of a first conductivity type provided on a front surface of the semiconductor substrate, the first semiconductor layer containing a semiconductor material having a bandgap that is wider than that of silicon; a second semiconductor layer of a second conductivity type provided on a first side of the first semiconductor layer, opposite a second side of the first semiconductor layer facing toward the semiconductor substrate, the second semiconductor layer containing a semiconductor material having a bandgap that is wider than that of silicon; a first semiconductor region of the first conductivity type selectively provided in the second semiconductor layer; a trench penetrating the first semiconductor region and the second semiconductor layer, and reaching the first semiconductor layer; a second semiconductor region underlying a bottom of the trench and selectively provided in the first semiconductor layer, separated from the second semiconductor layer; a conductive layer provided in the trench; an insulating layer provided on the conductive layer, in the trench; an insulating film provided along a side wall of the trench and in contact with and continuous with the insulating layer; a gate electrode provided on the insulating layer and the insulating film, in the trench; a first electrode in contact with the second semiconductor layer and the first semiconductor region; a second electrode provided at a rear surface of the semiconductor substrate; and a Schottky barrier diode constituted by a Schottky junction of the conductive layer and the first semiconductor layer.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 96.0
- Lexical Diversity: 2.2037
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15943696', '16113523', '15846040', '15397677', '15988764']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9239881018990058
- 35 USC 102 Novelty (BERT): 0.5026012129580151
- Combined Prediction Score: 0.8818494130049067
- Mean Citation Score: 272.10445
- Max Citation Score: 299.72046
- Similarity Product: 267.639010811584

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test