PATENT CLAIM ANALYSIS

Application Number: 15918387
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-03
Patent Classification: ["257", "331000"]

Abstract:
A semiconductor device includes a drain layer, a drift layer, a base region, a source region, trenches, base contact region, gate regions, and field plate electrodes. The drain layer extends in a first and a second direction. The drift layer is on the drain layer. The base region is on the drift layer. The source region is on the base region. The trenches are in an array and each trench reaches the drift layer from the source region. The base contact region is along the second direction in a region in which the trenches do not contiguously exist along the second direction and electrically connects the source region to the base region. Each gate regions is along an inner wall of the trenches. Each field plate electrodes is in an inside of the gate regions and is longer than the gate regions in the third direction.

Claim (Index 18):
A semiconductor device comprising:\n a drain layer of a first conductivity type extending in a first direction and a second direction crossing the first direction; a drift layer of the first conductivity type formed on a surface that is one surface in a third direction crossing the first direction and the second direction of the drain layer; a base region of a second conductivity type formed on a surface of the drift layer; a source region of the first conductivity type formed on a surface of the base region; a trench formed independently to be separated from other regions in the first direction and the second direction, the other regions being the drift layer, the base region, and the source region, the trench reaching the drift layer through the base region along the third direction from a surface of the source region; a gate region formed along an inner wall of the trench, via the inner wall and an insulating film, inside the trench; and a field plate electrode formed in an adjacent form the gate region, via the insulating film, inside the trench along the third direction, and formed longer than the gate region in the third direction.

Metadata:
- Claim Count in Document: 28.0
- Percentile: 90.0
- Lexical Diversity: 3.0
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13053069', '15916447', '14762967', '13205845', '12385715']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9088182708463222
- 35 USC 102 Novelty (BERT): 0.4558803180502735
- Combined Prediction Score: 0.8635244755667173
- Mean Citation Score: 155.19901000000004
- Max Citation Score: 157.80301
- Similarity Product: 130.21984670033694

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