PATENT CLAIM ANALYSIS

Application Number: 15903955
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-03
Patent Classification: ["257", "334000"]

Abstract:
A semiconductor device which includes a semiconductor layer, a first electrode, a second electrode, first trenches, a second trench surrounding the first trenches, a gate electrode and a first field plate electrode in the first trenches, a first insulating layer including a first portion p having a first film thickness, a second portion having a second film thickness thicker than the first film thickness, and a third portion having a third film thickness thicker than the second film thickness, a second field plate electrode in the second trench, a second insulating layer in the second trench. The semiconductor layer includes a first semiconductor region having a first conductivity type, a second semiconductor region having a second conductivity type, and a third semiconductor region having the second conductivity type.

Claim (Index 1):
A semiconductor device, comprising:\n a semiconductor layer having a first surface and a second surface opposite the first surface; a first electrode contacting the first surface; a second electrode contacting the second surface; a plurality of first trenches in the semiconductor layer, each first trench extending longitudinally in a first direction that is substantially parallel to the first surface, spaced from an adjacent first trench in the plurality of first trenches in a second direction crossing the first direction and substantially parallel to the first direction, and extending into the semiconductor layer along a third direction substantially orthogonal to the first surface; a second trench in the semiconductor layer and surrounding the plurality of first trenches within a plane substantially parallel to the first surface; a first gate electrode in each first trench of the plurality of first trenches; a first field plate electrode in each first trench of the plurality of first trenches between the first gate electrode and the second surface in the third direction; a first insulating layer including:\n a first portion of a first film thickness in each first trench of the plurality of first trenches between the first gate electrode and the semiconductor layer, \n a second portion of a second film thickness in each first trench of the plurality of first trenches between the first field plate electrode and the semiconductor layer, the second film thickness being greater than the first film thickness, and \n a third portion of a third film thickness in each first trench of the plurality of first trenches between the second portion and the second surface, the third film thickness being greater than the second film thickness; \n a second field plate electrode in the second trench; a second insulating layer in the second trench between the second field plate electrode and the semiconductor layer; a first semiconductor region of the semiconductor layer having a first conductivity type and being between two adjacent first trenches of the plurality of first trenches; a second semiconductor region of the semiconductor layer having a second conductivity type and being between the first semiconductor region and the second surface along the third direction; and a third semiconductor region of the semiconductor layer having the second conductivity type, the third semiconductor region being between the first semiconductor region and the first electrode along the third direction and electrically connected to the first electrode.

Metadata:
- Claim Count in Document: 30.0
- Percentile: 88.0
- Lexical Diversity: 4.05714
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['11939050', '15250555', '11933869', '15005195', '14406991']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.901392761028763
- 35 USC 102 Novelty (BERT): 0.4859134832140612
- Combined Prediction Score: 0.8598448332472928
- Mean Citation Score: 220.559198
- Max Citation Score: 231.33203
- Similarity Product: 197.59295599635243

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