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 16):
A semiconductor device, comprising:\n a semiconductor layer having a first surface and a second surface which faces the first surface; a first electrode contacting the first surface; a second electrode contacting the second surface; a plurality of trenches in the semiconductor layer and extending longitudinally in a first direction substantially parallel to the first surface; a gate electrode in each trench of the plurality of trenches; a field plate electrode in each trench of the plurality of trenches and between the gate electrode and the second surface; an insulating layer in each trench of the plurality of trenches and including:\n a first portion having a first film thickness between the gate electrode and the semiconductor layer, \n a second portion between the field plate electrode and the semiconductor layer and having a second film thickness thicker than the first film thickness, \n a third portion between the second portion and the second surface and having a third film thickness thicker than the second film thickness, and \n a fourth portion between an end portion of the field plate electrode and the semiconductor layer and having a fourth film thickness thicker than the second film thickness; \n a first semiconductor region of the semiconductor layer having a first conductivity type and between two adjacent trenches of the plurality of trenches; a second semiconductor region of the semiconductor layer having a second conductivity type and between the first semiconductor region and the second surface; and a third semiconductor region of the semiconductor layer having the second conductivity type and between the first semiconductor region and the first electrode, the third semiconductor region being 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): 0.9016848828192796
- 35 USC 102 Novelty (BERT): 0.4824093830464637
- Combined Prediction Score: 0.8597573328419981
- Mean Citation Score: 220.559198
- Max Citation Score: 231.33203
- Similarity Product: 205.0225661927545

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