PATENT CLAIM ANALYSIS

Application Number: 15949281
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["257", "330000"]

Abstract:
A semiconductor device with enhanced reliability in which a gate electrode for a trench-gate field effect transistor is formed through a gate insulating film in a trench made in a semiconductor substrate. The upper surface of the gate electrode is in a lower position than the upper surface of the semiconductor substrate in an area adjacent to the trench. A sidewall insulating film is formed over the gate electrode and over the sidewall of the trench. The gate electrode and the sidewall insulating film are covered by an insulating film as an interlayer insulating film.

Claim (Index 21):
A semiconductor device having a trench-gate field effect transistor formed in a semiconductor substrate, comprising:\n a trench made in the semiconductor substrate; a gate electrode for the trench-gate field effect transistor, formed in the trench through a gate insulating film; a diode device formed through a first insulating film over the semiconductor substrate; and an interlayer insulating film formed over a main surface of the semiconductor substrate, wherein an upper surface of the gate electrode is in a lower position than an upper surface of the semiconductor substrate in an area adjacent to the trench, wherein a sidewall insulating film is formed over the gate electrode and over a sidewall of the trench, wherein the gate electrode and the sidewall insulating film are covered by the interlayer insulating film, and wherein the sidewall insulating film is formed from an insulating film in the same layer as the first insulating film.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 91.0
- Lexical Diversity: 2.2
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15338539', '14802132', '14804305', '15181024', '15785027']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.926214702234248
- 35 USC 102 Novelty (BERT): 0.5279516911338142
- Combined Prediction Score: 0.8863884011242047
- Mean Citation Score: 307.976942
- Max Citation Score: 360.1995
- Similarity Product: 312.3687052794099

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

Dataset: test