PATENT CLAIM ANALYSIS

Application Number: 15935945
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["438", "105000"]

Abstract:
A method for producing a semiconductor power device includes forming a gate trench from a surface of the semiconductor layer toward an inside thereof. A first insulation film is formed on the inner surface of the gate trench. The method also includes removing a part on a bottom surface of the gate trench in the first insulation film. A second insulation film having a dielectric constant higher than SiO2 is formed in such a way as to cover the bottom surface of the gate trench exposed by removing the first insulation film.

Claim (Index 1):
A semiconductor device, comprising:\n a semiconductor substrate; a gate trench formed at the semiconductor substrate; a gate insulating film formed along a side of the gate trench and a bottom surface of the gate trench, and partly covering a surface of the semiconductor substrate; a gate electrode formed so as to be buried in the gate trench; an interlayer insulating film formed so as to cover the gate electrode and the gate insulating film; an intermediate stacked portion formed astride the semiconductor substrate and the interlayer insulating film; and a metal layer formed on or over the intermediate stacked portion.

Metadata:
- Claim Count in Document: 26.0
- Percentile: 90.0
- Lexical Diversity: 1.95918
- Patent Class: 438.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13983206', '15257991', '15214792', '14919699', '13983157']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8899404425522865
- 35 USC 102 Novelty (BERT): 0.5670025628916583
- Combined Prediction Score: 0.8576466545862238
- Mean Citation Score: 392.964314
- Max Citation Score: 467.23624
- Similarity Product: 388.4175060793496

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

Dataset: test