PATENT CLAIM ANALYSIS

Application Number: 15926361
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-03
Patent Classification: ["257", "330000"]

Abstract:
A semiconductor device according to an embodiment includes a semiconductor layer having a first and a second plane; emitter and collector electrode; a trench gate electrode extending in a first direction substantially parallel to the first plane; a dummy trench gate electrode extending in the first direction; a p base region; an emitter region; an n base region; a collector region; a trench gate insulating film; a dummy trench gate electrode; a dummy trench gate insulating film; a first gate pad electrode connected to the trench gate electrode and the dummy trench gate electrode; a first electric resistor connected between the first gate pad electrode and the trench gate electrode, and a second electric resistor connected between the first gate pad electrode and the dummy trench gate electrode. A CR time constant of the trench gate electrode is less than a CR time constant of the dummy trench gate electrode.

Claim (Index 7):
A semiconductor device comprising:\n a semiconductor layer having a first plane and a second plane opposite to the first plane; a first emitter electrode, at least a portion of the first emitter electrode being in contact with the first plane; a first collector electrode, at least a portion of the first collector electrode being in contact with the second plane; a first trench gate electrode provided in the semiconductor layer, the first trench gate electrode extending in a first direction substantially parallel to the first plane; a first dummy trench gate electrode provided in the semiconductor layer, the first dummy trench gate electrode extending in the first direction; a first p base region provided in the semiconductor layer; an n-type first emitter region provided between the first p base region and the first plane in the semiconductor layer, the n-type first emitter region being electrically connected to the first emitter electrode; a first n base region provided between the first p base region and the second plane in the semiconductor layer; a p-type first collector region provided between the first n base region and the second plane in the semiconductor layer, the p-type first collector region being electrically connected to the first collector electrode; a first trench gate insulating film provided between the first trench gate electrode and the first p base region, between the first trench gate electrode and the first emitter region, and between the first trench gate electrode and the first n base region, the first trench gate insulating film being in contact with the first p base region, the first emitter region, and the first n base region; a first dummy trench gate insulating film provided between the first dummy trench gate electrode and the first p base region and between the first dummy trench gate electrode and the first n base region, the first dummy trench gate insulating film being in contact with the first p base region and the first n base region; a second emitter electrode, at least a portion of the second emitter electrode being in contact with the first plane; a second collector electrode, at least a portion of the second collector electrode being in contact with the second plane; a second trench gate electrode provided in the semiconductor layer, the second trench gate electrode extending in the first direction; a second dummy trench gate electrode provided in the semiconductor layer, the second dummy trench gate electrode extending in the first direction; a second p base region provided in the semiconductor layer; an n-type second emitter region provided between the second p base region and the first plane in the semiconductor layer, the n-type second emitter region being electrically connected to the second emitter electrode; a second n base region provided between the second p base region and the second plane in the semiconductor layer; a p-type second collector region provided between the second n base region and the second plane in the semiconductor layer, the p-type second collector region being electrically connected to the second collector electrode; a second trench gate insulating film provided between the second trench gate electrode and the second p base region, between the second trench gate electrode and the second emitter region, and between the second trench gate electrode and the second n base region, the second trench gate insulating film being in contact with the second p base region, the second emitter region, and the second n base region; a second dummy trench gate insulating film provided between the second dummy trench gate electrode and the second p base region and between the second dummy trench gate electrode and the second n base region, the second dummy trench gate insulating film being in contact with the second p base region and the second n base region; a gate pad electrode electrically connected to the first trench gate electrode, the first dummy trench gate electrode, the second trench gate electrode, and the second dummy trench gate electrode; a first electric resistor electrically connected between the gate pad electrode and the first trench gate electrode; a second electric resistor electrically connected between the gate pad electrode and the first dummy trench gate electrode, a third electric resistor electrically connected between the gate pad electrode and the second trench gate electrode; and a fourth electric resistor electrically connected between the gate pad electrode and the second dummy trench gate electrode, wherein a CR time constant of the first trench gate electrode is less than a CR time constant of the first dummy trench gate electrode, and a CR time constant of the second trench gate electrode is less than a CR time constant of the second dummy trench gate electrode.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 90.0
- Lexical Diversity: 3.4375
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15774109', '12320497', '12588310', '11221702', '10843571']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9119325885775916
- 35 USC 102 Novelty (BERT): 0.5113043267523164
- Combined Prediction Score: 0.8718697623950641
- Mean Citation Score: 280.687056
- Max Citation Score: 295.02408
- Similarity Product: 244.292267861538

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

Dataset: test