PATENT CLAIM ANALYSIS

Application Number: 16004748
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-02
Patent Classification: ["257", "565000"]

Abstract:
A semiconductor substrate includes a first-conductivity drift layer, a first-conductivity first impurity layer, a second-conductivity base layer, and a first-conductivity first emitter region. The first impurity layer is provided on the drift layer, and has impurity concentration higher than impurity concentration of the drift layer. The base layer is provided on the first impurity layer. The first emitter region is provided on the base layer. The first impurity layer connects between trenches. The plurality of trenches are formed in the semiconductor substrate covered by a gate insulation film. The gate insulation film has a first thickness between a gate electrode and the drift layer in a side wall surface, and has a second thickness between the gate electrode and the drift layer in a bottom surface. The second thickness is larger than the first thickness.

Claim (Index 2):
The semiconductor device according to  claim 1 , wherein\n a depth of an interface of the gate insulation film and the gate electrode is larger than a depth of an interface of the drift layer and the first impurity layer, and a depth of the bottom surface of the plurality of trenches is larger than the depth of the interface of the drift layer and the first impurity layer, and is smaller than a depth of an interface of the drift layer and the second impurity layer.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 94.0
- Lexical Diversity: 3.14894
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12171041', '15105664', '15544898', '15740573', '13225648']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9225645252354958
- 35 USC 102 Novelty (BERT): 0.5205320925674861
- Combined Prediction Score: 0.8823612819686949
- Mean Citation Score: 297.510846
- Max Citation Score: 314.38803
- Similarity Product: 260.8370276317906

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