PATENT CLAIM ANALYSIS

Application Number: 16028146
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-02
Patent Classification: ["257", "341000"]

Abstract:
A semiconductor device includes a semiconductor substrate, a gate electrode, and a first contact plug. The semiconductor substrate includes a first surface and a second surface. Over the semiconductor substrate, a source region, a drain region, a drift region, and a body region are formed. A first trench in which the gate electrode is buried is formed in the first surface. The first surface includes an effective region and a peripheral region. The first trench extends from the peripheral region over the effective region along a first direction. The gate electrode includes a portion opposed to and insulated from the body region sandwiched between the source region and the drift region. In the peripheral region, the first contact plug is electrically coupled to the gate electrode buried in the first trench such that its longer side is along the first direction when seen in a plan view.

Claim (Index 10):
A method of manufacturing a semiconductor device, comprising the steps of:\n forming, in a semiconductor substrate including a first surface and a second surface being opposite to the first surface, a first trench in the first surface; forming, over the semiconductor substrate, a source region of a first conductivity type arranged in the first surface, a drain region of the first conductivity type arranged in the second surface, a drift region of the first conductivity type arranged in the drain region of the first surface side, and a body region of a second conductivity type opposite to the first conductivity type sandwiched between the source region and the drift region; forming a gate electrode; and forming a first contact plug, wherein the first surface includes an effective region in which the source region is arranged and a peripheral region which surrounds the effective region, wherein the first trench extends from the peripheral region over the effective region along a first direction from the peripheral region toward the effective region when seen in a plan view, wherein the gate electrode includes a portion which is buried in the first trench and which is opposed to and insulated from the body region sandwiched between the source region and the drift region, and wherein the first contact plug is electrically coupled to the gate electrode buried in the first trench in the peripheral region such that its longer side is along the first direction when seen in a plan view.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 95.0
- Lexical Diversity: 2.84211
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15956611', '15723662', '15401095', '15845628', '15810011']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9252999100392298
- 35 USC 102 Novelty (BERT): 0.5025909077294985
- Combined Prediction Score: 0.8830290098082567
- Mean Citation Score: 283.42085400000013
- Max Citation Score: 301.01852
- Similarity Product: 271.14601471245527

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

Dataset: test