PATENT CLAIM ANALYSIS

Application Number: 15911740
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-10
Patent Classification: ["257", "077000"]

Abstract:
A trench gate structure vertical MOSFET includes a silicon carbide substrate of a first conductivity type, a first semiconductor layer of the first conductivity type, a second semiconductor layer of a second conductivity type, first semiconductor regions of the first conductivity type, a trench, a gate electrode, an interlayer insulating film, a barrier layer, a contact electrode, a first electrode, and a second electrode. The barrier layer includes a layer made of TiN, and the thickness of the TiN layer is 10 to 80 nm. The interlayer insulating film is a laminate film of non-doped silicate glass and borophosphosilicate glass.

Claim (Index 7):
The silicon carbide semiconductor device according to  claim 1 , wherein the contact electrode contacts the second semiconductor layer through a contact region of the second conductivity type selectively that is formed in the top surface of the second semiconductor layer, an impurity concentration of the contact region being higher than an impurity concentration of the second semiconductor layer.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 90.0
- Lexical Diversity: 2.59091
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15468819', '15609487', '15421603', '15686662', '15846075']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9326619728328944
- 35 USC 102 Novelty (BERT): 0.5026124470961016
- Combined Prediction Score: 0.8896570202592151
- Mean Citation Score: 279.131252
- Max Citation Score: 293.4741
- Similarity Product: 260.0958697971225

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