PATENT CLAIM ANALYSIS

Application Number: 15762147
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["257", "077000"]

Abstract:
A silicon carbide epitaxial substrate has a silicon carbide single-crystal substrate and a silicon carbide layer. An average value of carrier concentration in the silicon carbide layer is not less than 1×10 15  cm −3  and not more than 5×10 16  cm −3 . In-plane uniformity of the carrier concentration is not more than 2%. The second main surface has: a groove  80  extending in one direction along the second main surface, a width of the groove in the one direction being twice or more as large as a width thereof in a direction perpendicular to the one direction, and a maximum depth of the groove from the second main surface being not more than 10 nm; and a carrot defect. A value obtained by dividing a number of the carrot defects by a number of the grooves is not more than 1/500.

Claim (Index 2):
The silicon carbide epitaxial substrate according to  claim 1 , wherein\n the groove includes a first groove portion and a second groove portion provided continuously with the first groove portion, the first groove portion is at one end portion of the groove in the one direction, and the second groove portion extends from the first groove portion along the one direction to the other end portion opposite to the one end portion, and has a depth from the second main surface which is smaller than a maximum depth of the first groove portion.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 90.0
- Lexical Diversity: 2.17143
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15750606', '15567443', '15319130', '15772183', '14786063']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9259141367389988
- 35 USC 102 Novelty (BERT): 0.4831245029968868
- Combined Prediction Score: 0.8816351733647876
- Mean Citation Score: 222.512192
- Max Citation Score: 230.94504
- Similarity Product: 192.68074631654264

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

Dataset: test