PATENT CLAIM ANALYSIS

Application Number: 15963698
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["257", "077000"]

Abstract:
The SiC-IGBT includes a p-type collector layer, an n − -type voltage-blocking-layer provided on the collector layer, p-type base regions provided on the n − -type voltage-blocking-layer, n + -type emitter regions provided in an upper portion of the p-type base region, a gate insulating film provided in an upper portion of the voltage-blocking-layer, and a gate electrode provided on the gate insulating film. The p-type buffer layer has thickness of five micrometers or more and  20  micrometers or less and is doped with Al at impurity concentration of 5×10 17  cm −3  or more and 5×10 18  cm −3  or less and doped with B at impurity concentration of 2×10 16  cm −3  or more and less than 5×10 17  cm −3 .

Claim (Index 9):
The silicon carbide epitaxial wafer according to  claim 8 ,\n wherein the thickness of the voltage-blocking-layer is 100 micrometers or more.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 91.0
- Lexical Diversity: 2.32143
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15712644', '12556870', '11132355', '13613858', '11857037']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9309109529685892
- 35 USC 102 Novelty (BERT): 0.5301224559425413
- Combined Prediction Score: 0.8908321032659843
- Mean Citation Score: 286.2476319999999
- Max Citation Score: 358.01254
- Similarity Product: 271.0777496698976

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