PATENT CLAIM ANALYSIS

Application Number: 16119246
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-04
Patent Classification: ["257", "077000"]

Abstract:
For example, a pin diode is constituted by a silicon carbide epitaxial substrate in which silicon carbide epitaxial layers constituting an n-type buffer region, an n − -type drift region, and a p ++ -type anode region are sequentially formed by epitaxial growth on a front surface of an n + -type silicon carbide substrate. The n − -type drift region has an n-type impurity concentration is, for example, about 1×10 14 /cm 3  to 1×10 16 /cm 3 . The n − -type drift region has a boron concentration that is substantially lower than an n-type impurity concentration of the n − -type drift region and that, for example, is about 1×10 14 /cm 3  or less. During epitaxial growth of the n − -type drift region, automatic doping of boron to the n − -type drift region is suppressed, whereby the boron concentration of the n − -type drift region is reduced and the n − -type drift region in which no traps are present is formed.

Claim (Index 3):
The silicon carbide semiconductor device according to  claim 1 , wherein\n the second semiconductor region, the first semiconductor region, and the semiconductor substrate constitute a diode included in a bipolar device.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 96.0
- Lexical Diversity: 2.66176
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15846075', '15903181', '15988764', '15841461', '15030763']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9281313474991236
- 35 USC 102 Novelty (BERT): 0.4921711760189674
- Combined Prediction Score: 0.8845353303511079
- Mean Citation Score: 239.504388
- Max Citation Score: 243.73979
- Similarity Product: 192.269152530644

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