PATENT CLAIM ANALYSIS

Application Number: 15918434
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["257", "077000"]

Abstract:
A SiC epitaxial wafer includes: a substrate having an off angle of less than 4 degrees; and a SiC epitaxial growth layer disposed on the substrate having the off angle of less than 4 degrees, wherein an Si compound is used for a supply source of Si, and a C compound is used as a supply source of C, for the SiC epitaxial growth layer, wherein the uniformity of carrier density is less than 10%, and the defect density is less than 1 count/cm 2 ; and a C/Si ratio of the Si compound and the C (carbon) compound is within a range of 0.7 to 0.95. There is provide a high-quality SiC epitaxial wafer excellent in film thickness uniformity and uniformity of carrier density, having the small number of surface defects, and capable of reducing costs, also in low-off angle SiC substrates on SiC epitaxial growth.

Claim (Index 16):
The manufacturing apparatus according to  claim 11 , wherein\n the reactor comprises a vertical-type reactor, wherein a plurality pieces of the SiC epitaxial wafers can be disposed so as to be parallel to the flow of the gas, in the vertical-type reactor.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 90.0
- Lexical Diversity: 2.25
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12402551', '14762652', '13696943', '14557993', '15260152']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9338976819276986
- 35 USC 102 Novelty (BERT): 0.526396396458028
- Combined Prediction Score: 0.8931475533807315
- Mean Citation Score: 303.00652
- Max Citation Score: 323.9498
- Similarity Product: 187.94894049415583

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