PATENT CLAIM ANALYSIS

Application Number: 15752985
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["117", "088000"]

Abstract:
In forming of a silicon carbide layer, when an X axis indicates a first value representing, in percentage, a value obtained by dividing a flow rate of silane by a flow rate of hydrogen and a Y axis indicates a second value representing a flow rate of ammonia in sccm, the first value and the second value fall within a quadrangular region surrounded by first coordinates, second coordinates, third coordinates, and fourth coordinates in XY plane coordinates. The first coordinates are (0.05, 6.5×10 −4 ). The second coordinates are (0.05, 4.5×10 −3 ). The third coordinates are (0.22, 1.2×10 −2 ). The fourth coordinates are (0.22, 1.3×10 −1 ). After the forming of the silicon carbide layer, an average value of carrier concentration of the silicon carbide layer is more than or equal to 1×10 15  cm −3  and less than or equal to 2×10 16  cm −3 .

Claim (Index 2):
The method for manufacturing the silicon carbide epitaxial substrate according to  claim 1 , wherein\n the reaction chamber includes a first heating region above the silicon carbide single crystal substrate and a second heating region located upstream of the first heating region, and in the forming of the silicon carbide layer, the second heating region has a temperature more than or equal to a decomposition temperature of the ammonia.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 88.0
- Lexical Diversity: 2.36111
- Patent Class: 117.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15743950', '15319130', '15762147', '14778271', '15750606']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7772947701171589
- 35 USC 102 Novelty (BERT): 0.5091559896648878
- Combined Prediction Score: 0.7504808920719318
- Mean Citation Score: 238.372996
- Max Citation Score: 287.76242
- Similarity Product: 219.01420953435425

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

Dataset: test