PATENT CLAIM ANALYSIS

Application Number: 16065257
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-01
Patent Classification: ["134", "022100"]

Abstract:
A method of cleaning a SiC monocrystal growth furnace provided with an in-furnace substrate composed of a 3C-SiC polycrystal having at least a surface in which an intensity ratio of a (111) plane with respect to other crystal planes is at least 85% but not more than 100% according to powder XRD analysis, the method including flowing a mixed gas of fluorine gas and at least one of an inert gas and air in a non-plasma state through the inside of the SiC monocrystal growth furnace, thereby selectively removing a SiC deposit deposited inside the SiC monocrystal growth furnace, wherein the mixed gas comprises at least 1 vol % but not more than 20 vol % of fluorine gas, and at least 80 vol % but not more than 99 vol % of an inert gas, and a temperature inside the SiC monocrystal growth furnace is from 200° C. to 500° C.

Claim (Index 1):
A method of cleaning a SiC monocrystal growth furnace by using a gas to clean a SiC monocrystal growth furnace provided with an in-furnace substrate composed of a 3C\u2014SiC polycrystal having at least a surface in which an intensity ratio of a (111) plane with respect to other crystal planes is at least 85% but not more than 100% according to powder XRD analysis, the method comprising:\n flowing a mixed gas of fluorine gas and at least one of an inert gas and air in a non-plasma state through an inside of the SiC monocrystal growth furnace, thereby selectively removing a SiC deposit deposited inside the SiC monocrystal growth furnace, wherein the mixed gas comprises at least 1 vol % but not more than 20 vol % of fluorine gas, and at least 80 vol % but not more than 99 vol % of an inert gas, and a temperature inside the SiC monocrystal growth furnace is at least 200\u00b0 C. but not more than 500\u00b0 C.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 94.0
- Lexical Diversity: 2.025
- Patent Class: 134.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14407397', '14213888', '15091421', '15587258', '13033767']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8286935539644397
- 35 USC 102 Novelty (BERT): 0.4954313820859224
- Combined Prediction Score: 0.795367336776588
- Mean Citation Score: 191.55112
- Max Citation Score: 211.89296
- Similarity Product: 137.27849927947997

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