PATENT CLAIM ANALYSIS

Application Number: 15770360
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["423", "350000"]

Abstract:
A method for manufacturing polysilicon, according to the present invention, is capable of manufacturing polysilicon with high purity more efficiently in such a manner that a high-temperature and high-speed air stream is formed at the center of a reaction tube, and a high-temperature region may be formed by a vortex formed by the high-temperature and high-speed air stream, so that a raw gas supplied from the side wall of the reaction tube flows by the guiding of the vortex, thereby increasing a stay time and a reaction time of the raw gas within the reaction tube. Furthermore, since the inner wall of the reaction tube is provided with a heat release means, the rapid cooling of a silicon crystal deposited on the inner wall of the reaction tube can induce a columnar crystal in which the silicon crystal is solidified in a direction perpendicular to a crystal face, and it is easy to desorb the silicon crystal produced by rapid heat release via the inner wall of the reaction tube.

Claim (Index 1):
A method for manufacturing polysilicon, comprising:\n forming a high-temperature and high-speed air stream at the center of the reaction tube and forming a vortex around the high-temperature and high-speed air stream; supplying a raw gas containing a chlorosilane gas and a reducing gas from the side of the reaction tube to be guided by the vortex to flow; forming a silicon fine powder by a reaction of the raw gas guided by the vortex; and precipitating silicon crystal by the silicon fine powder and the raw gas guided by the vortex being transferred to the inner wall of the reaction tube and being adsorbed and reacted.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 91.0
- Lexical Diversity: 2.25
- Patent Class: 423.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15714001', '14785150', '13055766', '15310716', '10569149']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7750908140266222
- 35 USC 102 Novelty (BERT): 0.4804153823696599
- Combined Prediction Score: 0.745623270860926
- Mean Citation Score: 199.828788
- Max Citation Score: 207.01038
- Similarity Product: 159.388894970609

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