PATENT CLAIM ANALYSIS

Application Number: 16285580
Application Type: Utility
Filing Date: 2019-02
Publication Date: 2019-06
Patent Classification: ["438", "693000"]

Abstract:
There is provided a polishing method capable of more reducing defects on a silicon wafer surface. A polishing method of a silicon wafer, which includes a polishing step and a surface treatment step conducted after the polishing step and in which the number of abrasives in a surface treatment composition used in the surface treatment step is 1.0×10 10  particles/mL or more and 1.0×10 13  particles/mL or less by calculating from (1 [mL]×specific gravity of the composition [g/mL]×concentration of the abrasives [wt %])/((4/3)π×(average secondary particle diameter×10 −7  [cm]/2) 3  [/particle]×specific gravity of the abrasives [g/cm 3 ]), using concentration of the abrasives in the surface treatment composition and an average secondary particle diameter measured by dynamic light scattering method, provided that all of the abrasives in the surface treatment composition used in the surface treatment step are assumed to have the average secondary particle diameter.

Claim (Index 11):
The polishing method of the silicon wafer according to  claim 8 , wherein, a value obtained by dividing the concentration of the abrasives in the surface treatment composition used in the surface treatment step by the concentration of the abrasives in the polishing composition is 0.00001 or more and 0.5 or less.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 99.0
- Lexical Diversity: 2.24051
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15551267', '15769889', '15309281', '15519578', '14910803']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8727666461389765
- 35 USC 102 Novelty (BERT): 0.5032419297618245
- Combined Prediction Score: 0.8358141745012613
- Mean Citation Score: 226.546674
- Max Citation Score: 270.17206
- Similarity Product: 208.53177036402585

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