PATENT CLAIM ANALYSIS

Application Number: 16118946
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-06
Patent Classification: ["252", "079100"]

Abstract:
The present invention relates to a polishing liquid for CMP and preparation method thereof. 100 parts by weight of the polishing liquid comprises: 0.1 to 50 parts of abrasive, 0.001 to 0.4 part of surfactant, 0.001 to 0.6 part of film former, and 0.05 to 10 parts of pH regulator, and 0.01 to 4 parts of polishing accelerator, and deionized water in balance; and the pH value of the polishing liquid is 9.5 to 12.5. When a GaAs wafer is polished with the polishing liquid of the present invention, various performance indexes such as polishing removal rate, surface roughness and TTV of the polished wafer are excellent, and the polishing liquid is easy to be washed away, does not corrode equipment, and does not introduce harmful metal ions. The polishing liquid of the present invention can be used continuously and circularly for a long period of 6 to 10 hours, which greatly saves resources and reduces the use cost of the polishing liquid. Furthermore, the steps and operations of the method of the present application are simple and can make each raw material fully play its function.

Claim (Index 1):
A polishing liquid for CMP, characterized in that, 100 parts by weight of the polishing liquid comprises: 0.1 to 50 parts of abrasive, 0.001 to 0.4 part of surfactant, 0.001 to 0.6 part of film former, and 0.05 to 10 parts of pH regulator, and 0.01 to 4 parts of polishing accelerator, and deionized water in balance; and the pH value of the polishing liquid is 9.5 to 12.5.

Metadata:
- Claim Count in Document: 44.0
- Percentile: 96.0
- Lexical Diversity: 1.92523
- Patent Class: 252.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12399984', '10012313', '13519809', '15129326', '14440208']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8228488134785731
- 35 USC 102 Novelty (BERT): 0.4873883835234135
- Combined Prediction Score: 0.7893027704830572
- Mean Citation Score: 209.689624
- Max Citation Score: 212.60382
- Similarity Product: 149.23693754401447

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

Dataset: test