1. Miyashita, M.; Kujime, T.; Nii, K.; Hasebe, R.; Ishimaru, A. Fine Processing Agent and Fine Processing Method Using the Same. JP Patent JP5400528B. January 29, 2014.
2. Miyashita, M.; Kujime, T.; Nii, K. Fine Processing Agent and Fine Processing Method. JP Patent JP5401647B. January 29, 2014.
3. Seki, K.; Goto, T. Cleaning Solution and Method for Cleaning Substrate. US Patent US10920179B2. February, 16, 2021.
4. Selective Wet Etching of Si3N4/SiO2 in Phosphoric Acid with the Addition of Fluoride and Silicic Compounds;Seo,2014
5. Kinetic Effect of Additives in High Temperature Phosphoric Acid on the Etching of Si3N4/SiO2;Park,2019