WO2024201360 - DIAMOND-BASED POLISHING COMPOSITIONS WITH IMPROVED SILICON CARBIDE REMOVAL RATE

National phase entry is expected:
Publication Number WO/2024/201360
Publication Date 03.10.2024
International Application No. PCT/IB2024/053017
International Filing Date 28.03.2024
Title [English] DIAMOND-BASED POLISHING COMPOSITIONS WITH IMPROVED SILICON CARBIDE REMOVAL RATE [French] COMPOSITIONS DE POLISSAGE À BASE DE DIAMANT AYANT UN TAUX D'ÉLIMINATION DE CARBURE DE SILICIUM AMÉLIORÉ
Applicants ** DIAMOND INNOVATIONS, INC. 6325 Huntley Road Worthington, Ohio 43085, US
Inventors ** DUMM, Tim 1185 Wedgewood Terrace Westerville, Ohio 43082, US MORITZ, Charles Erik 6563 Mingo Drive Galena, Ohio 43021, US DRASKOVIC, Thomas 254 W. Como Avenue Columbus, Ohio 43202, US
Priority Data 63/455,629  30.03.2023  US 63/601,282  21.11.2023  US
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Quotation for National Phase entry

Country Stages Total
China Filing 1699
EPO Filing, Examination 9947
Japan Filing 567
South Korea Filing 611
USA Filing, Examination 4635
MasterCard Visa
Total: 17459
Abstract [English] Provided is a polishing composition for polishing semiconductor wafer surfaces, including a surface-modified monocrystalline diamond with a D(50) particle size ranging from about 0.10 μm to about 1 μm; a vehicle selected from the group consisting of water-based vehicles, glycol-based vehicles, oil-based vehicles, and hydrocarbon-based vehicles; and optionally one or more additives. Further presented are associated methods for polishing semiconductor wafer surfaces. [French] L'invention concerne une composition de polissage pour polir des surfaces de tranche de semi-conducteur, comprenant un diamant monocristallin modifié en surface ayant une taille de particule D(50) allant d'environ 0,10 µm à environ 1 µm ; un excipient choisi dans le groupe constitué par des excipients à base d'eau, des excipients à base de glycol, des excipients à base d'huile et des excipients à base d'hydrocarbures ; et éventuellement un ou plusieurs additifs. L'invention concerne en outre des procédés associés pour polir des surfaces de tranche de semi-conducteur.