Cleaning and liquid contact with solids – Processes – Using sequentially applied treating agents
Patent
1997-03-12
1999-03-23
El-Arini, Zeinab
Cleaning and liquid contact with solids
Processes
Using sequentially applied treating agents
134 19, 134 21, 134 221, 134 254, 134 37, B08B 310, B08B 500, B08B 900
Patent
active
058853650
ABSTRACT:
A method for cleaning and drying crucibles for use in pulling single crystals by the Czochralski method after transportation of the crucibles, includes cleaning a crucible in a cleaning process; warming the crucible with pure water heated at a temperature of at least 50.degree. C.; and drying the warmed crucible under ambient conditions.
REFERENCES:
patent: 4028137 (1977-06-01), Ellbrunner et al.
Kon Shiniti
Niwayama Tadashi
Oda Michiaki
Sugai Shiniti
Yokota Kouzou
El-Arini Zeinab
Shin-Etsu Handotai & Co., Ltd.
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