Functional water, method and apparatus of producing the...

Electrolysis: processes – compositions used therein – and methods – Electrolytic synthesis – Preparing inorganic compound

Reexamination Certificate

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C204S263000, C204S265000, C204S290010, C204S294000, C205S466000, C205S746000

Reexamination Certificate

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07074316

ABSTRACT:
A functional water containing a fluorine-containing component obtained by electrolyzing an aqueous solution containing fluoride ion using electrodes having conductive diamonds, a method of producing the same, and a method and an apparatus of rinsing electronic parts using the functional water as a rinsing water. The fluorine-containing component produced by electrolyzing the fluoride ion using the conductive diamond, has stronger rinsing effect than that of a fluorine-containing component obtained by electrolyzing the fluoride ion itself before electrolysis or the fluoride ion using other electrodes. Therefore, an amount of hydrofluoric acid used can greatly be decreased.

REFERENCES:
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patent: 6235186 (2001-05-01), Tanaka et al.
patent: 6533916 (2003-03-01), Puetter et al.
patent: 6761815 (2004-07-01), Nakajima et al.
patent: 6773575 (2004-08-01), Nakajima et al.
patent: 2000204492 (2000-07-01), None

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