Cleaning liquid and cleaning method using the same

Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...

Reexamination Certificate

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C134S001300

Reexamination Certificate

active

07851426

ABSTRACT:
A cleaning liquid used in cleaning of a substrate for use in semiconductor devices conducted after chemical mechanical polishing in manufacture of semiconductor devices, comprising a polycarboxylic acid, an anionic surfactant having an aromatic ring structure in a molecule, a polymer compound having an acidic group on a side chain, and a low molecular weight polyethylene glycol, at the cleaning liquid having a pH of 5 or less, as well as a method of cleaning using the same.

REFERENCES:
patent: 7541322 (2009-06-01), Ikemoto et al.
patent: 2003/0171233 (2003-09-01), Abe et al.
patent: 2005/0176606 (2005-08-01), Konno et al.
patent: 2007/0232512 (2007-10-01), Nishiwaki
patent: 2007/0235061 (2007-10-01), Mizuta et al.
patent: 2008/0045016 (2008-02-01), Andou et al.
patent: 2003-289060 (2003-10-01), None
patent: 2005-260213 (2005-09-01), None

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