Neutralizing/reducing agent, and desmear method

China Patent

APP PUB NO CN-102550137-A
SERIAL NO

201080044880

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Abstract

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Disclosed is a neutralizing/reducing agent for neutralizing/reducing an oxidizing agent component that is adsorbed and remains on an object to be coated after the object is subjected to a desmear treatment with the oxidizing agent, which comprises a thioamide compound and a non-aromatic thiol compound. The neutralizing/reducing agent does not generate any gas during a neutralization/reduction treatment, and therefore the occurrence of defects caused by the neutralization/reduction on the surface of a through hole or a blind via hole can be prevented. Further, the neutralizing/reducing agent hardly dissolves copper, and therefore the occurrence of haloing can be prevented, and the blistering caused by the etching between an inner layer copper and a resin with the neutralizing/reducing agent can also be prevented.

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Patent Owner(s)

Patent OwnerAddress
UYEMURA C & CO LTDNot Provided

International Classification(s)

Inventor(s)

Inventor Name Address
HISAMITSU YAMAMOTO -
YOSHIKAZU SAIJO -
MASAYUKI UTSUMI -

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