Metal surface treatment liquid and liquid concentrate thereof, metal surface treatment liquid set, metal surface treatment method, and method for manufacturing printed wiring board
AssigneeShikoku Chemicals Corporation
InventorsNoriaki Yamaji, Tatsuya Koga, Hirohiko Hirao
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Abstract
The present invention provides a surface treatment liquid for metal having a sufficiently high film-forming property. The present invention relates to a surface treatment liquid for metal comprising an azole silane coupling agent, the surface treatment liquid further comprises (A) an organic acid ion having one to three acidic groups in one molecule; (B) an inorganic acid (or mineral acid) ion; (C) an alkali metal ion and/or an ammonium ion; and (D) a copper ion.
Claims19
A surface treatment liquid for metal comprising an azole silane coupling agent,
- the surface treatment liquid further comprising:
- (A) an organic acid ion having one to three acidic group(s) in one molecule;
- (B) an inorganic acid ion;
- (C) an alkali metal ion and/or an ammonium ion;
- and
- (D) a copper ion.
A liquid concentrate of a surface treatment liquid for metal, comprising an azole silane coupling agent,
- the liquid concentrate further comprising an organic acid ion;
- an inorganic acid ion;
- an alkali metal ion and/or an ammonium ion;
- and a copper ion,
- wherein an atomic concentration of silicon comprised in the liquid concentrate is in a range of 0.10 to 1.00% by weight.
A surface treatment liquid set for metal, comprising a first liquid and a second liquid, for producing a surface treatment liquid for metal comprising an azole silane coupling agent, an organic acid ion, an inorganic acid ion, an alkali metal ion and/or an ammonium ion, and a copper ion by mutual mixing of the first liquid and the second liquid,
- wherein
- the azole silane coupling agent is comprised in the first liquid,
- the organic acid ion, the inorganic acid ion, the alkali metal ion and/or the ammonium ion, and the copper ion are each independently comprised in the first liquid and/or the second liquid, and
- an atomic concentration of silicon comprised in the first liquid is in a range of 0.033 to 1.00% by weight.
Dependencies are inferred from the claim text.