The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 6638564 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 28, 2003

Filed:

Apr. 09, 2001
Applicant:
Inventors:

Yuji Segawa, Tokyo, JP;

Akira Yoshio, Tokyo, JP;

Masatoshi Suzuki, Kanagawa, JP;

Katsumi Watanabe, Kanagawa, JP;

Shuzo Sato, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D 3/12 ; B05D 1/18 ; B05D 1/02 ; B05D 3/10 ;
U.S. Cl.
CPC ...
B05D 3/12 ; B05D 1/18 ; B05D 1/02 ; B05D 3/10 ;
Abstract

A method of electroless plating for processing a plating surface to form a barrier layer being capable of uniformly forming a barrier layer and reducing the consumption of a processing solution, comprising a step of feeding a processing solution used in at least one of the pre-processing steps of the electroless plating and the electroless plating step to the plating surface for puddling treatment, or, using a processing solution at least containing, with respect to one mole of a first metallic material supplying a main ingredient of the barrier layer, three or more moles of a completing agent and three or more moles of reducing agent and having a pH value adjusted to 9 or more and stored in an atmosphere of an inert gas or ammonia gas, and a corresponding electroless plating apparatus.


Find Patent Forward Citations

Segawa, Yuji. (2003). Method of electroless plating and electroless plating apparatus (U.S. Patent No. 6638564). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6638564

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