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.

Date of Patent:
Jan. 03, 2023

Filed:

Jul. 07, 2020
Applicant:

Ebara Corporation, Tokyo, JP;

Inventors:

Yasuyuki Masuda, Tokyo, JP;

Masashi Shimoyama, Tokyo, JP;

Assignee:

EBARA CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D 21/12 (2006.01); C25D 7/12 (2006.01); C25D 5/18 (2006.01); C25D 17/00 (2006.01);
U.S. Cl.
CPC ...
C25D 5/18 (2013.01); C25D 7/123 (2013.01); C25D 21/12 (2013.01); C25D 17/001 (2013.01);
Abstract

A plating method for plating a substrate by increasing a current value from a predetermined current value to a first current value is provided. The plating method plates the substrate for a first predetermined period with the first current value when a first current density corresponding to the first current value is lower than a limiting current density. This plating method includes measuring a voltage value applied to the substrate, and when the current value is increased from the predetermined current value to the first current value, determining whether the first current density is equal to or more than the limiting current density or not based on an amount of change in the voltage value.


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