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.:
Date of Patent:
Jun. 09, 2009
Filed:
Apr. 11, 2005
Hiroyuki Daiku, Osaka, JP;
Hidehiko Maehata, Osaka, JP;
Masanori Tsukahara, Osaka, JP;
Shogo Hamada, Osaka, JP;
Tetsuya Inoue, Osaka, JP;
Hiroshi Hamasaki, Osaka, JP;
Hiroyuki Daiku, Osaka, JP;
Hidehiko Maehata, Osaka, JP;
Masanori Tsukahara, Osaka, JP;
Shogo Hamada, Osaka, JP;
Tetsuya Inoue, Osaka, JP;
Hiroshi Hamasaki, Osaka, JP;
Hitachi Zosen Corporation, Osaka, JP;
Abstract
A system for removing a thin metal film is disclosed. The system comprises an inclined metal plate electrode for guiding a downward electrolyte flow, an auxiliary electrode placed on either the upstream or downstream side of the metal plate electrode such that a part of the auxiliary electrode is immersed into the electrolyte, and a power supply for applying a DC voltage to the both electrodes. The system is used to remove a metal thin film on the surface of an insulator by making the electrolyte flowing down the metal plate electrode strike against the metal thin film while the DC voltage is applied to the metal plate electrode and auxiliary electrode.