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:
Apr. 12, 2005
Filed:
Oct. 06, 2003
Atsuhiro Uratsuji, Ishikawa, JP;
Tatsutoshi Narita, Ishikawa, JP;
Masanobu Yagi, Ishikawa, JP;
Yoshiyuki Ukeda, Ishikawa, JP;
Atsuhiro Uratsuji, Ishikawa, JP;
Tatsutoshi Narita, Ishikawa, JP;
Masanobu Yagi, Ishikawa, JP;
Yoshiyuki Ukeda, Ishikawa, JP;
Sony Corporation, , JP;
Abstract
A printed wiring board having a conductor pattern on which a pre-flux film of a stabilized quality is to be formed using a water-soluble pre-flux liquid. To this end, such an apparatus is used which includes an etching unitfor etching landsformed on the printed wiring board, a rinsing unitfor rinsing the printed wiring board, a bubble removing unitfor removing air bubblesattached to the printed wiring boardon immersing the printed wiring boardin a water-soluble pre-flux liquidin a processing vessel, a pre-flux forming unitfor forming a pre-flux filmon the landsof the printed wiring boardin the pre-flux liquidusing an in-liquid spraying unit, a liquid removing unitfor removing the pre-flux liquidfrom the printed wiring boardtransported from the processing vesseland a rinsing unitfor rinsing the printed wiring board