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:
May. 17, 2005
Filed:
Feb. 08, 2002
Kunio Kishimoto, Osaka, JP;
Toshihiro Nishii, Osaka, JP;
Toshiaki Takenaka, Kyoto, JP;
Shinji Nakamura, Osaka, JP;
Akihiro Miura, Osaka, JP;
Kunio Kishimoto, Osaka, JP;
Toshihiro Nishii, Osaka, JP;
Toshiaki Takenaka, Kyoto, JP;
Shinji Nakamura, Osaka, JP;
Akihiro Miura, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A method and system of cleaning to remove cutting dust and the like generated and adhering to a board material () during drilling for electrical connection, and drying the board material, in a process of manufacturing a circuit board for small electronic equipment and the like. A large amount of board materials can be treated without receiving thermal damage by performing the steps of: placing sheets of the board material that have absorbed moisture resulting from cleaning, like a stack in a vacuum chamber (); and drying the board material by repeating evacuation and pressurization under predetermined conditions while heating the board material.