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:
Oct. 23, 2007
Filed:
Mar. 30, 2005
Applicants:
Kenji Shimokawa, Chiba, JP;
Eiji Hashino, Chiba, JP;
Kohei Tatsumi, Chiba, JP;
Inventors:
Assignee:
Nippon Steel Materials Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/44 (2006.01);
U.S. Cl.
CPC ...
Abstract
Balls are sucked onto a carrier board so as to be temporarily arranged in a ball arrangement region of the board, and then the balls are transferred and bonded onto an objective substance with their positions being adjusted. Gas blow is applied to the temporarily arranged balls or alternatively the temporarily arranged balls are sucked, so as to remove excess balls other than balls that have been exactly sucked onto the ball arrangement region. Cooperation with application of fine vibration to the carrier board makes the removal of the excess balls more efficient.