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. 22, 2008
Filed:
Nov. 24, 2004
Applicant:
Akira Yashiro, Kanagawa, JP;
Inventor:
Akira Yashiro, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/48 (2006.01);
U.S. Cl.
CPC ...
Abstract
A device package, such as a BGA, to be mounted on a printed wiring board (PWB) is disclosed. The bottom electrodes of the device package are arranged in an array such that intervals between the edges of the bottom electrodes become different from place to place. The intervals may be set wider at the peripheral positions of the bottom electrodes. The PWB includes pads that are located at positions corresponding to the bottom electrodes.