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:
Nov. 06, 2012
Filed:
Sep. 28, 2007
Naoki Nakamura, Kawasaki, JP;
Shigeru Sugino, Kawasaki, JP;
Ryo Kanai, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
Terminal pads are arranged on a first surface of the substrate for an electronic component to receive terminals of the electronic component. An electrically-conductive film is formed on a second surface defined on the back of the first surface over the back of a mounting area for the electronic component. The mounting area is contoured along the outer periphery of the arrangement of the terminal pads. The ratio of the area of the electrically-conductive material to the area of the surface of the substrate over the back of the mounting area is set appropriate to the ratio of the area of the electrically-conductive material to the area of the surface of the substrate over the mounting area for each electronic component. This results in suppression of flexure of the printed wiring board during reflow.