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. 21, 2006
Filed:
Dec. 29, 2004
Applicants:
Yoko Kobayashi, Kawasaki, JP;
Hidehisa Sakai, Kawasaki, JP;
Inventors:
Yoko Kobayashi, Kawasaki, JP;
Hidehisa Sakai, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus for predicting a deformation of a board includes a board dividing unit that divides the board into a plurality of areas based on wiring information on the board; and a deformation predicting unit that grasps a wiring pattern of an area macroscopically, calculates an equivalent physical property value equivalent to a modulus of longitudinal elasticity and a coefficient of thermal expansion by a finite element method, and predicts the deformation of the board based on the equivalent physical property value calculated for each of the areas divided by the board dividing unit.