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:
Aug. 05, 2003
Filed:
Jun. 29, 2001
Naoki Takao, Soraku-gun, JP;
Sharp Kabushiki Kaisha, , JP;
Abstract
An IC chip mounting FPC board of the present invention is provided with (1) a mounting region in a substantially quadrangular shape for mounting an IC chip, and (2) a plurality of inner-leads provided along each side of the mounting region, for being connected with the bumps of the IC chip so that the IC chip is mounted and bonded in the mounting region, in which the inner-leads is provided so as to have substantial equality between (a) a sum of areas of superimposing regions of the inner-leads provided on one of facing two sides, and (b) a sum of areas of superimposing regions of the inner-leads provided on the other of the facing two sides. Because this substantially equalizes the pressures applied on the respective inner-leads during the mounting of the IC chip, preventing the bonding pressure of the mounting from being unbalance, it is possible to provide an IC chip mounting FPC board having a high bonding reliability.