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. 17, 1998
Filed:
Dec. 20, 1996
Toshimichi Naruse, Oura-gun, JP;
Noriaki Sakamoto, Yamada-gun, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
An electronic circuit apparatus has first and second pad electrodes arranged on a substrate to be separated by a first interval, first and second chip electrodes to be separated by a second interval smaller than the first interval, a first solder for fixedly attaching the first chip electrode to the first pad electrode and a second solder for fixedly attaching the second chip electrode to the second pad electrode. Because the first interval is longer than the second interval, any constricted portion does not exist in each of the first and second solders. Therefore, because any stress is not concentrated on any portion of each of the first and second solders, the occurrence of a crack in each of the first and second solders can be prevented.