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:
May. 03, 2016
Filed:
Nov. 16, 2012
Panasonic Corporation, Kadoma-shi, Osaka, JP;
Daisuke Sakurai, Osaka, JP;
Kazuya Usirokawa, Osaka, JP;
Abstract
A plurality of protruding electrodes of a semiconductor chip are in contact with a plurality of electrodes formed on a semiconductor substrate, via a plurality of solder sections. In this state, the solder sections are melted so as to form a plurality of solder bonding sections joined to the protruding electrodes of the semiconductor chip and the electrodes of the semiconductor substrate. Moreover, a distance between a part of the semiconductor chip and the semiconductor substrate is larger than a distance between the other part of the semiconductor chip and the semiconductor substrate, extending at least some of the solder bonding sections. Thus, the solder bonding sections vary in height. Holes are then formed at least in a solder bonding section having a maximum height out of the solder bonding sections. After that, the solder bonding sections are solidified.