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:
Jul. 09, 2002
Filed:
Jan. 05, 2001
TDK Corporation, Tokyo, JP;
Abstract
In a chip device in which not only an electrode pattern is provided on a main mounting surface of a base but also bump electrodes are provided as external electrodes for face-down mounting, an electrically insulating layer is provided to be put on at least a part of the main mounting surface so as to remain edge portions which do not cover at least a part of the electrode pattern , and a protection layer for protecting the main mounting surface is further provided at a distance from the main mounting surface so as to be put on the electrically insulating layer , so that the bump electrodes are connected to the electrode pattern while being in contact with the edge portions of the electrically insulating layer and the protection layer