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:
Dec. 14, 2010
Filed:
Jun. 26, 2008
Tomio Yamashita, Ogaki, JP;
Mitsuaki Morigami, Kishiwada, JP;
Tomio Yamashita, Ogaki, JP;
Mitsuaki Morigami, Kishiwada, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A wiring structure includes a first wiring, a first interlayer dielectric film having a first opening, a second wiring formed with a first recess portion on a region corresponding to the first opening, a second interlayer dielectric film having a second opening and a third wiring so formed as to cover the second interlayer dielectric film, wherein an inner side surface of the second opening is arranged on a region corresponding to the first recess portion and formed such that an opening width of a portion in the vicinity of an upper end increases from a lower portion toward an upper portion.