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. 22, 2008
Filed:
Jan. 06, 2005
Takunori Iki, Suwa, JP;
Takunori Iki, Suwa, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
There is provided an electro-optical device comprising, above a substrate, a first conductor layer, a second conductor layer, an interlayer insulating film formed between the first conductor layer and the second conductor layer, and a contact hole, provided in the interlayer insulating film, for electrically connecting the first conductor layer and the second conductor layer in a contact portion. The first conductor layer has a multilayered structure in which an electrolytic corrosion preventing film is provided on a conductor film, in a region including at least the contact portion among the entire region thereof, and the electrolytic corrosion preventing film is not provided in other regions thereof. Thus, an electrolytic corrosion can be prevented and a contact resistance can be reduced. Further, heat can be prevented from generating.