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. 25, 2012
Filed:
Oct. 04, 2010
Herb Huang, Shanghai, CN;
Wei Min LI, Shanghai, CN;
Fish Ren, Shanghai, CN;
Nancy Han, Shanghai, CN;
Herb Huang, Shanghai, CN;
Wei Min Li, Shanghai, CN;
Fish Ren, Shanghai, CN;
Nancy Han, Shanghai, CN;
Abstract
The present invention provides an LCOS device having improved bonding pad features. The device has a substrate, a transistor layer overlying the substrate and an interlayer dielectric layer overlying the transistor layer. A first conductive layer is overlying the interlayer dielectric layer and a second interlayer dielectric layer is overlying the first conductive layer. An enlarged opening for a bonding pad structure is in a first portion of the second interlayer dielectric layer. A barrier metal layer is formed within the enlarged opening to form a liner that covers exposed regions of the enlarged opening. A metal material is overlying the liner to fill the enlarged opening. A thickness of an aluminum material is overlying the metal material. The device has a bonding pad structure formed from a first portion of the thickness of the aluminum material and is coupled to the metal material in the enlarged opening.