US2008197495A1PendingUtilityA1

Structure for reducing lateral fringe capacitance in semiconductor devices

Assignee: IBMPriority: May 25, 2006Filed: Apr 21, 2008Published: Aug 21, 2008
Est. expiryMay 25, 2026(expired)· nominal 20-yr term from priority
H10W 20/495H10W 20/47H10W 20/056H10W 20/093H10W 20/077
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Claims

Abstract

A semiconductor structure includes a plurality of conductive lines formed within an interlevel dielectric (ILD) layer and a non-planar cap layer formed over the ILD layer and the conductive lines, wherein the cap layer is raised with respect to the conductive lines at locations between the conductive lines.

Claims

exact text as granted — not AI-modified
1 . A semiconductor structure, comprising:
 a plurality of conductive lines formed within an interlevel dielectric (ILD) layer; and   a non-planar cap layer formed over said ILD layer and said conductive lines, wherein said cap layer is raised with respect to said conductive lines at locations between said conductive lines.   
   
   
       2 . The semiconductor structure of  claim 1 , wherein said cap layer has a domed shape at said locations between said conductive lines. 
   
   
       3 . The semiconductor structure of  claim 1 , wherein said ILD layer comprises silicon dioxide and said cap layer comprises nitrogen-doped silicon carbide.

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