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.

Date of Patent:
Feb. 19, 2019

Filed:

May. 18, 2018
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Benjamin D. Briggs, Waterford, NY (US);

Jessica Dechene, Watervliet, NY (US);

Elbert Huang, Mountain View, CA (US);

Joe Lee, Albany, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/48 (2006.01); H01L 23/498 (2006.01); H01L 21/48 (2006.01); H01L 23/532 (2006.01); H01L 23/528 (2006.01);
U.S. Cl.
CPC ...
H01L 23/49827 (2013.01); H01L 21/4803 (2013.01); H01L 21/486 (2013.01); H01L 21/4846 (2013.01); H01L 23/498 (2013.01); H01L 23/49838 (2013.01); H01L 23/49872 (2013.01); H01L 23/49894 (2013.01); H01L 23/5329 (2013.01); H01L 23/53209 (2013.01); H01L 23/53295 (2013.01); H01L 23/528 (2013.01);
Abstract

A multi-level semiconductor device and a method of fabricating a multi-level semiconductor device involve a first interlayer dielectric (ILD) layer with one or more metal lines formed therein. A silicide is formed on a surface of the first ILD layer and is directly adjacent to each of the one or more metal lines on both sides of each of the one or more metal lines. A second ILD is formed above the silicide, and a via is formed through the second ILD above one of the one or more metal lines. One or more second metal lines are formed above the second ILD, one of which is formed in the via. The second metal line in the via contacts the one of the one or more metal lines and the silicide adjacent to the one of the one or more metal lines.


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