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:
Sep. 24, 2024

Filed:

Apr. 26, 2023
Applicant:

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

Inventors:

Alexander Reznicek, Albany, NY (US);

Chih-Chao Yang, Albany, NY (US);

Miaomiao Wang, Albany, NY (US);

Donald Canaperi, Albany, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 23/525 (2006.01);
U.S. Cl.
CPC ...
H01L 23/5256 (2013.01);
Abstract

Fabrication method for forming a resistance tunable fuse stack structure includes forming on a substrate layer a first fuse conductive layer, directly on, and contacting a top surface of, the substrate layer, followed by forming a first inter-layer dielectric (ILD) layer, directly on, and contacting a top surface of, the first fuse conductive layer, a second fuse conductive layer, directly on, and contacting a top surface of, the first ILD layer, followed by forming a second ILD layer, directly on, and contacting a top surface of, the second fuse conductive layer. First and second fuse contacts are formed in the fuse stack structure vertically extending through the layers and contacting at least one of the first and second fuse conductive layers. Selection of various attributes of the fuse stack structure tunes a resistance of a fuse formed between the first and second fuse contacts.


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