Invention Grant
- Patent Title: Structures and methods for monitoring dielectric reliability with through-silicon vias
- Patent Title (中): 通过硅通孔监测介质可靠性的结构和方法
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Application No.: US14068273Application Date: 2013-10-31
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Publication No.: US09404953B2Publication Date: 2016-08-02
- Inventor: Fen Chen , Mukta G. Farooq , John A. Griesemer , Chandrasekharan Kothandaraman , John Matthew Safran , Timothy Dooling Sullivan
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Steven J. Meyers; Howard M. Cohn
- Main IPC: G01R27/26
- IPC: G01R27/26 ; H01L21/66 ; G01R31/28

Abstract:
Embodiments of the present invention provide a variety of structures and method for detecting abnormalities in the back-end-of-line (BEOL) stack and BEOL structures located in close proximity to through-silicon vias (TSVs) in a 3D integrated chip. The detected abnormalities may include stress, strain, and damage that will affect metallization continuity, interfacial integrity within a metal level, proximity accuracy of the TSV placement, and interlevel dielectric integrity and metallization-to-TSV dielectric integrity. Additionally, these structures in conjunction with each other are capable of determining the range of influence of the TSV. That is, how close to the TSV that a BEOL line (or via) needs to be in order to be influenced by the TSV.
Public/Granted literature
- US20150115982A1 Structures and Methds for Monitoring Dielectric Reliability With Through-Silicon Vias Public/Granted day:2015-04-30
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