Failure Analysis and Location Method for Short Circuit Structure

The present application provides a failure analysis and location method for a short circuit structure. a first layer metal wire structure and a second layer metal wire structure located above the first layer metal wire structure, the first and second layer metal wire structures are connected by a fi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Gao, Jinde, Yang, Lingye
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present application provides a failure analysis and location method for a short circuit structure. a first layer metal wire structure and a second layer metal wire structure located above the first layer metal wire structure, the first and second layer metal wire structures are connected by a first layer metal via located between the first and second layer metal wire structures; a second layer metal via located above the second layer metal wire structure and connected to the second layer metal wire structure. A VC anomaly in the semiconductor structure is roughly located to find a failure region. The failure region is plated with a conductive material layer to connect the second layer metal via to the conductive material layer, wherein when an abnormal VC is found at a position on the cross-section of the sample, a failure point at the position is accurately located.