Stress reduction apparatus

A stress reduction apparatus comprises a metal structure formed over a substrate, an inter metal dielectric layer formed over the substrate, wherein a lower portion of the metal structure is embedded in the inter metal dielectric layer and an inverted cup shaped stress reduction layer formed over th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LU YING-TI, MAO MING-RAY, TSAI KUANI, CHEN WEN-TSAO
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:A stress reduction apparatus comprises a metal structure formed over a substrate, an inter metal dielectric layer formed over the substrate, wherein a lower portion of the metal structure is embedded in the inter metal dielectric layer and an inverted cup shaped stress reduction layer formed over the metal structure, wherein an upper portion of the metal structure is embedded in the inverted cup shaped stress reduction layer.