Quad-layer high-k for metal-insulator-metal capacitors

A semiconductor structure, and a method of making the same includes a multiple electrode stacked capacitor containing a sequence of first metal layers interleaved with second metal layers. A quad-layer stack separates each of the first metal layers from each of the second metal layers, the quad-laye...

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Bibliographische Detailangaben
Hauptverfasser: Cartier, Eduard Albert, Choi, Kisik, Massey, John Greg, Jamison, Paul Charles, Ando, Takashi
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A semiconductor structure, and a method of making the same includes a multiple electrode stacked capacitor containing a sequence of first metal layers interleaved with second metal layers. A quad-layer stack separates each of the first metal layers from each of the second metal layers, the quad-layer dielectric stack includes a first dielectric layer made of Al2O3, a second dielectric layer made of HfO2, a third dielectric layer made of Al2O3, and a fourth dielectric layer made of HfO2.