Air gap semiconductor structure with selective cap bilayer

A semiconductor substrate including one or more conductors is provided. A first layer and a second layer are deposited on the top surface of the conductors. A dielectric cap layer is formed over the semiconductor substrate and air gaps are etched into the dielectric layer. The result is a bilayer ca...

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Bibliographische Detailangaben
Hauptverfasser: KIOUSSIS DIMITRI R, PENNY CHRISTOPHER J, HUANG ELBERT E, GATES STEPHEN M, PRIYADARSHINI DEEPIKA
Format: Patent
Sprache:eng
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Zusammenfassung:A semiconductor substrate including one or more conductors is provided. A first layer and a second layer are deposited on the top surface of the conductors. A dielectric cap layer is formed over the semiconductor substrate and air gaps are etched into the dielectric layer. The result is a bilayer cap air gap structure with effective electrical performance.