APPARATUS FOR CYLINDRICAL MAGNETRON SPUTTERING

A cathode target assembly for use in sputtering target material onto a substrate includes a generally cylindrical target and a magnetic array. The magnetic array is adapted to provide a plasma confinement region adjacent an outer surface of the target. End portions of the magnetic array are adapted...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GERMAN JOHN R, HARTIG KLAUS H.W
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A cathode target assembly for use in sputtering target material onto a substrate includes a generally cylindrical target and a magnetic array. The magnetic array is adapted to provide a plasma confinement region adjacent an outer surface of the target. End portions of the magnetic array are adapted to make the shape and strength of the confinement field at the turns of the racetrack closely match the shape and strength of the confinement field along the straight part of the racetrack so as to significantly reduce cross-corner effect.